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Background: Cognitive impairment is common and disabling in Parkinson’s disease (PD). Cognitive testing can be time consuming in the clinical setting. One rapid test to detect cognitive impairment in non-PD populations is the Clock Drawing Test (CDT), which calls upon the brain’s executive and visuospatial abilities to draw a clock designating a certain time. Objective: Test the hypothesis that PD participants would perform worse on CDT compared to controls and that CDT would correlate with other measures of cognition. Methods: This study evaluated two independent CDT scoring systems and differences in CDT performance between PD (N = 97) and control (N = 54) participants using a two-sample t-test. Pearson’s correlations were conducted between the CDT and tests of sleepiness (Epworth Sleepiness Scale) and vigilance (Psychomotor Vigilance Test); executive function (Trails B-A); and global cognition (Montreal Cognitive Assessment). Receiver operating characteristic curves were used to determine cut points on the CDT that identify individuals who need additional cognitive testing. Results: PD participants had worse performance on CDT compared to controls. The CDT was correlated with executive function (Trails B-A) and global cognition (Montreal Cognitive Assessment). The CDT correlated with vigilance (Psychomotor Vigilance Task) only in healthy controls. However, the CDT was not correlated with measures of sleepiness (Epworth Sleepiness Scale) in either group. A cut point of 9 on the Rouleau scale and 18 on the Mendez scale identified PD participants with cognitive impairment. Conclusion: The CDT is a rapid clinical cognitive assessment that is feasible in PD and correlates with other measures of cognition.

Background: Poor sleep is a potential modifiable risk factor for later life development cognitive impairment. The aim of this study is to examine if subjective measures of sleep duration and sleep disturbance predict future cognitive decline in a population-based cohort of 60, 66, 72 and 78-year-olds with a maximal follow up time of 18 years. Methods: This study included participants from the Swedish National Study on Ageing and Care – Blekinge, with assessments 2001–2021. A cohort of 60 (n = 478), 66 (n = 623), 72 (n = 662) and 78 (n = 548) year-olds, were assessed at baseline and every 6 years until 78 years of age. Longitudinal associations between sleep disturbance (sleep scale), self-reported sleep duration and cognitive tests (Mini Mental State Examination and the Clock drawing test) were examined together with typical confounders (sex, education level, hypertension, hyperlipidemia, smoking status, physical inactivity and depression). Results: There was an association between sleep disturbance at age 60 and worse cognitive function at ages 60, 66 and 72 years in fully adjusted models. The association was attenuated after bootstrap-analysis for the 72-year-olds. The items of the sleep scale most predictive of later life cognition regarded nightly awakenings, pain and itching and daytime naps. Long sleep was predictive of future worse cognitive function. Conclusion: Sleep disturbance was associated with worse future cognitive performance for the 60-year-olds, which suggests poor sleep being a risk factor for later life cognitive decline. Questions regarding long sleep, waking during the night, pain and itching and daytime naps should be further explored in future research and may be targets for intervention. CC BY 4.0© 2022 The AuthorsCorresponding author at: Department of Health, Blekinge Institute of Technology, Valhallavägen 1, 371 41 Karlskrona, Sweden. E-mail address: anders.behrens@bth.se (A. Behrens). SNAC is financially supported by the Ministry of Health and Social Affairs, Sweden, and the participating county councils, municipalities, and university departments.

Актуальність. Депресія є фактором ризику виникнення цукрового діабету (ЦД) та негативно впливає на його перебіг, підвищуючи ризик розвитку ускладнень. Метою дослідження було оцінити стан когнітивної функції у хворих на ЦД 2-го типу похилого віку з депресивними розладами та без них. Матеріали та методи. Було обстежено 115 хворих на ЦД 2-го типу, із них жінок було 78, чоловіків — 37. Пацієнти були розподілені на дві групи: з депресивними розладами та без них. Оцінка депресивних виявів проводилася за допомогою самоопитувальника депресії. Оцінка когнітивних порушень здійснювалася зранку за допомогою таких методів: тесту «5 слів», шкали оцінки психічного статусу, батареї тестів на лобну дисфункцію, тесту малювання годинника. Результати. У 68,7 % хворих на ЦД 2-го типу похилого віку не відзначаються депресивні розлади за даними самоопитувальника депресії, легкі вияви спостерігались у 17,4 % обстежених, помірні — у 10,4 % та 3,5 % хворих мали тяжкі вияви депресії. У пацієнтів із депресивними розладами спостерігаються вірогідно гірші показники когнітивної функції. У хворих на ЦД із помірними та тяжкими виявами депресії стан когнітивної функції вірогідно гірший порівняно з пацієнтами, які мають легкі вияви депресії чи без депресивних розладів. Висновки. Необхідно проводити скринінг у всіх пацієнтів із ЦД 2-го типу на наявність депресивних розладів із метою профілактики порушень когнітивних функцій.

