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Background: Atrial fibrillation (AF) is the most common sustained atrial arrhythmia. Accurate detection of the timing and possibility of AF termination is vital for optimizing rhythm and rate control strategies. The present study evaluated whether the ventricular response (VR) in AF offers a distinctive electrocardiographic indicator for predicting AF termination. Methods: Patients experiencing sustained paroxysmal AF for more than 3 h were observed using 24‐h ambulatory Holter monitoring. VR within 5 min before AF termination (VR 0–5 min, BAFT) was compared with VR observed during the 60th to 65th min (VR 60–65 min, BAFT) and the 120th to 125th min (VR 120–125 min, BAFT) before AF termination. Maximum and minimum VRs were calculated on the basis of the average of the highest and lowest VRs across 10 consecutive heartbeats. Results: Data from 37 episodes of paroxysmal AF revealed that the minimum VR0–5 min, BAFT (64 ± 20 bpm) was significantly faster than both the minimum VR120–125 min, BAFT (56 ± 15 bpm) and the minimum VR60–65 min, BAFT (57 ± 16 bpm, p <.05). Similarly, the maximum VR0–5 min, BAFT (158 ± 49 bpm) was significantly faster than the maximum VR120–125 min, BAFT (148 ± 45 bpm, p <.05). In the daytime, the minimum VR0–5 min, BAFT (66 ± 20 bpm) was significantly faster than both the minimum VR60–65 min, BAFT (58 ± 17 bpm) and minimum VR120–125 min, BAFT (57 ± 15 bpm, p <.05). However, the mean and maximum VR0–5 min, BAFT in the daytime were similar to the mean and maximum VR120–125 min in the daytime, respectively. At night, the minimum, mean, and maximum VR0–5 min, BAFT were similar to the minimum, mean, and maximum VR120–125 min, respectively. Conclusions: Elevated VR rates during AF episodes may be predictors for the termination of AF, especially during the daytime and in patients with nondilated left atria. These findings may guide the development of clinical approaches to rhythm control in AF. [ABSTRACT FROM AUTHOR]

The traditional biomedical care approach has been unsatisfactory to meet the complex needs of seniors with long‐term multimorbidity and irreversible disability, particularly for those living in residential LTC facilities. This study aimed to develop and evaluate the effectiveness of an 8‐week biopsychosocial‐spiritual (BPS‐S) group intervention with the attempt to enhance quality of life (QoL) and meaning in life among senior residents with disability. This single‐blind randomized controlled trail was conducted in eight residential LTC facilities. The primary outcome, 'participants' overall and subdomain QoL', and the secondary outcome, 'meaning in life', were repeatedly assessed, including four time points: before, mid‐ and post‐intervention, and at a 1‐month follow‐up. A generalized linear mixed model (GLMM) was used to assess between‐group differences over time. The post‐intervention differences indicated significant higher improvement on senior residents' overall and all 4 domains of QoL, as well as their meaning in life, between the baseline and both times of post‐intervention and 1‐month follow‐up. On the other hand, participants' family QoL have improved immediately in the midst of intervention. This study provides preliminary evidence to support the feasibility and effectiveness of an 8‐week BPS‐S group therapy. We recommend the BPS‐S be integrated into routine institutional care activities to help maximize senior residents' own capacity for self‐healing, achieve a state of harmonious balance between body, mind, social and spiritual relationships; and in turn, enhance holistic health of this group. [ABSTRACT FROM AUTHOR]

Background: Elderly homecare service users may reduce their level of social participation and interpersonal interactions due to physiological loss, which may lead to loneliness and depression over the years. However, there is a lack of research on loneliness among older people who use homecare services. The purpose of this study was to examine the factors influencing loneliness among older people using homecare services. Methods: This is a longitudinal study conducted in communities in Central Taiwan, and data were collected using a structured questionnaire. The questionnaire was first administered as a pre‐test to obtain baseline information about the participants, and the same questionnaire was administered as a post‐test after 6 months to follow‐up. The pre‐ and post‐test questionnaires included five sections, that is, participant demographics, Brief Symptom Rating Scale, Interpersonal Interaction Scale (IIS), Frenchay Activities Index, and UCLA Loneliness Scale (UCLA). Results: A total of 178 participants were recruited in this study. Results indicated that gender, whether participants eat alone or with others at dinner, social media use, perceived economic status, and IIS score were significantly correlated with the loneliness score on the UCLA. Furthermore, there was a significant increase in the loneliness score among male participants in the low loneliness group from baseline to 6 months follow‐up. Conclusions: Gender, presence of others at dinner, social media use, perceived economic status, and interpersonal interaction skills are significant factors that influence loneliness among older people using homecare services. Men tend to experience higher levels of loneliness over time. [ABSTRACT FROM AUTHOR]

