8 results on '"Clinical significance"'
Search Results
2. Minimum Etkili Doz'un Belirlenmesinde Williams Testi İçin Gerekli Örneklem Genişliği.
- Author
-
TEKİNDAL, Mustafa Agah and YAZICI, Ayşe Canan
- Abstract
Objective: The biological activity of a substance may be explored through a series of experiments on increased or decreased doses of such substance. One of the purposes in studies of this sort is the determination of minimum effective dose. Use of appropriate sample size has an indisputable effect on the reliability of the decisions made in studies made for this purpose. This study attempts to provide a summary of sample sizes, in different scenarios, needed by researchers during the use of Williams test by taking into consideration the number of groups in dose-response studies as well as minimal clinically significant difference, standard deviation, and the test's power through asymptotic power analyses. Material and Methods: When Type I error was taken as 0.05, scenarios were determined in different sample sizes for each group (5 to 100 with an increase of 5 at a time) and different numbers of groups (from 3 to 10, with an increase of 1 at a time). Minimal clinically significant difference refers to the difference between the control group and the experimental group. In this instance, when the control group is zero and takes a specific average value, it refers to the difference from the experimental group. In the resent study, such differences are defined from 1 to 10 with an increase of 1 at a time. For the test's power would change when the standard deviation changed, the relevant value was changed in all scenarios from 1 to 10 with an increase of 1 at a time to explore the test's power. Dose-response distributions are skew. In the present study, data were derived from the Poisson distribution with λ= 1 parameter that was determined in accordance with dose-response curves. Results: When changes occurring in the determined scenarios are considered, it can be said, in general, that the significant difference must be set between 1 and 3; and standard deviation must be set between 1 and 2. Conclusion: It is certain that change in the number of groups has quite a big influence on sample size. Researchers may calculate the test's power based on the recommended sample sizes prior to experimental designs. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
3. Investigation of the clinical significance of anti-dense fine speckled 70 (anti-dfs70) autoantibody and determination of accompanying pathologies
- Author
-
Kayra Barut, Ali Duran, Duygu Dağlar, Alev Çetin Duran, and Tıp Fakültesi
- Subjects
Male ,Microbiology (medical) ,medicine.medical_specialty ,Anti-nuclear antibody ,Extractable nuclear antigens ,Gastroenterology ,Autoimmune Diseases ,Autoantibody ,Internal medicine ,medicine ,Humans ,Clinical significance ,Fluorescent Antibody Technique, Indirect ,Adaptor Proteins, Signal Transducing ,Autoantibodies ,Antinükleer Antikorlar ,Otoimmün Hastalıklar ,General Immunology and Microbiology ,biology ,business.industry ,Thyroid ,Cancer ,IIf ,medicine.disease ,Antinuclear Antibodies ,Infectious Diseases ,medicine.anatomical_structure ,Antibodies, Antinuclear ,biology.protein ,Anti-DFS70 Otoantikoru ,Female ,Antibody ,business ,Transcription Factors - Abstract
