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Evaluation of Socio-demographic Factors and Comorbidities in Adult Hemophilia Patients

Purpose: The association between socio-demographic factors and hemophilia status and the prevalence of comorbidities were evaluated. Material and Methods: Patients with hemophilia A (n=111) and B (n=24) who were filled a questionnaire form about their sociodemographic factors were included in our study. Factor and inhibitor levels, comorbidities, factor replacement therapies, hemophilic arthropathy, viral status and annual bleeding episodes were recorded. Results: Median age was 39 years in 135 hemophilia patients and 63.1 % of all the patients had severe hemophilia which was significantly higher among hemophilia A patients (p=0.002). Most of the patients (74.8%) were treated with prophylactic factor replacement therapy. Inhibitor status was positive in 8.9% of all patients. Unemployment rate was found 33.3%. Annual bleeding episodes were higher in patients who had a job. Most of the patients (60 %) were graduated from at least high school. The prevalence of cardiovascular disease, hypertension, diabetes mellitus and obesity were 6.7%; 17.8%, 13.3%, 11.9% respectively. Although there is no association between the obesity and annual bleeding episodes, right ankle was the most affected joint in overweight/obese patients. Conclusion: Age-related comorbidities and the relation of hemophilia status and social life are needed to be more investigated.

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Item Analysis in Multiple Choice Questions: A Study on Question Difficulty and Authors’ Evaluation

Introduction: Multiple choice questions (MCQs) are widely used in medical education. Difficulty Index (DIF I), Discrimination Index (DI), and Distractor Efficiency (DE) are the most commonly used item analyses. MCQ authors should anticipate the possible difficulty level in writing their questions and carefully arrange distractors. This study aims to evaluate the quality of MCQ and the predictions of MCQ authors about the difficulty levels of their questions. Methods: In this study, the DIF I, DI and DE values of 688 MCQs in the exams held in the first year of the 2021-2022 academic year of Dokuz Eylül University Faculty of Medicine were investigated. The effect of the number of Non-Functional Distractors (NFD) on DIF I and DI, and the compliance between the DIF I predictions of the question authors and the actual values was evaluated. Results: DIF I mean was 0.57±0.21, and 47.5% was at the ideal difficulty level. There was a significant difference between the estimated and the actual DIF I (p=0.002). The DI average was 0.31 ± 0.17, and the discrimination level of 43.6% was excellent. 36.8% of distractors were NFD. MCQ's difficulty and discriminatory ability were significantly different according to the number of NFDs (p=0.000 for all). Discussion: It was determined that the number of NFDs significantly affected difficulty and discriminatory ability. There was a difference between the estimates of the difficulty and the actual values. Reducing the number of options in MCQs and being more careful when crafting questions can improve the quality of the questions.

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Decision Tree-Based Classification Approach to Discover Factors Affecting Vitamin D Level with Machine Learning

Purpose: Vitamin D level is emphasized as an important biomarker in determining risk factors for different diseases. Vitamin D is an important vitamin for human health and its deficiency is associated with serious health problems. Therefore, it is of great importance to detect vitamin D deficiency, which can be easily prevented and treated. The possible relationship between vitamin D deficiency and musculoskeletal pain, osteoporosis, diabetes mellitus, hypertension is frequently discussed in researches. In this research, it is aimed to analyze the factors in determining the vitamin D level and the decision rules related to it. Methods: A descriptive framework based on one of the machine learning techniques, that is decision tree is followed. The data used to create the decision rules were obtained from volunteers between the ages of 18-85 who applied to Izmir Katip Çelebi University Atatürk Training and Research Hospital Infectious Diseases and Family Medicine Polyclinics and agreed to participate in the study between 01.03.2017 and 01.09.2017. Results: It was observed that age, gender and laboratory test values are strong predictors for vitamin D level. As a result of two CART (Classification and Regression Trees) models, %90.47 and %95 predictive accuracies were observed respectively. In the first model, uric acid, age and creatine; in the second model TSH, ALP and smoking(yes) were the most important three biomarkers affecting vitamin D level. Discussion: The collected features give a comprehensive list of variables that have an effect on vitamin D in the dataset under consideration. Important findings of the study include not only the identification of these variables, but also the effective categorization determination procedures. In contrast to previous research, the Age variable is the most influential factor within the scope of this dataset, which includes demographic information on patients and their existing disorders.