Background: Few studies have investigated associations between types of clock drawing test (CDT) errors and cognitive impairment. Objective: To explore associations of qualitative errors in the CDT with comprehensive neurocognitive assessment scores and clinical diagnosis. Methods: Outpatients at a memory clinic were enrolled. Frequencies of errors determined by Cahn’s method were explored according to cognitive status (cognitively normal [CN] (n = 279), mild cognitive impairment [MCI] (n = 321), and Alzheimer’s disease [AD]) (n = 575). Neuropsychological assessment scores were compared between participants with and without errors. Results: Stimulus-bound response (SB) was relatively rare (6.8%) in the CN group but was markedly more common in the MCI (23.4%) and AD (33.2%) groups. Conceptual deficit (CD) was found in more than 20%of CN individuals, as well as about 50%of AD patients. Planning deficit (PD) frequencies were relatively similar among the groups. SB in both of CN and MCI individuals, and CD in both of CN and MCI individuals were associated with lower scores in several neuropsychological assessments. Meanwhile, PD was not associated with lower assessment scores in any of CN, MCI, or AD individuals. Conclusion: The frequencies of SB and CD increased from CN, MCI, to AD but showed somewhat different patterns. Both SB and CD were associated with lower cognition in all three cognitive stages.

Background The early detection of patients at risk of post-stroke cognitive impairment (PSCI) may help planning subacute and long-term care. We aimed to determine the predictivity of two screening cognitive tests on the occurrence of mild cognitive impairment or dementia in acute stroke patients. Methods A cognitive assessment within a few days of ischemic or hemorrhagic stroke was performed in patients consecutively admitted to a stroke unit over 14 months by means of the Clock Drawing Test (CDT) and the Montreal Cognitive Assessment-Basic (MoCA-B). Results Out of 191 stroke survivors who were non-demented at baseline, 168 attended at least one follow-up visit. At follow-up (mean duration ± SD 12.8 ± 8.7 months), 28 (18.9%) incident cases of MCI and 27 (18%) cases of dementia were recorded. In comparison with patients who remained cognitively stable at follow-up, these patients were older, less educated, had more comorbidities, a higher score on the National Institutes of Health Stroke Scale (NIHSS) at admission, more severe cerebral atrophy, and lower MoCA-B and CDT scores at baseline. In multi-adjusted (for age, education, comorbidities score, NIHSS at admission and atrophy score) model, a pathological score on baseline CDT (p Conclusion A bedside cognitive screening with the CDT helps identifying patients at higher risk of PSCI.

Background: Traumatic brain injuries (TBIs) are the leading cause of morbidity, mortality, disability, and socioeconomic losses globally, but of more concern, in India and other developing countries. The Mini mental state examination (MMSE) and clock drawing test (CDT) are the two mostly adapted methods for cognitive impairment screening. Therefore, it is necessary to establish a robust evaluation system exclusively for post-TBI cognitive impairment. Materials and Methods: One hundred and thirty-four cases treated previously at the health facility for TBIs were evaluated for cognitive functions during the follow-up period ranging from 3 weeks to 6 months in the out-patient department. All cases underwent mini-mental score examination (MMSE) and CDT to assess their cognitive performances. The data were analyzed statistically using Chi-square and ANOVA tests of significance. Results: Statistically significant association (P < 0.001) between the cognitive status of patients on the basis of overall MMSE score and the site of brain injury was observed. It was noted that 76 (56.7%) of the cases had cognitive impairment (MMSE score

Introduction Hypertension (HTN) is the most frequent cause of subcortical vascular brain injury (VBI) and its cognitive consequences. The aims were to show the usefulness of the Clock Drawing Test (CDT) to detect cognitive impairment in hypertensive patients and to compare it with the Mini-Mental Test (MMSE). Methods A subset of hypertensive patients of the Heart-Brain Study in Argentina was included. Demographic characteristics, vascular risk factors, blood pressure (BP) and schooling level were recorded. The MMSE and CDT tests were used for neurocognitive assessment and Hospital Anxiety Depression scale (HAD) for mood disorder evaluation. Results 1414 hypertensive patients (age 59.7 ± 13.8 years, female (62.3%). The prevalence of cognitive impairment was 20.7% (using MMSE) and 36.1% (using CDT). Among hypertensive patients with normal MMSE (>24) 29.3% had cognitive impairment (abnormal CDT). The CDT was associated with level of education but not with age or mood status. Conclusions The CDT is a useful screening tool to detect hypertension-mediated brain damage earlier (especially in midlife) and is more sensitive than MMSE.