Duran, Ali (Balikesir Author), Autoantibodies targeting nuclear and cytoplasmic autoantigens are used as markers in the diagnosis and classification of systemic autoimmune rheumatic diseases (SARD). The dense fine speckled (DFS) pattern is characterized by the fine-granular fluorescence of the nuclei in the interphase and the metaphase chromatin. DFS70 antibodies have been reported in healthy individuals, various autoimmune disorders, infection, cancer and inflammatory conditions. But there is still lack of information about its clinical significance. This study aimed to investigate the clinical significance of anti-DFS70 autoantibodies and the determination of accompanying pathologies. A total of 5710 serum samples routinely requested for ANA screening were tested between 2017 and 2019. Antinuclear antibody (ANA) and dsDNA were performed by indirect immunofluorescence method (IIF) (Euroimmun, Germany). Immunoblot (IB) method was used for the extractable nuclear antigen profile (ENA) (Euroimmun, Germany). Demographic and clinical data, were investigated from the medical records. Among 5710 samples tested for ANA, 23.7% were ANA positive by IIF. Mean age of the patients were 47.9 and 79.5% were female. Only 8.1% of the study group had SARD. The frequency of DFS pattern by ANA-IIF was 6.0% (342/5710), (mean age ± SD= 44.4 ± 16.7, 88% female). DFS70 pattern-positive patients were sub-grouped according to their diagnosis. SARD were detected 10.8% (mean age ± SD= 55.12 ± 14.10) in DFS70 pattern positive patient group (RA 6.1%, SS 2.6%, SLE 0.9%, SSc 0.6%, UCTD 0.6%). Autoantibodies accompanying anti-DFS70 antibody were determined as Ro-52, SS-A, nucleosome, histone, AMA-M2, dsDNA, respectively. Non-SARD diseases were determined in 89.2% of the patients with positive DFS70 pattern. Non-SARD diseases were detected as musculoskeletal complaints (47.4%), other rheumatic diseases like fibromyalgia (14.3%), dermatological diseases (9.4%), gastrointestinal system diseases (5.6%), hematological disorders (3.8%), thyroid /parathyroid diseases (3.5%), allergic diseases (2.3%), neurological diseases (2.3%) and neoplasia (breast cancer) (0.6%). The anti-DFS70 autoantibody is widely used to exclude the diagnosis of SARD in the absence of concomitant SARD-related autoantibodies. It has been observed that anti-DFS70 autoantibody may be associated with non-SARD rheumatic diseases and in many diseases (dermatological, gastrointestinal system, hematological, thyroid diseases) related to other systems. Therefore it is essential to evaluate these pathologies in patients positive for anti-DFS70 antibodies., Nükleer ve sitoplazmik otoantijenleri hedefleyen otoantikorlar, sistemik otoimmün romatizmal hastalıkların (SORH) tanı ve sınıflandırılmasında belirteç olarak kullanılmaktadır. Dense fine speckled (DFS) paterni interfaz evresinde nükleusda ve metafaz kromatininde yoğun ince benekli tarzda boyanma gösterir. Anti-DFS70 antikorları sağlıklı kişilerde, çeşitli otoimmün bozukluklarda, enfeksiyonda, kanserde ve enflamatuvar durumlarda bildirilmiş olmakla birlikte klinik önemi hakkında bilgiler hala yetersizdir. Bu çalışmada, anti-DFS70 otoantikorlarının klinik öneminin araştırılması ve eşlik eden patolojilerin belirlenmesi amaçlanmıştır. 2017-2019 yılları arasında rutin ANA taraması için gönderilen toplam 5710 serum örneği test edilmiştir. Örnekler antinükleer antikor (ANA) ve dsDNA indirekt immünfloresan yöntemleri (IIF) (Euroimmun, Almanya) ile çalışılmıştır. Ekstrakte edilebilir nükleer antijen (ENA) profili için immünoblot (IB) yöntemi (Euroimmun, Almanya) kullanılmıştır. Demografik ve klinik veriler, tıbbi kayıtlar incelenerek elde edilmiştir. ANA-IIF ile test edilen 5710 örneğin %23.7’si ANA pozitif bulunmuştur. Hastaların ortalama yaşı 47.9 ve %79.5’i kadın olarak tespit edilmiş ve çalışma grubunun sadece %8.1’inde SORH saptanmıştır. IIF-ANA testine göre DFS70 paterni sıklığı %6.0 (342/5710) olarak belirlenmiştir (Ortalama yaş ± Ss= 44.4 ± 16.7,%88 kadın). DFS70 paterni saptanan hastalar tanılarına göre alt gruplara ayrılmıştır. DFS70 paterni pozitif hasta grubunda %10.8 oranında (ortalama yaş ± Ss= 55.12 ± 14.10) SORH saptanmıştır (RA %6.1, SS %2.6, SLE %0.9, SSc %0.6, UCTD %0.6). Anti-DFS70 antikoruna eşlik eden otoantikorlar sırasıyla Ro-52, SS-A, nükleozom, histon, AMA-M2, dsDNA