Virtual reality (VR) can promote design performance, and may generate a high cognitive load and affect creative design thinking as well. In order to examine the effect of VR application on cognitive load and engineering design creativity, this study recruited 81 eighth‐grade students as participants and employed a non‐equivalent‐groups quasi‐experimental design to examine how VR application influences creativity components and creative performance. A creativity component scale (creative motivation, creative thinking, and professional cognition), a measurement of creative performance, and a cognitive load scale were used to collect data. The study also investigated the ability of VR application to predict creativity components and creative performance, using cognitive load as the mediator. The conclusions are as follows: (1) VR application had marked effects on professional cognition and creative motivation but no effect on creative thinking skills. (2) VR application had marked effects on the novelty and usefulness aspects of creative performance, particularly with respect to usefulness. (3) VR application had marked effects on extraneous and germane cognitive load, but no influence on intrinsic cognitive load, and (4) Both VR application and cognitive load were able to predict creativity components and creative performance. Their abilities to predict creative performance approached an acceptable level. Nevertheless, VR application had no effect on general creative thinking skills; therefore, other teaching strategies are needed to strengthen creative thinking. Lay Description: What is already known about this topicVirtual reality (VR) can transmit complex knowledge.Virtual reality (VR) can promote design performance.What this paper addsInfluence of VR application on creativity components and creative performance.Ability of VR application and cognitive load to predict creativity components.Ability of VR application and cognitive load to predict creative performance.Implications for practice and/or policyUsing VR teaching to improve learning effects and creativity in high‐risk, expensive, and inaccessible learning fields.Using VR teaching to practice repeatedly, and facilitate basic understanding of the application. [ABSTRACT FROM AUTHOR]

This two‐stage study aimed to develop and validate a paediatric abusive head trauma (AHT) awareness questionnaire for healthcare professionals. In stage one, an item pool was created for the AHT awareness questionnaire. Four experts assessed the content validity. Test–retest reliability and internal consistency were examined using a pilot study of 24 healthcare professionals. In stage two, 302 healthcare professionals from a medical centre in southern Taiwan were recruited to establish the questionnaire's psychometric properties. The final version of the questionnaire comprised 81 items, including demographics, attitudes towards childrearing and four sub‐concepts on AHT awareness (infant crying, soothing skills, clinical manifestations and consequences of AHT, and risk factors of AHT). The content validity of the questionnaire was satisfactory with a score of 0.91 to 1.0 for the scale content validity index. The test–retest reliability was 0.51–0.71. Cronbach's alphas for the final sample were 0.52–0.93 for the four subscales. Exploratory factor analysis extracted two factors as risk factors of AHT with a total explained variance of 55.9 per cent. This questionnaire is useful in understanding AHT awareness with identified aspects among healthcare professionals and other professionals working in child protection fields. Items and subscales of the AHT awareness questionnaire could act as a reference guide for future training programmes. 'This two‐stage study aimed to develop and validate a paediatric abusive head trauma (AHT) awareness questionnaire for healthcare professionals' Key Practitioner Messages: We developed and validated a questionnaire to assess healthcare professionals' awareness of paediatric AHT.This is the first instrument developed to measure healthcare professionals' awareness of paediatric AHT with acceptable psychometric properties for use in Taiwan.The questionnaire can be used to understand healthcare professionals' awareness of paediatric AHT.This questionnaire may also be used to explore other professionals' awareness of paediatric AHT and to design related education programmes. [ABSTRACT FROM AUTHOR]