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Knowledge and Awareness of Spinal Muscular Atrophy in Pre-Marital Health Screenings: A Cross-Sectional Study

Background and Purpose: Early diagnosis of Spinal Muscular Atrophy (SMA) is crucial. This study assesses the awareness and attitudes toward SMA screening among individuals preparing for marriage. Methods: This cross-sectional study was conducted in three family health centers in the central district of XXX from June to September 2023. A researcher-designed 15-item instrument was utilized to collect demographic data and assess knowledge and attitudes regarding SMA among participants aged 18-65, excluding those with a diagnosis of mental retardation. Results: The study was participated in by 197 individuals, with an average age determined to be 29.45±7.48. The proportion of those supporting the implementation of SMA screening was 84.8% (n=167), while the intention to undergo the test was identified at 72.6% (n=143). A significant relationship was found between the willingness to be tested and variables such as the level of education, absence of disabled close relatives, not considering SMA to be genetically inherited, finding screenings appropriate, the perceived impact of test results on marriage, and the belief that screening could not be conducted after marriage. Conclusion: While most recognized SMA's severity, there's a notable deficit in understanding its preventability, suggesting the need for targeted educational interventions to enhance genetic screening uptake.

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Evaluation of CMV DNA Antigenemia Status in Patients With Allogeneic Bone Marrow Transplant

Purpose: The risk of cytomegalovirus (CMV) reactivation following allogeneic hematopoietic stem cell transplantation (ASCT) reaches 30-50%, and there are numerous diagnostic tests to detect CMV replication. The most common tests used in this group of patients include 65kDa phosphoprotein (pp65) antigenemia immunofluorescence assay and nucleic-acid-based quantitative CMV-DNA polymerase chain reaction (qPCR). Material and Methods: In this study, patients who underwent ASCT and developed CMV positivity from 2009 to 2016 in our hospital were evaluated retrospectively. The study included samples of the same patient with antigenemia and CMV-DNA qPCR test for up to 48 hours. The study aimed to determine the factors affecting CMV DNA antigenemia and compare CMV DNA PCR and pp65 antigenemia immunofluorescence assay. Results: The results of 138 specimens of 39 patients who underwent ASCT were evaluated. The mean value of CMV PCR, which was positive for both tests, was 57.887 copies/ml (70- 1.213.633 copies/ml) and a significant correlation was found between the two tests and the positive samples (p = 0.018). The ROC analysis showed that 322 copies/ml CMV viral load in plasma corresponds to ≥1 antigen-positive cells/200 thousand leukocytes (Sensitivity: 68.5%; Specificity: 31.5%). CMV infection was observed in 32 samples; CMV DNA cut-off values of the reference according to CMV DNA PCR and antigenemia results, compared to the development of CMV infection, presented a significant correlation (p=0.004). Conclusion: Although there is a common agreement between antigenemia and CMV DNA PCR tests, one should keep in mind that the sensitivity of antigenemia test is low especially in the neutropenic period.

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A Turkish-Language Validation and Reliability Study of the Storm Fear Questionnaire (SFQ)

Purpose: The purpose of this study is to determine the validity and reliability of the Turkish-language version of the Storm Fear Questionnaire (SFQ). Material and Methods: The research was completed with 299 individuals. After obtaining sociodemographic information of the participants, Storm Fear Questionnaire, Eco-Anxiety Scale and Severity Measure for Specific Phobia were administered. Exploratory and confirmatory factor analysis was applied to evaluate the scale’s construct validity, while Cronbach's alpha (α) reliability coefficient was used to determine its consistency, and test-retest reliability was employed to determine its stability. Results: Scores from the SFQ scale ranged from 0 to 56, with a mean score of 13.30±11.40. A structure consisting of a single factor with an eigenvalue greater than 1, explaining 59.0% of the total variance emerged from the factor analysis. Factor loadings for the SFQ, the original of which consists of 15 items, ranged between 0.594 and 0.879. One item with a factor loading less than 0.30 was removed from the scale. The Cronbach alpha coefficient of the first test was 0.943. Conclusion: We think that the 14-item scale obtained in this research can be employed as a valid and reliable tool for evaluating storm fear in adults in Türkiye.

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