olarak belirlenmiştir. Anti-DFS70 paterni pozitif hastaların %89.2’sinde SORH dışı hastalıklar saptanmıştır. Kas iskelet sistemi şikayetleri (%47.4), fibromiyalji gibi diğer romatizmal hastalıklar (%14.3), dermatolojik hastalıklar (%9.4), gastrointestinal sistem hastalıkları (%5.6), hematolojik bozukluklar (%3.8), tiroid/paratiroid hastalıkları (%3.5), alerjik hastalıklar (%2.3), nörolojik hastalıklar (%2.3) ve neoplazi (meme kanseri) (%0.6) SORH dışı hastalıklar olarak belirlenmiştir. Anti-DFS70 otoantikoru, eşlik eden SORH ile ilişkili otoantikorların yokluğunda SORH teşhisini dışlamak için yaygın olarak kullanılmaktadır. Anti-DFS70 otoantikorunun SORH dışı romatizmal hastalıklarla ve diğer sistemlerle ilgili birçok hastalıkla (dermatolojik, gastrointestinal sistem, hematolojik, tiroid hastalıkları) ilişkili olabileceği gözlenmiştir. Bu nedenle, anti-DFS70 antikorları pozitif hastalarda bu patolojilerin değerlendirilmesi önemlidir.
- Published
- 2021
4. Ruh sağlığı çalışmalarında klinik anlamlılık
- Author
-
Avşar, Volkan, Avşar, Asiye Şengül, RTEÜ, Eğitim Fakültesi, Eğitim Bilimleri Bölümü, and Avşar, Asiye Şengül
- Subjects
Psikolojik müdahalelerin etkililiği ,Klinik anlamlılık ,Ruh sağlığı çalışmaları ,Clinical significance ,Individual changes ,Mental health studies ,Bireysel değişim ,Effectiveness of psychological interventions - Abstract
Ruh sağlığı alanında hizmet veren uzmanlar, bireylerin ruhsal durumlarına ya da yaşadıkları sorunlara yönelik müdahalelerde bulunmaktadırlar. Bu müdahaleler genellikle terapi, psikoterapi ya da psikolojik danışma adı altında, klinik ortamlarda ve profesyonel bir anlayışla gerçekleştirilmektedir. Klinik olarak yürütülen bu çalışmalarda genellikle, danışanların ön-test ve son-test ölçümleri arasındaki farkın istatistiksel anlamlılığı araştırılmaktadır. Ancak bu farklılık çoğu zaman grup ortalamaları üzerinden hesaplanmakta, bu da bireysel değişimin belirlenmesinde yeterli bulunmamaktadır. Sunulan psikolojik yardım hizmeti sonrasında danışanlarda meydana gelen değişimin klinik olarak anlamlı olup olmadığının değerlendirilmesi önemlidir. Klinik anlamlılık, bireylerin ön-test ile son-test puanlarındaki değişimin klinik açıdan anlamlı olup olmadığını belirlemeye yönelik istatistiksel çalışmalardır. Bu derleme makalesinin amacı; klinik anlamlılığın değerlendirilmesinde yaygın olarak kullanılan çeşitli yöntemleri tanıtmak ve Türkiye’de deneysel çalışmalarda ya da klinik uygulamalarda bireysel test puanlarındaki değişim üzerine odaklanan ruh sağlığı uzmanları veya araştırmacılar için bu yöntemlerin anlaşılmasını kolaylaştırarak kullanımını yaygınlaştırmaktır. Belirlenen amaç doğrultusunda, klinik anlamlılıkla ilgili önemli makaleler incelenmiş ve değerlendirilmiştir. Literatür incelemesinden elde edilen sonuçlara göre, istatistiksel anlamlılık bireylerin klinik anlamda değişiklik gösterdiğini garanti etmemektedir. Özellikle deneysel çalışmalarda ya da klinik ortamlarda yürütülen araştırmalarda bireylerdeki değişimin klinik anlamlılığının değerlendirilip raporlaştırılması gerekli ve önemlidir Experts who work in the field of mental health, make interventions based on moods or the issues that individuals go through. These interventions are usually carried out under the name of therapy, psychotherapy or psychological counseling in clinical environments with a professional manner. Usually in these clinically conducted studies, the statistical significance of the difference between the pre-test and post-test measurements of the clients is analyzed. However, detection of this difference is mostly made considering the group mean, which falls short in the identification of individual changes. It is critical to analyze the clinical significance of the change in clients following the psychological interventions. Clinical