Objective: Delirium is a common neurocognitive syndrome among hospitalised older adults. The clock drawing test (CDT) is a relatively simple bedside test of cognitive function. This systematic revi...

Objective The aim: To assess the severity of cognitive impairment (CI) in patients with cerebrovascular disease (CVD) depending on the number of vascular risk factors (VRF). Patients and methods Materials and methods: The study consisted of five hundred and eighty patients with CVD (247 females and 333 males) aged from 45 to 89 years (mean age: 64,1±8,9 years). The patients were divided into 6 groups (I, II, III, IV, V, VI) depending on the number of VRF. The examination consisted of a standard clinical evaluation, neurological examination, the application of neuropsychological tests (the MMSE; the PALT/The Paired Associates Learning Test; clock drawing test), laboratory tests, MRI of brain. Results Results: According to ANOVA, the greater the number of VRF the patients had, the lower was their total MMSE score corresponding to more pronounced cognitive decline (F=2,97, p=0,012). A significant negative correlation between patients' age and their MMSE score was detected regardless of their VRF count. The patients of the V and VI groups had substantially lower parameters of immediate, delayed memory and clock drawing test score comparing to the patients of the I group. Conclusion Conclusions: The presence of 4 and more VRF was related to more pronounced CI in the patients with CVD. Decline of different aspects of memory, attention, spatial orientation, abstract thinking, planning, concentration, executive and visuospatial skills in groups of patients with 4,5 and 6 vascular risk factors was established. Age was substantially associated with cognitive decline in all the group of patients.

SekretnyiVolodymyr, Nekhanevych Oleh. Long-term consequences of traumatic brain injuries with ice-hockey players. Journal of Education, Health and Sport. 2021;11(10):204-214. eISSN 2391-8306. DOI http://dx.doi.org/10.12775/JEHS.2021.11.10.018 https://apcz.umk.pl/JEHS/article/view/JEHS.2021.11.10.018 https://zenodo.org/record/5603131 The journal has had 5 points in Ministry of Science and Higher Education parametric evaluation. § 8. 2) and § 12. 1. 2) 22.02.2019. © The Authors 2021; This article is published with open access at Licensee Open Journal Systems of Nicolaus Copernicus University in Torun, Poland Open Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author (s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non commercial license Share alike. (http://creativecommons.org/licenses/by-nc-sa/4.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited. The authors declare that there is no conflict of interests regarding the publication of this paper. Received: 05.10.2021. Revised: 10.10.2021. Accepted: 26.10.2021. LONG-TERM CONSEQUENCES OF TRAUMATIC BRAIN INJURIES WITH ICE-HOCKEY PLAYERS Volodymyr Sekretnyi, Oleh Nekhanevych e-mail: dr.sekretnyi@gmail.com Dnipro state medical university Department of physical rehabilitation, sports medicine and valeology V. Vernadskogo str., 9, Dnipro, 49044, Ukraine Abstract Introduction Contact sports (football, hockey, boxing, mixed martial arts, rugby and American football) are sports with high frequency of traumatic brain injuries (TBI). But a significant part of sports related concussions (SRC) are below thelevel of clinical diagnosis of SRC or are unnoticed. The most severe cumulative consequence of SRC is chronic traumatic encephalopathy (CTE). CTE is a progressive neurodegenerative disease accompanied by motor, psychological and cognitive disorders. Today, CTE widely resonates in the science world due to suicides among famous athletes. Despite the fact that this disease has been studied for almost 100 years, the diagnosis of CTE can be made only after autopsy. That is why the study of a wide range of clinical manifestations of CTE plays an important role. Purpose To establish long-term cognitive consequences of TBI in ice hockey players. Material and methods Retrospectively, we tested retired 20 ice hockey players (17 men and 3 women). All the players were winners of the Ukrainian Ice Hockey Championship and members of the national teams of Ukraine.The average age is 34 ± 9.4 years, the youngest of them is 21 years old, the oldest is 51 years old. Also, players were divided into age groups: 18-28 years, 29-38 years, 39 and older. All athletes had at least one SRC (7 athletes had 1 SRC, 2 SRC – 3 athletes, 3 SRC – 6 athletes, 4 and more – 4 athletes). 7 hockey players were hospitalized after having had SRC (which indicates the severity of SRC). All athletes completed a questionnaire with their team doctor, which included: passport part, sports history, history of SRC, a mini mental scale evaluation (MMSE) and «the clock drawing test». Results Dividing athletes into groups according to the number of SRC received during their professional career, we compared their MMSE result. The results of the analysis showed a statistically significant decrease in the value of MMSE with an increase in SRC more than 1 during a sports career. Thus, in the group with 1 SRC the value of MMSE was 28.7 (1.38) points, while in the group with 2 or more SMS it was equal to 26.7 (1.15) points (p Conclusions Our study has outlined connection between cognitive impairment in ice-hockey players and SRC. Despite the fact that the world literature emphasizes the importance of cognitive testing both to guide athletes before and after SRC, and to assess the long-term effects of SC, there is no one diagnostic protocol and it requires unification and mandatory inclusion in the diagnostic program for the athlete who had SRC. Key words: ice hockey, sports related concussion, chronic traumatic encephalopathy, cognitive impairment.