Objectives To assess the relationship between hemoglobin concentration and cause-specific mortality. Design Cohort study. Setting Data from the government-sponsored Annual Geriatric Health Examination Program. Participants Community-dwelling Taipei citizens aged 65 and older followed up between 2006 and 2010 (N = 77,532). Measurements Mortality was determined by matching participants' medical records with national death files. Cox proportional hazards regression models were used to evaluate the relationship between hemoglobin concentration (World Health Organization ( WHO)-defined anemia and 7 hemoglobin concentrations) and cause-specific mortality. Results The mortality risk of WHO-defined anemia increased substantially in both sexes for all-cause and cancer mortalities (men, hazard ratio ( HR) = 1.86, 95% confidence interval ( CI) = 1.71-2.02 for all-cause mortality; HR = 1.94, 95% CI = 1.69-2.22 for cancer mortality; for women, HR = 1.63, 95% CI = 1.43-1.86 for all-cause mortality; HR = 1.74, 95% CI = 1.38-2.19 for cancer mortality). Men with hemoglobin concentrations of 15.0 to 15.9 g/ dL and women with hemoglobin concentrations of 13.0 to 13.9 g/ dL had the lowest risks of all-cause, cardiovascular, and cancer mortality. Risks of all-cause and cancer mortality increased significantly when hemoglobin concentrations were less than 14 g/ dL in men and less than 12 g/ dL in women. Even mild anemia (11.0-11.9 g/ dL) was associated with greater mortality risk. Stratification according to age, body mass index, estimated glomerular filtration rate, and presence of comorbidities did not lead to any substantial changes. Conclusion Hemoglobin concentrations associated with optimal survival in older adults were identified and additional data provided regarding the relationship between hemoglobin concentrations and cause-specific mortality risks in older adults. [ABSTRACT FROM AUTHOR]

Objectives To estimate the all-cause, cardiovascular, and cancer mortality risks associated with serum uric acid levels in elderly adults. Design Cohort study. Setting The Annual Geriatric Health Examination Program database from 2006 to 2010. Paticipants Community-dwelling Taipei citizens aged 65 and older (N = 77,541). Measurements Stratified according to sex, serum uric acid levels were analyzed in quartiles and as normal versus high categories. Mortality was determined by matching cohort identifications with national death files. Results Men had significantly higher uric acid levels than women ( P < .001), and mean levels increased with age ( P < .001). Serum uric acid levels (normal vs high) were an independent risk factor for all-cause and cardiovascular mortality in men and women, with the strongest association found for cardiovascular mortality. The association between serum uric acid levels and cardiovascular mortality was independent of other cardiovascular risk factors such as hypertension, diabetes mellitus, hyperlipidemia, and glomerular filtration rate levels. When levels were analyzed as quartiles, men with levels in the second quartile had the lowest hazard ratios for all-cause and cardiovascular mortality. Conclusion High serum uric acid levels are associated with greater risk of all-cause and cardiovascular mortality but not cancer mortality in elderly adults. Further studies are warranted to investigate the prognostic implications and potential utility in the monitoring of therapy. [ABSTRACT FROM AUTHOR]

Group buying is a relatively new online consumption practice. Consumers negotiate product or service prices with businesses to obtain low prices or an increased number of products. This study investigates factors influencing online group-buying intention from a conformity perspective. An online survey is used to sample 650 online group buyers in Taiwan. Structural Equation Modelling ( SEM) is applied to examine the hypotheses within the theoretical framework. Analytical results indicate that social factors (online recommendations, media recommendations, and personal recommendations) positively affect social influence and online group-buying intention. Individual factors (compliance and attention-to-social-comparison-information) positively affect social influence and conformity. Psychological factors (financial risk, performance risk, and social risk) negatively affect online group-buying intention, and are positively correlated with social influence and conformity. Furthermore, social influence (informational influence and normative influence) are positively correlated with conformity and online group-buying intention. Social influence and conformity are positively correlated with online group-buying intention. Finally, implications of analytical findings are discussed. [ABSTRACT FROM AUTHOR]

The aim of this study was to test a causal model of the predictors of agitation among 405 nursing home residents in Taiwan with varying degrees of cognitive impairment. Chart review and behavioral observations were used to assess residents' physical and psychosocial condition. The final version of the model had a good fit. Cognitive function and depression had direct effects on agitation, and pain and functional ability had indirect effects on agitation via depression. Additionally, cognitive function and pain influenced functional ability directly, which in turn influenced depression and ultimately influenced agitation. The results suggest that effective management of agitation in demented residents requires identifying the needs underlying the behavior rather than directly treating the behavior itself. © 2014 Wiley Periodicals, Inc. [ABSTRACT FROM AUTHOR]

