Journal/Magazine Articles

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This collection contains original research articles, review articles and case reports published in local and international peer reviewed journals by the staff members of the Faculty of Medicine

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Author: search.filters.author.Siriwardhana, D.D.Has files: Yes

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    Stakeholders' perspectives on the provision of vocational training for youth with disabilities in Sri Lanka: protocol for a mixed-methods study
    (BMJ Publishing Group Ltd, 2022) Colonne, U.T.; Dharmarathna, I.; Siriwardhana, D.D.; Handy, T.; Gamage, M.H.; Athawuda, N.; Sumanasena, S.P.
    Introduction: The quality and the range of vocational training (VT) courses offered to youth with disabilities (YwD) in low-middle-income countries are underexplored. This protocol describes a study designed to gather perceptions of a range of stakeholders related to the quality and relevance of VT programmes conducted by the Department of Social Services in Sri Lanka. The purpose of this study is to communicate with authorities the ways in which they can improve their services by paying close attention to the needs and recommendations of all stakeholders. Methods and analysis: A parallel mixed-methods study will be conducted at eight vocational training institutes (VTIs). A survey will be conducted with five participant groups; YwD presently enrolled in VTIs (n=358) and their caregivers (n=358), YwD who completed the VT (n=45) and their caregivers (n=45) and educators at VTIs (n=47). The qualitative component includes semi-structured interviews and focus group discussions. The three groups of participants include: educators, caregivers of potential YwD for future VT (6-10 per group) and key informants from state, corporate and non-governmental sectors (a total of 20). Quantitative and qualitative data will be analysed using descriptive and inferential statistics and cross-thematic analysis, respectively. Ethics and dissemination: This study received ethical clearance from the Ethics Review Committee, Faculty of Medicine, University of Kelaniya (Ref. No: P/15/02/2021). All data collection processes will abide by health and safety measures required by the national government. Written informed consent will be obtained from all participants. Results from this research will be disseminated, to local stakeholders and participants, via local and international conferences and publications in peer-reviewed journals.
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    Association between frailty and disability among rural community-dwelling older adults in Sri Lanka: A Cross-sectional study.
    (BMJ Publishing Group Ltd, 2020) Siriwardhana, D.D.; Weerasinghe, M.C.; Rait, G.; Scholes, S.; Walters, K.R.
    OBJECTIVE: We examined the association between frailty and disability in rural community-dwelling older adults in Kegalle district of Sri Lanka. DESIGN: A population-based cross-sectional study. PARTICIPANTS: A total of 746 community-dwelling adults aged ≥60 years. PRIMARY AND SECOUNDARY OUTCOME MEASURES: Frailty was assessed using the Fried phenotype. Disability was operationalised in terms of having one or more activity limitation/s in instrumental activities of daily living (IADL) and basic activities of daily living (BADL). RESULTS: The median age of the sample was (median 68; IQR 64-75) years and 56.7% were female. 15.2% were frail and 48.5% were prefrail. The prevalence of ≥1 IADL limitations was high, 84.4% among frail adults. 38.7% of frail adults reported ≥1 BADL limitations. Over half of frail older adults (58.3%) reported both ≥1 physical and cognitive IADL limitations. Being frail decreased the odds of having no IADL limitations, and was associated with a higher count of IADL limitations. No significant association was found between prefrailty and number of IADL limitations. CONCLUSIONS: The prevalence of ≥1 IADL limitations was high among rural community-dwelling frail older adults. Findings imply the greater support and care required for rural Sri Lankan frail older adults to live independently in the community. KEYWORDS: Asia; Sri Lanka; disability; frail elderly; independent living.
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    Socioeconomic inequality and determinants of postnatal home visits made by public health midwives: An analysis of the Sri Lanka Demographic and Health Survey.
    (Public Library of Science, 2019) Siriwardhana, D.D.; Pathmeswaran, A.; Wickremasinghe, A.R.
    INTRODUCTION:The impact of socioeconomic inequalities on health outcomes and service delivery is increasingly researched globally. This study assessed the overall and sector-wise socioeconomic inequality in postnatal home visits made by Public Health Midwives (PHMs) in Sri Lanka and decomposed the observed socioeconomic inequality into potential determinants. METHODS: Data from the Sri Lanka Demographic and Health Survey (SLDHS) 2006-07 were used. Data were collected from ever-married women who gave birth to their last child in 2001 or later (up to 2007). Whether the PHM visited the home to provide postnatal care within one month of the delivery was the health outcome of interest. Sri Lanka is divided into three sectors (areas) as urban, rural, and estate (plantation) based on the geographical location and the availability of infrastructure facilities. Concentration indices were calculated and concentration curves were plotted to quantify the overall and sector-wise socioeconomic inequality. Decomposition analysis using probit regression was performed to estimate the contribution of potential determinants to the observed socioeconomic inequality. RESULTS:Overall, 83.0% of women were visited by a PHM within one month of the delivery. The highest number of home visits was reported in the rural sector (84.5%) and lowest was reported from the estate sector (72.4%). A pro-poor, pro-rich, and no inequality were observed across urban, rural, and estate sectors respectively. Wealth had a small contribution to the estimated inequality. Province of residence and the education level of women were the main determinants of the observed socioeconomic inequality. CONCLUSION: Addressing the socioeconomic inequality of postnatal home visits made by PHMs should not be seen as a health system issue alone. The associated social determinants of health should be addressed through a multi-sectoral approach encompassing the principles of primary health care.