Cognitive assessment is a cornerstone of geriatric care. Cognitive impairment has the potential to significantly impact multiple phases of a person’s cancer care experience. Accurately identifying this vulnerability is a challenge for many cancer care clinicians, thus the use of validated cognitive assessment tools are recommended. As international cancer guidelines for older adults recommend Geriatric Assessment (GA) which includes an evaluation of cognition, clinicians need to be familiar with the overall interpretation of the commonly used cognitive assessment tools. This rapid review investigated the cognitive assessment tools that were most frequently recommended by Geriatric Oncology guidelines: Blessed Orientation-Memory-Concentration test (BOMC), Clock Drawing Test (CDT), Mini-Cog, Mini-Mental State Examination (MMSE), Montreal Cognitive Assessment (MoCA), and Short Portable Mental Status Questionnaire (SPMSQ). A detailed appraisal of the strengths and limitations of each tool was conducted, with a focus on practical aspects of implementing cognitive assessment tools into real-world clinical settings. Finally, recommendations on choosing an assessment tool and the additional considerations beyond screening are discussed.

Clock drawing test is a classic and reliable clinical assessment of cognitive functions. However, it requires manual inspection and scoring. In this paper, via several computer vision and artificial intelligence techniques, we successfully design and implement an intelligent system with the ability to score the test in an automatic manner. As a mobile application, our work allows users to take a clock drawing test anytime and anywhere.

The Clock Drawing Test (CDT) is a rapid, inexpensive, and popular screening tool for cognitive functions. In spite of its qualitative capabilities in diagnosis of neurological diseases, the assessment of the CDT has depended on quantitative methods as well as manual paper based methods. Furthermore, due to the impact of the advancement of mobile smart devices imbedding several sensors and deep learning algorithms, the necessity of a standardized, qualitative, and automatic scoring system for CDT has been increased. This study presents a mobile phone application, mCDT, for the CDT and suggests a novel, automatic and qualitative scoring method using mobile sensor data and deep learning algorithms: CNN, a convolutional network, U-Net, a convolutional network for biomedical image segmentation, and the MNIST (Modified National Institute of Standards and Technology) database. To obtain DeepC, a trained model for segmenting a contour image from a hand drawn clock image, U-Net was trained with 159 CDT hand-drawn images at 128 × 128 resolution, obtained via mCDT. To construct DeepH, a trained model for segmenting the hands in a clock image, U-Net was trained with the same 159 CDT 128 × 128 resolution images. For obtaining DeepN, a trained model for classifying the digit images from a hand drawn clock image, CNN was trained with the MNIST database. Using DeepC, DeepH and DeepN with the sensor data, parameters of contour (0–3 points), numbers (0–4 points), hands (0–5 points), and the center (0–1 points) were scored for a total of 13 points. From 219 subjects, performance testing was completed with images and sensor data obtained via mCDT. For an objective performance analysis, all the images were scored and crosschecked by two clinical experts in CDT scaling. Performance test analysis derived a sensitivity, specificity, accuracy and precision for the contour parameter of 89.33, 92.68, 89.95 and 98.15%, for the hands parameter of 80.21, 95.93, 89.04 and 93.90%, for the numbers parameter of 83.87, 95.31, 87.21 and 97.74%, and for the center parameter of 98.42, 86.21, 96.80 and 97.91%, respectively. From these results, the mCDT application and its scoring system provide utility in differentiating dementia disease subtypes, being valuable in clinical practice and for studies in the field.

