Medicine
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This repository contains the published and unpublished research of the Faculty of Medicine by the staff members of the faculty
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Item Psychometric properties of the Sinhala version of the Bandura’s exercise selfefficacy scale in women(College of Community Physicians of Sri Lanka, 2024) Herath, D.; Kasturiratne, A.INTRODUCTION Engaging in regular exercise as part of a healthy lifestyle has shown an array of health benefits for many decades. Building confidence in maintaining an exercise routine is essential for success. To support individuals interested in exercise, the availability of appropriate measurement tools is vital. Bandura's Exercise Self-Efficacy Scale (ESE) is an 18- item brief measure that assesses confidence in exercising regularly and is a valuable tool for measuring exercise beliefs. OBJECTIVES To translate and adapt the Banduras ESE scale into Sinhala language and examine its psychometric properties METHODS Data were collected from 225 women who were aged ≥18 years and had an interest in or a reason to watch their weight, in Panadura Medical Officer Health (MOH) Area, Sri Lanka. They were recruited using a purposive sampling method. Standard forward-backward translation was performed to translate the English version of ESE. The construct validity was tested using exploratory factor analysis. Reliability of the scale was determined by Cronbach’s alpha. Data were analysed using SPSS version 22.0. RESULTS Through exploratory factor analysis, 18-item ESE scale showed three factors with eigenvalues ranging from 1.392 to 9.409. The three-factor model explained 70.59% of total variance of the model. All the items in the scale were retained. The reliability of internal consistency, as assessed by Cronbach’s alpha, indicated interpersonal, competing and internal sub factors as 0.92, 0.91 and 0.89 respectively, which were above the threshold level of 0.7. CONCLUSIONS & RECOMMENDATIONS The Sinhala translation of ESE is a reliable and valid scale to assess the level of selfefficacy for exercise among Sinhala-speaking adult women in Sri Lanka.Item Translation, adaptation and validation of the Sinhala Version of Weight Efficacy Lifestyle Questionnaire Short Form (WEL-SF) for women(College of Community Physicians of Sri Lanka, 2023) Herath, D.; Kasturiratne, A.INTRODUCTION: The global obesity burden is rising alarmingly due to unhealthy lifestyle behaviours and environmental factors. To date, prevention and treatment efforts to combat obesity mainly focus on lifestyle modifications through diet and physical activity. Eating self-efficacy has been related to weight loss and is considered a significant predictor of weight loss in an individual. The Weight Efficacy Lifestyle Questionnaire Short Form (WEL-SF) is an American instrument used for research and clinical purposes to measure self-efficacy for controlling eating in specific situations. OBJECTIVES: Translation, cultural adaptation and validation of the WEL-SF. METHODS: A sample of 100 women aged ≥ 18 years who were attempting to reduce their weight through self-monitored non-therapeutic diet control in Panadura Medical Officer of Health (MOH) Area, Sri Lanka was recruited using a purposive sampling method. Data were collected using a self-administered questionnaire with socio-demographic information and Sinhala version of the WEL-SF. The construct validity was evaluated by Exploratory Factor Analysis (EFA) using Principal Component Analysis (PCA), while the reliability of the scale was determined by Cronbach's alpha. RESULTS: The eight-item WEL-SF showed a one-factor solution by EFA. All the items on the scale were retained. The model explained a total variance of 59.35%. The internal consistency of WEL-SF was 0.905 using Cronbach’s alpha. The test-retest reliability of the instrument had a high Spearman's correlation of more than 0.7. CONCLUSIONS & RECOMMENDATIONS: The Sinhala version of WEL-SF for women to assess self-efficacy levels in overeating appears to be psychometrically valid with high reliability. This instrument can be recommended as a screening tool to assess self-efficacy levels in women striving for a healthy weight.Item Prevalence of overweight and obesity among women in two medical officer of health areas in Kalutara district(College of Community Physicians of Sri Lanka, 2023) Herath, D.; Kasturiratne, A.INTRODUCTION: Overweight and obesity are rising burdens in the w orld. Gender disparities in its prevalence are more evident in developing countries compared to developed countries. OBJECTIVES: To determine the prevalence of overweight and obesity among 35-44-year-old women in Bandaragama and Horana Medical Officer of Health (MOH) areas METHODS: This was a community-based descriptive cross-sectional study conducted among 770 women aged 35-44 years residing in two MOH areas of Kalutara District for the l ast six months at the time of data collection. Overweight/obesity were assessed on the Asian cutoff values recommended by the WHO based on body mass index (BMI). The prevalence was estimated with 95% confidence interval (CI). RESULTS: The prevalence of overweight in Bandaragama and Horana MOH areas was 41.35% (95% CI: 37.9, 44.81) and 39.7% (95% CI: 36.3, 43.2), respectively, while the correspondi ng prevalence of obesity was 36.1% (95% CI: 32.8, 39.6) and 26.6% (95% CI: 16.4, 39.1). CONCLUSIONS & RECOMMENDATIONS: The prevalence of overweight /obesity among women aged 35-44 years was relatively high. Barriers to a healthy lifestyle, women's role in the household and existing service gaps at primary healthcare level should be considered when preventive measures ar e introduced to reduce this burden.