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    Prevalence of frailty in rural community-dwelling older adults in Kegalle district of Sri Lanka: a population-based cross-sectional study.
    (BMJ Publishing Group Ltd, 2019) Siriwardhana, D.D.; Weerasinghe, M.C.; Rait, G.; Falcaro, M.; Scholes, S.; Walters, K. R.
    OBJECTIVE:Our main objective was to describe the prevalence and associated sociodemographic factors of frailty and pre-frailty in rural community-dwelling older adults in Kegalle district of Sri Lanka.DESIGN:Community-based cross-sectional study. SETTING: The study was conducted in rural areas of Kegalle district in Sri Lanka. PARTICIPANTS: A total of 746 community-dwelling older adults aged ≥60 years were included in the study. RESULTS: The prevalence of frailty and pre-frailty in rural Kegalle district was 15.2% (95% CI 12.3% to 18.6%) and 48.5% (95% CI 43.8% to 53.2%), respectively. We found a strong association between age and both frailty and pre-frailty. There were strong associations between longest-held occupation and frailty and education level and pre-frailty. CONCLUSIONS: The prevalence of frailty in this rural Sri Lankan older population was high compared with high-income and upper middle-income countries. The profile of health and social care services in Sri Lanka needs to address frailty and its consequences
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    Cross-cultural adaptation and psychometric evaluation of the Sinhala version of Lawton Instrumental Activities of Daily Living Scale
    (Public Library of Science, 2018) Siriwardhana, D.D.; Walters, K.; Rait, G.; Bazo-Alvarez, J.C.; Weerasinghe, M.C.
    INTRODUCTION: Instrumental activities of daily living (IADL) are cognitively complex activities related to independent living in the community. Robust IADL scales are needed, however the psychometric properties of instruments have been little evaluated. There is no validated instrument for Sri Lankan older populations. Sri Lanka has the highest proportion of older people in South Asia with rapid population ageing. Therefore, it is essential to have standard instruments to assess activity limitations. We aimed to cross-culturally adapt the original Lawton Instrumental Activities of Daily Living Scale from English to Sinhala and evaluate the psychometric properties of the Sinhala version. METHODS: Cross-cultural adaptation of the instrument was performed. The instrument was validated in a sample of 702 community-dwelling older adults aged 60 years and above in Sri Lanka. Reliability (internal consistency and inter-rater reliability) was assessed. Construct validity of the scale was evaluated by performing exploratory and confirmatory factor analysis and testing convergent and divergent validity. RESULTS: The Lawton IADL scale was successfully adapted to Sri Lankan context. Internal consistency of the scale was very high (Cronbach's alpha = 0.91). Very good inter-rater reliability was observed with very good agreement for all items. Inter-class correlations for overall IADL score ranged from 0.57 to 0.91. Results of the exploratory and confirmatory factor analyses supported the unidimensionality of the scale. Goodness of fit indices in confirmatory factor analysis were in acceptable range (CFI = 0.98, SRMR = 0.06, NNFI = 0.97). Strength of associations were significant and in the expected direction. Results of the known group validity were also significant, confirming the convergent and divergent validity. CONCLUSION: The Lawton IADL scale was successfully translated and culturally adapted to Sinhala language. The Sinhala version demonstrated excellent reliability and construct validity. Given good psychometric properties, this scale would be recommended for use in future research.
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    Prevalence of frailty and prefrailty among community-dwelling older adults in low-income and middle-income countries: a systematic review and meta-analysis
    (BMJ Publishing Group Ltd, 2018) Siriwardhana, D.D.; Hardoon, S.; Rait, G.; Weerasinghe, M.C.; Walters, K.R.
    OBJECTIVE: To systematically review the research conducted on prevalence of frailty and prefrailty among community-dwelling older adults in low-income and middle-income countries (LMICs) and to estimate the pooled prevalence of frailty and prefrailty in community-dwelling older adults in LMICs. DESIGN: Systematic review and meta-analysis. PROSPERO registration number is CRD42016036083. DATA SOURCES: MEDLINE, EMBASE, AMED, Web of Science, CINAHL and WHO Global Health Library were searched from their inception to 12 September 2017. SETTING: Low-income and middle-income countries. PARTICIPANTS: Community-dwelling older adults aged ≥60 years. RESULTS: We screened 7057 citations and 56 studies were included. Forty-seven and 42 studies were included in the frailty and prefrailty meta-analysis, respectively. The majority of studies were from upper middle-income countries. One study was available from low-income countries. The prevalence of frailty varied from 3.9% (China) to 51.4% (Cuba) and prevalence of prefrailty ranged from 13.4% (Tanzania) to 71.6% (Brazil). The pooled prevalence of frailty was 17.4% (95% CI 14.4% to 20.7%, I2=99.2%) and prefrailty was 49.3% (95% CI 46.4% to 52.2%, I2=97.5%). The wide variation in prevalence rates across studies was largely explained by differences in frailty assessment method and the geographic region. These findings are for the studies with a minimum recruitment age 60, 65 and 70 years. CONCLUSION: The prevalence of frailty and prefrailty appears higher in community-dwelling older adults in upper middle-income countries compared with high-income countries, which has important implications for healthcare planning. There is limited evidence on frailty prevalence in lower middle-income and low-income countries.