Background Frailty and cognitive impairment (CI) are associated and often coexist in older adults. Whether temporal patterns of occurrence reflect different etiologies remain unknown. Methods Participants from the National Health and Aging Trends Study were assessed annually (2011–2016) for frailty (Fried’s criteria) and CI (bottom quintile of clock drawing test or immediate and delayed recall; proxy-report of dementia diagnosis or AD8 ≥ 2). We used the Fine & Gray model to identify correlates of frailty onset before CI, CI onset before frailty, and frailty-CI co-occurrence, accounting for death as a competing risk. Results Of 3,848 free of frailty, CI, and dementia at baseline, 2,183 (61.2%) developed neither frailty nor CI during the 5-year follow-up; 343 (8.3%) developed frailty first; 1,014 (24.4%) developed CI first; and 308 (6.0%) developed frailty-CI co-occurrence. Incident dementia, as a marker of underlying neuropathologies, was associated with greater likelihood of CI onset first (subdistribution hazard ratios [SHR] = 2.60, 95% confidence interval [ci] 2.09 to 3.24), and frailty-CI co-occurrence (SHR = 8.77, 95% ci 5.79 to 13.28), but lower likelihood of frailty onset first (SHR = 0.38, 95% ci 0.21 to 0.68). Number of comorbidities was only associated with frailty occurrence first (1 comorbidity: SHR = 2.51, 95% ci 1.15 to 5.47; 4+ comorbidities: SHR = 6.48, 95% ci 2.78 to 15.48). Conclusions Different patterns of frailty and CI occurrence exist, and dementia-related pathologies and comorbidities may be important correlates of order of emergence, potentially reflecting different etiologies. Future investigation into relationships between these patterns and dementia subtypes and related pathologies is needed to elucidate etiologic pathways and to provide new targets for prevention, intervention, and risk screening.

Objectives. To assess changes in cognitive functions in patients with ischemic heart disease before and after elective aortocoronary bypass (ACB). Materials and methods. A total of 192 patients took part in the study and were divided into three groups. Group 1 included 88 patients who underwent ACB using the standard method (SM) with extracorporeal circulation; group 2 consisted of 61 patients who received a differential methodology approach (DM) to selection of the method for ACB; the control group included 43 patients. Neurological testing was performed using the Mini Mental State Examination, the Frontal Assessment Battery, the clock drawing test, Schulte tables, the verbal associations test, and the Wechsler Adult Intelligence Scale. Results and conclusions. Post-operative cognitive dysfunction was found to occur 3.2 times more frequently using SM ACB, while patients in the DM group showed a tendency to improved cognitive functions after surgery.

Background The Clock Drawing Test (CDT) has been widely used in clinic for cognitive assessment. Recently, a digital Clock Drawing Text (dCDT) that is able to capture the entire sequence of clock drawing behaviors was introduced. While a variety of domain-specific features can be derived from the dCDT, it has not yet been evaluated in a large community-based population whether the features derived from the dCDT correlate with cognitive function. Objective We aimed to investigate the association between dCDT features and cognitive performance across multiple domains. Methods Participants from the Framingham Heart Study, a large community-based cohort with longitudinal cognitive surveillance, who did not have dementia were included. Participants were administered both the dCDT and a standard protocol of neuropsychological tests that measured a wide range of cognitive functions. A total of 105 features were derived from the dCDT, and their associations with 18 neuropsychological tests were assessed with linear regression models adjusted for age and sex. Associations between a composite score from dCDT features were also assessed for associations with each neuropsychological test and cognitive status (clinically diagnosed mild cognitive impairment compared to normal cognition). Results The study included 2062 participants (age: mean 62, SD 13 years, 51.6% women), among whom 36 were diagnosed with mild cognitive impairment. Each neuropsychological test was associated with an average of 50 dCDT features. The composite scores derived from dCDT features were significantly associated with both neuropsychological tests and mild cognitive impairment. Conclusions The dCDT can potentially be used as a tool for cognitive assessment in large community-based populations.