significance is the statistical study to determine whether the differences between the pre-test and post-test scores of individuals are clinically significant. The aim of this review article is to introduce various widely used methods of clinical significance, and to expedite the use of these methods making them easier to understand for mental health experts or researchers who focus on the differences between the individual test scores in experimental studies or clinical practices in Turkey. In accordance with the purpose identified, prominent articles regarding clinical significance were studied and evaluated. Based on results from literature review, statistical significance does not guarantee any clinical changes in individuals. It is necessary and crucial to determinate and report the clinical significance of changes in individuals that attend particularly the experimental studies or studies carried out in clinical environments.
- Published
- 2021
5. Etki Büyüklüğü.
- Author
-
Kılıç, Selim
- Subjects
- *
STATISTICAL significance , *MANUSCRIPTS , *READING , *EFFECT sizes (Statistics) , *STATISTICS - Abstract
Statistical significance (p value) is a considerable measure when the manuscripts were reading or interpreting. On the other hand clinical importance, which is important at least as statistical significance, may not consider every time by authors or readers. In this manuscript some information related to an important measure, which indicates clinical importance "effect size concept (ES)", ES calculation and ES interpretation are presented. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
6. İlaca bağlı glukoz ve insülin bozuklukları
- Author
-
Müge Kökümer and Ahmet Özer Şehirli
- Subjects
Drug ,medicine.medical_specialty ,business.industry ,Insulin ,medicine.medical_treatment ,media_common.quotation_subject ,İlaç,diyabet,insülin ,medicine.disease ,Discontinuation ,Drug,diabetes,insulin ,Diabetes mellitus ,Health care ,Medicine ,Clinical significance ,In patient ,Adverse effect ,business ,Psychiatry ,Intensive care medicine ,media_common - Abstract
Medications cure the diseases, but sometimes adverse effects occur and these adverse effects cause new diseases. These drug-induced diseases include drug-induced glucose disorders. The clinical significance of drug-induced diseases ranges from negligible to potentially life-threatening. The studies show that there are a few agents implicated in drug-induced glucose disorders. Particularly in patients at risk, health care providers avoid or minimize administration of suspect drugs and monitor the patients. Patients receiving medications that are known to cause drug induced diseases, should be educated about sings and symptoms and advised to consult the health care providers if they experience these signs and symptoms. In patients with new-onset glucose dysfunction, the suspected drugs should be discontinued, if feasible. If the drug can not be discontinued or if the condition does not resolve after discontinuation, a new cure strategy may be required., İlaçlar hastalıkları tedavi ederken bazı durumlarda çeşitli yan etkiler gösterirler ve bu yan etkiler yeni hastalıkların gelişmesine sebep olabilir. Bu ilaca bağlı hastalıklardan bazıları da ilaca bağlı glukoz bozukluklarıdır. Bu hastalıkların zararlı etkileri önemsiz dereceden yaşamı tehdit eden boyutlar arasında değişebilir. Yapılmış çalışmalarla ilaca bağlı glukoz bozukluklarına neden olan pek çok ilaç tespit edilmiştir. Özellikle risk altındaki hastalarda bu ilaçların kullanımından kaçınılmalı, kullanımı en aza indirilmeli veya kişi gözlem altında tutulmalıdır. Ortaya çıkabilecek hastalığın belirti ve semptomları konusunda hasta eğitilmeli, bu tarz belirti ve semptomlar gördüğünde bir sağlık kuruluşuna başvurması gerektiği söylenmelidir.