Objective Germinal center kinase-like kinase (GLK; also called MAPKKKK-3) activates protein kinase Cθ (PKCθ) during T cell activation and controls autoimmunity in lupus patients. Intracellular kinases are involved in the pathogenesis of rheumatoid arthritis (RA). We undertook this study to determine the role of GLK in RA. Methods The severity of collagen-induced arthritis (CIA) was studied in GLK-deficient mice. Expression levels of GLK from RA patients were determined by Western blotting, flow cytometry, real-time polymerase chain reaction, and immunohistochemical staining. Localization of GLK in T cells was identified by confocal microscopy. RA disease activity was assessed using the Disease Activity Score in 28 joints. Results GLK-deficient mice displayed impaired CIA development and decreased inflammatory cytokine levels. Local T cell infiltration and collagen restimulation responses were impaired by GLK deficiency. RA patients showed significantly higher GLK protein and messenger RNA levels in peripheral blood T cells than did healthy controls. GLK-overexpressing T cells in synovial fluid and synovial tissue samples from RA patients were increased compared with those from osteoarthritis patients. Confocal microscopy and flow cytometry showed that GLK colocalized and coexisted with phosphorylated PKCθ in T cells from RA patients. Frequencies of GLK-expressing T cells were significantly correlated with RA disease activity. Conclusion GLK overexpression in T cells contributes to the pathogenesis of RA, indicating that GLK is a novel biomarker for autoimmune disease severity and a potential therapeutic target for RA. [ABSTRACT FROM AUTHOR]

Background: Randomized prevention trials provide a unique opportunity to test hypotheses about the interaction of genetic predispositions with contextual processes to create variations in phenotypes over time. Methods: Using two longitudinal, randomized prevention trials, molecular genetic and alcohol use outcome data were gathered from more than 900 youths to determine whether prevention program participation would, across 2 years, moderate genetic risk for increased alcohol use conferred by the dopaminergic and GABAergic systems. Results: We found that (a) variance in dopaminergic ( DRD2, DRD4, ANKK1) and GABAergic ( GABRG1, GABRA2) genes forecast increases in alcohol use across 2 years, and (b) youths at genetic risk who were assigned to the control condition displayed greater increases in alcohol use across 2 years than did youths at genetic risk who were assigned to the prevention condition or youths without genetic risk who were assigned to either condition. Conclusions: This study is unique in combining data from two large prevention trials to test hypotheses regarding genetic main effects and gene × prevention interactions. Focusing on gene systems purported to confer risk for alcohol use and abuse, the study demonstrated that participation in efficacious prevention programs can moderate genetic risk. The results also support the differential susceptibility hypothesis that some youths, for genetic reasons, are more susceptible than others to both positive and negative contextual influences. [ABSTRACT FROM AUTHOR]

A letter to the editor is presented which is concerned with a nationwide population based study in Taiwan that was concerned with alendronate and the risk of esophageal cancer.

Objective Psoriasis is associated with ischemic heart disease (IHD). Results of prior studies have suggested that methotrexate (MTX) may improve vascular disease in patients with psoriasis and rheumatoid arthritis. The aim of this study was to assess the risk of new-onset IHDs in psoriasis patients, comparing those taking MTX with those taking other nonbiologic antipsoriatic drugs. Methods In this retrospective cohort study, we utilized claims data from the National Health Insurance Research Database of Taiwan to identify 179,200 subjects who had received a diagnosis of psoriasis, with or without psoriatic arthritis, on at least 3 visits. The risk of hospitalization for new-onset IHD was compared between psoriasis patients taking MTX monotherapy (n = 6,578; MTX case cohort) and psoriasis patients taking other nonbiologic antipsoriatic drugs (n = 5,471; reference control cohort) between January 1996 and December 2008. Additional adjustments were made for cardiovascular risk factors, number of hospital visits, Charlson comorbidity score, and use of other antiinflammatory drugs. Results The incidence rates of IHD were 666 cases per 100,000 person-years in the MTX case cohort and 830 cases per 100,000 person-years in the reference control cohort (unadjusted P = 0.027). Increasing age, male sex, presence of hypertension, presence of diabetes, Charlson comorbidity score, and use of phototherapies were independent risk factors for hospitalization related to a new IHD in the study cohorts. However, the multivariate-adjusted hazard ratio for IHD-related hospitalizations among patients receiving MTX, in comparison with those receiving other nonbiologic antipsoriatic drugs, was 0.97 (95% confidence interval 0.79-1.19), after adjustment for age, sex, comorbidity score, number of hospital visits, and other antiinflammatory treatments for psoriasis. Conclusion In patients with psoriasis with or without coexisting psoriatic arthritis, the adjusted risk of hospitalization for an IHD among individuals receiving MTX was comparable with that among individuals receiving other nonbiologic antipsoriatic drugs. [ABSTRACT FROM AUTHOR]