Background: The ongoing scientific debate regarding the association between physical function and cognitive impairment has focused mainly on global cognitive performance rather than specific cognitive functions tests and the importance of recognition of its associations and any factors that could play a role later in the prevention of such decline. Objective: This study examined the association between physical function, using handgrip strength (HGS) and Timed Up-and-Go test (TUGT), and executive function (EF), using Clock Drawing Test (CDT), among community-dwelling Egyptian elderly. Methods: A cross-sectional study was conducted in 5 social clubs in Cairo, Egypt and included a sample of 136 elderly males and females aged≥55 years old. All participants had their physical function assessed using TUGT, and measurement of HGS using a pneumatic hand-held dynamometer. Assessment of EF using CDT was also done. Results: Higher CDT scores were significantly associated with both better HGS, and lower TUGT (OR = 3.77, and 0.65 respectively). This persisted even after adjustment for age and gender (OR = 2.56, and 0.71 respectively) and after further adjustment for weight, systolic blood pressure, education, smoking, hyperlipidemia, hypothyroidism, and physical activity (O.R. = 4.79, and 0.76 respectively). Adjustment for both male and female genders showed an association between physical (HGS and TUGT) and EF was stronger among men. Conclusion: A strong association between CDT score and both of HGS and TUGT was found among the studied sample. Higher HGS and lower TUGT was significantly associated with better performance in the CDT. This association is stronger in males than in females for both HGS and TUGT.

Introduction: This study compared the Turkish version of Test Your Memory (TYM) MMSE (Mini-Mental State Examination) and CDT (Clock Drawing Test) in patients with neurocognitive disorder. Methods: After a thorough medical workup, patients with a diagnosis of neurocognitive disorder were enrolled. A cross-sectional design was used to compare the TYM results with those of MMSE and CDT. Results: This study was conducted on 100 patients, including 46 males and 54 females, aged 52 to 86. The majority of patients were diagnosed with vascular neurocognitive disorder. The z-score of TYM-TR was significantly lower in the domains of registration, recall, visuospatial, and total score. The same results were achieved when CDT was added to MMSE. The same pattern was observed separately for those who were diagnosed with a mild or major neurocognitive disorder. Conclusion: Patients’ cognitive deficits might be more evident when measured by the TYM-TR compared to the MMSE.

Background The Clock Drawing Test (CDT) and Rey–Osterrieth Complex Figure Test (RCFT) are widely used as a part of neuropsychological test batteries to assess cognitive function. Our objective was to confirm the prediction accuracies of the RCFT-copy and CDT for cognitive impairment (CI) using convolutional neural network algorithms as a screening tool. Methods The CDT and RCFT-copy data were obtained from patients aged 60–80 years who had more than 6 years of education. In total, 747 CDT and 980 RCFT-copy figures were utilized. Convolutional neural network algorithms using TensorFlow (ver. 2.3.0) on the Colab cloud platform (www.colab.research.google.com) were used for preprocessing and modeling. We measured the prediction accuracy of each drawing test 10 times using this dataset with the following classes: normal cognition (NC) vs. mildly impaired cognition (MI), NC vs. severely impaired cognition (SI), and NC vs. CI (MI + SI). Results The accuracy of the CDT was better for differentiating MI (CDT, 78.04 ± 2.75; RCFT-copy, not being trained) and SI from NC (CDT, 91.45 ± 0.83; RCFT-copy, 90.27 ± 1.52); however, the RCFT-copy was better at predicting CI (CDT, 77.37 ± 1.77; RCFT, 83.52 ± 1.41). The accuracy for a 3-way classification (NC vs. MI vs. SI) was approximately 71% for both tests; no significant difference was found between them. Conclusions The two drawing tests showed good performance for predicting severe impairment of cognition; however, a drawing test alone is not enough to predict overall CI. There are some limitations to our study: the sample size was small, all the participants did not perform both the CDT and RCFT-copy, and only the copy condition of the RCFT was used. Algorithms involving memory performance and longitudinal changes are worth future exploration. These results may contribute to improved home-based healthcare delivery.

To evaluate the predictability of progression of cognitive impairment to dementia using qualitative clock drawing test (CDT) scores, we administered both the CDT using Cahn et al.’s qualitative scoring system and the Mini-Mental State Examination (MMSE) to assess cognitive function in non-demented older individuals attending a memory clinic at a university hospital. Patients visiting the clinic for assessment of cognitive function between January 2015 and December 2019 were enrolled, and only those who were diagnosed as not having dementia at the time of initial assessment completed a follow-up assessment at 1 y (n = 163). To examine any association of qualitative CDT score with progression to dementia, multiple logistic regression analysis was conducted with the change in diagnosis from non-dementia to dementia at 1 y as the dependent variable. A total of 26 participants (16.0%) were diagnosed as having converted to dementia. Multiple logistic regression analysis revealed that both the qualitative CDT score using Cahn et al.’s scoring system and the existence of conceptual deficits were significantly associated with progression to dementia at 1 y after initial assessment of cognitive function, irrespective of the MMSE score, among non-demented older individuals. The CDT may be a useful predictor of progression to dementia in primary care settings.