- Published
- 2015
7. Incidental findings on electron beam tomography renal angiography in hypertensive patients
- Author
-
Mustafa Şekip Altunkan, Baki Hekimoğlu, and Begüm Demirler Şimşir
- Subjects
0106 biological sciences ,medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,Gallbladder ,Abdominal aorta ,010607 zoology ,General Medicine ,Key words: Incidental findings,renal CT angiography,renovascular hypertension,electron beam tomography ,Renal artery stenosis ,medicine.disease ,urologic and male genital diseases ,01 natural sciences ,Electron beam tomography ,3. Good health ,Renovascular hypertension ,010602 entomology ,medicine.anatomical_structure ,medicine.artery ,Angiography ,medicine ,Clinical significance ,Radiology ,Renal artery ,business - Abstract
To evaluate the prevalence, spectrum, and significance of incidental lesions identified on electron beam tomography (EBT) renal angiography performed to investigate renovascular hypertension. Materials and methods: EBT renal angiography images of 148 cases were evaluated in terms of renal artery variations and renal artery stenosis. Extravascular renal findings, abdominal aorta, iliac artery, liver and gallbladder findings, vertebral lesions, and other intraabdominal organ findings were assessed during the examination. Results: No incidental finding was found in 30 cases (20.2%) in total. The most frequent incidental findings were benign ones without any clinical significance. A total of 13 (8.7%) clinically significant findings were identified. Conclusion: When evaluating renal EBT angiography, a detailed review of other systems as well as target organ assessment is of crucial importance as it may affect patient prognosis.
- Published
- 2014
8. The clinical significance of left- axis deviation in atherosclerotic heart disease
- Author
-
Bursa Üniversitesi/Tıp Fakültesi., Cordan, Jale, and Hünük, Ahmet
- Subjects
Atherosklerotik ,Sol aksis deviasyon ,Heart diseases ,Clinical significance ,Klinik önemi ,Left axis deviation ,Kalb hastalıkları ,Atherosclerotic - Abstract
1- Bu araştırma Atherosklerotik Kalb Hastalığı (myokard infarktüsü) tanısı almış 138 olgu üzerinde yapılmıştır. 2 - Olgulanmızda sol aksisin dağılımı % olarak incelenmiş ve atherosklerotik olgularda sol aksis ensidansı çok yüksek bulunmuştur(% 83,5). 3-Bu olgularda yaş dağılımı da incelenerek, en çok 6 ve 7 ci on yaş içinde ateroskleroza rastlanmıştır. 4 - Sol ahsis deviasyonunun derecesi ile miyokard infarktüsünün lokalizasyonları aratılmış ve sol anterior hemiblok oranının yüksek düzeyde olduğu saptanmıştır.9). 5 - Atherosklerotik kalb hastalıklarında sol aksisin klinik öneminin büyük olduğu sonucuna varılmıştır. 1-This study has been done on 138 cases with the diagnosis of atherosclerotic (Myocardial infarction). 2- The incidence of left axis deviation has been shown in percentage and has been found to be very high in atherosclerotic cases (83,5 %). 3- The distribution of age was determined, atherosclerosis was found mostly in the 6th or 7th decade. 4 - The degree of left axis deviation and the localisation of myocardial infarction was investigated and the left anterior hemi-block was to be very high (19 %). 5- It has been concluded that left axis deviation has a great clinical significance in atherosclerotic heart diseases.
- Published
- 1979
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.