Background: Differentiating mild cognitive impairment (MCI) from subjective cognitive decline (SCD) is important because of the higher progression rate to dementia for MCI and when considering future disease-modifying drugs that will have treatment indications at the MCI stage. Objective: We examined if the two most widely-used cognitive tests, the Mini-Mental State Examination (MMSE) and clock-drawing test (CDT), and a test of attention/executive function (AQT) accurately can differentiate MCI from SCD. Methods: We included 466 consecutively recruited non-demented patients with cognitive complaints from the BioFINDER study who had been referred to memory clinics, predominantly from primary care. They were classified as MCI (n = 258) or SCD (n = 208) after thorough neuropsychological assessments. The accuracy of MMSE, CDT, and AQT for identifying MCI was examined both in training and validation samples and in the whole population. Results: As a single test, MMSE had the highest accuracy (sensitivity 73%, specificity 60%). The best combination of two tests was MMSE 91 seconds (sensitivity 56%, specificity 78%), but in logistic regression models, their AUC (0.76) was not significantly better than MMSE alone (AUC 0.75). CDT and AQT performed significantly worse (AUC 0.71; p

Background: Dementia is a collective term for several diseases that affect memory, other cognitive abilities, and behavior. These diseases can seriously interfere with people’s ability of daily living. This is not a normal phenomenon of aging. With the increasing prevalence of dementia in the elderly, the importance of dementia as a comorbidity of hypertension is increasing. However, several questions regarding the link between hypertension and dementia remain unresolved. This study aimed to determine Orientation-Memory-Concentration-Test (OMCT) can be used to assess cognitive function in the elderly as an early step in the early detection of dementia. Subjects and Method: This was a comparative study using a case-control design. The study was conducted in Jetis Sub-District, Yogyakarta from September 2019 to June 2020. A total sample of 110 of elderly was divided into two groups 42 elderly (case), and 68 elderly (control) selected by consecutive sampling using the Mini-Mental State Examination (MMSE), Clock-Drawing Test (CDT) and Orientation-Memory-Concentration Test (OMCT). The dependent variables were the sensitivity and specificity level of the OMCT instrument while the scores of the MMSE. The independent variable was CDT instruments. The collected data will then be processed by diagnostic analysis followed by analysis of ROC and Youden’s index to determine the optimal cut off. Respondents are categorized as having impaired cognitive function if the MMSE (cut off ≤ 24) or CDT (cut off 11) it has a sensitivity (29%) and specificity (97%) to the combination of MMSE and CDT. In populations with hypertension OMCT (cut off> 2.5) has sensitivity (68%) with specificity (46%). In a population without hypertension OMCT (cut off> 7) has a sensitivity (55%) and specificity (90%) to the combination of MMSE and CDT. Conclusion: OMCT can be used as a screening tool for cognitive dysfunction in older people with hypertension because of its short duration, ease of use, and can be used in patients with visual impairments. Keywords: Dementia, cognitive dysfunction, OMCT, 6-CIT. Correspondence: Darren Eduardo William. School of medicine Universitas Kristen Duta Wacana, Yogyakarta. Jl. Dr. Wahidin Sudirohusodo 5-25 Yogyakarta 55224, Indonesia. Email: Darreneduardowilliam@gmail.com. Mobile: 0813-4136-9999 DOI: https://doi.org/10.26911/the7thicph.05.17

Objective The popular clock drawing test (CDT) is easy to administer, acceptable to patients, and has excellent psychometric properties. Although it has been used primarily as a cognitive screening test, many studies have attempted to establish the CDT's ability to localize specific brain lesions or pathology. This systematic review aimed to summarize the evidence on the neuroanatomical correlates of the CDT. Methods Using PRISMA guidelines, the authors systematically reviewed the evidence on neuroanatomical correlates of clock drawing by a systematic search in six databases (Pubmed, CINHL, PsychINFO, HealthStar, Embase, and Web of Science) until January 2018. Studies were included if they reported CDT correlations with anatomical brain lesions documented by neuroimaging. Results Forty-five papers met inclusion criteria. Thirty-one studies identified distinct areas of neuroanatomical correlates of CDT utilizing different scoring methods and imaging techniques. Nine articles reported on the degree of white matter hyperintensities that correlated with lower scores on CDT and the severity of cognitive deficits. Five articles focused on postacute cerebrovascular accidents correlated with CDT performance. A variety of different anatomical lesions, located in all areas of the brain, were associated with abnormalities on the CDT. Conclusions The CDT, regardless of scoring method and population studied, was not associated with any consistent, specific brain localization. This systematic review supports the use of the CDT as a cognitive screening test rather than a method of localizing brain lesions.

Introduction. The Clock Drawing Test (CDT) is a widely used instrument for identifying neurocognitive disorders (NCDs) in older adults. However, there is insufficient evidence to determine the best scoring method, since current quantitative methods involve the assignment of numerical values, while qualitative ones do not allow for objectivity in the diagnosis. Parsey and Schmitter-Edgecombe (2011) proposed a scoring scheme which, in addition to providing a score of the patient’s performance, permits error analysis, thereby making it possible to identify potential underlying cognitive difficulties. Objective. The purpose of this study was to validate the CDT scoring scheme proposed by Parsey and Schmitter-Edgecombe (2011) for screening for NCDs in Mexican older adults. Method. There were 167 participants: 58 cognitively healthy subjects (CH), 52 with mild neurocognitive disorder (mild-NCD), and 57 with major neurocognitive disorder (major-NCD).The CDT scoring method was compared with the Mini-Mental State Examination (MMSE) and the Montreal Cognitive Assessment in Spanish (MoCA-S). Inter- and intra-observer reliability and construct validity were determined and the sensitivity and specificity of this method were calculated. Results. The  age was 75 years (SD ± 8 years) and the  educational attainment was 10.7 years (SD ± 5.2 years). Internal reliability was .750, with an intraclass correlation coefficient of .774. The cut-off point for the CDT in mild-NCD was 14 points (sensitivity: 40%, specificity: 70%) and 12 points for major-NCD (sensitivity: 90%, specificity: 95%).The most frequent errors in the CDT were: graphic, conceptual, spatial, and/or planning difficulties. Discussion and conclusion. This method makes it possibly to quickly and easily explore the cognitive status of the patient. It contains ideal psychometric properties for the detection of patients with major-NCD, in addition to offering the possibility of analyzing performance errors and underlying cognitive difficulties.

Background: Epilepsy is one of the causing factors of cognitive impairment which affects the patient’s quality of life. The most critical risk factor for cognitive impairment in epilepsy patients is the onset of seizure. Performing detection of cognitive impairment in those patients is crucial. Clock Drawing Test (CDT) is a validated instrument for the detection of cognitive impairment in epilepsy patients. Objective: This study was aimed to investigate the effect of the onset of seizure on CDT score in epilepsy patients. Methods: This study was a cross-sectional study involving 64 epilepsy patients of Mutiara Sukma Mental Hospital, West Nusa Tenggara, who met the inclusion but not exclusion criteria. The clinical and demographic characteristics data collected in this study were age, gender, type of seizure, etiology, length of education, duration of treatment, and antiepileptic drugs (AED). Cognitive function evaluation has been done by using the CDT instrument. Analysis of the effect of the beginning of seizure on CDT score was carried out by observing the influence of the clinical and demographic characteristics data. Results: There was a significant difference between the onset of seizure on CDT score (p0.05). Conclusion: The onset of the seizure in epilepsy patients affect CDT score. This effect might be attributed to etiology and age of epilepsy patients.

Aim Despite the widespread use of the clock-drawing test (CDT), normative data and information regarding the influence of sociodemographic factors on test performance by adult and elderly Israeli Arabs are lacking. The current study aimed to establish normative data for this population group by exploring the impact of sociodemographic factors such as age, education, and gender on CDT performance. In addition, this study examined the association between CDT performance and Mini-Mental State Examination (MMSE) scores. Methods The sample consisted of 295 community-dwelling healthy adult and elderly Israeli Arabs, aged 20-86 years, with a MMSE score ≥24. The MMSE and the CDT were administered to participants. Results Statistical analyses revealed that age had a negative effect on CDT performance, which was most pronounced in the 60-86 age group, but education and occupation (academic vs non-academic) had a positive effect. Gender and place of residence (urban vs rural) had no effect. CDT performance predicted the MMSE score. Conclusions The present study provides preliminary normative data on adult and elderly Israeli Arabs. The CDT appears to be applicable to Israeli Arabs, while the normative data might help interpret cognitive function results in this population.