Conference Papers
Permanent URI for this collectionhttp://repository.kln.ac.lk/handle/123456789/6561
This collection contains abstracts of conference papers, presented at local and international conferences by the staff of the Faculty of Medicine
Browse
3 results
Search Results
Item Incidence, prevalence and demographic and life style risk factors for obesity among urban, adult Sri Lankans: a community cohort follow-up study(Sri Lanka Medical Association, 2017) Niriella, M.A.; de Silva, S.T.; Kasturiratne, A.; Kottachchi, D.; Ranasinghe, R.M.A.G.; Dassanayake, A.S.; de Silva, A.P.; Pathmeswaran, A.; Wickremasinghe, A.R.; Kato, N.; de Silva, H.J.INTRODUCTION & OBJECTIVES: Obesity is a global problem. Data from the South Asian region is limited. METHODS: In a cohort follow-up study we investigated obesity among urban, adult, Sri Lankans (35-64y; selected by age-stratified random sampling from Ragama-MOH area; initial screening 2007; re-evaluation 2014). On both occasions structured interview, anthropometry, liver ultrasound, biochemical and serological tests were performed. Total body fat (TBF) and visceral fat percentage (VFP) were assessed by impedance in 2014. General-obesity (GO) was BMI>25kg/m2. Central-obesity (CO) was waist circumference (WC)>90cm males and WC>80cm females. Multinomial logistic regression was fitted to assess associations. RESULTS: In 2007 (n=2967), 614 (20.7%) were overweight [51.9%-women], 1161(39.1%) had GO [65.9%-women] and 1584(53.4%) had CO [71%-women]. Females (p<0.001), raised-TG (p<0.001), low-HDL (p<0.001), diabetes (p<0.001), hypertension (p<0.001), NAFLD (p<0.001), and low household income (p<0.001) were significantly associated with prevalent GO and CO respectively. Additionally, increased-age (p=0.05), low-educational level (p<0.001) and unhealthy eating (p<0.001) were associated with prevalent CO. Inadequate physical activity was not associated with either. 2137 (72%) attended follow-up in 2014. Of those who were initially non-obese who attended follow-up, 189/1270 (14.9%) [64% women] had developed GO (annual-incidence 2.13%) and 206/947 (21.9%) [56.3% women] had developed CO (annual incidence 3.12%) after 7 years. TBF and VFP significantly correlated with incident GO and CO (p<0.001). Female gender (OR-1.78, p<0.001; 2.81, p<0.001) and NAFLD (OR-2.93, p<0.001; OR-2.27, p<0.001) independently predicted incident GO and CO respectively. CONCLUSION: The prevalence and incidence of GO and CO were high in this cohort. Both incident GO and CO were strongly associated with female gender and NAFLD.Item Alanine Transaminase (ALT) levels in normal adult Sri Lankans(American Gastroenterological Association(AGA) Institute, Published by Elsevier Inc., 2009) Niriella, M.A.; Dassanayake, A.S.; Kalubowila, K.; Kalubowila, U.; de Silva, A.P.; Wickremasinghe, A.R.; Kato, N.; Makaya, M.; de Silva, H.J.BACKGROUND : Alanine transaminase (ALT) levels are widely used in screening for liver disease.The upper limit of normal (ULN) of ALT (males 30 IU/l, females 19 IU/l) have been definedfor western populations. Normal levels have not been established for Asian populations. OBJECTIVES: To establish levels of ALT for a normal, adult Sri Lankan population METHODS: This study was part of a community based investigation - Ragama Health Study (RHS). The study population consisted of 35-64 year old adults, selected using stratified random sampling. Consenting adults were screened by a structured interview, liver ultrasound and collection of 10 ml venous blood. The “normal” population was defined as those not using potentially hepatotoxic drugs, safe alcohol consumption (14 units/week for males, 7 units/week for females), absence of fatty liver, and being HBsAg and anti-HCVab negative. ALT levels were estimated by a kit using the Bergmeyer method. The 95th percentile of the ALT levels was taken as the ULN. RESULTS: 3012 subjects participated in the study. The ALT level (U/l) among 831 normal males (mean 36, median 30, SD 20, ULN 68) was significantly higher than that of the 885 normal females (mean 29, median 25, SD 13, ULN 53) (p<0.001,Student's t-test ). CONCLUSION: The ULN for ALT levels of a “normal” Sri Lankan population was higher than observed in western populations. The levels were higher in males. ULN for ALT may need to be redefined for different population groups.Item Prevalence of non-alcoholic fatty liver disease and its risk factors in an urban adolescent cohort in Sri Lanka(Sri Lanka Medical Association, 2015) Jayasinghe, Y.C.; Rajindrajith, S.; Kasturiratne, A.; de Silva, S.T.; Niriella, M.A.; Perera, K.R.; Subasinghe, S.K.C.E.; Kodisinghe, S.K.; Priyantha, T.A.C.L.; Vithiya, K.; Pathmeswaran, A.; de Silva, H.J.INTRODUCTION AND OBJECTIVES: High prevalence of non-alcoholic fatty liver disease (NAFLD) is reported among adults in Sri Lanka. Although limited data on childhood obesity is available, community prevalence of NAFLD and its risk factors among adolescents is unknown. We investigated the prevalence and risk factors for NAFLD in an urban adolescent birth cohort in Sri Lanka. METHODS: The study population consisted 14 year-olds, belonging to the birth cohort born in 2000, residing in the Ragama Medical Officer of Health area. NAFLD was diagnosed based on established ultrasound criteria. Anthropometric measurements, blood pressure (BP) and total body fat distribution (TBF) estimates were made. Fasting blood sugar, serum insulin, fasting serum lipid and serum alanine aminotransferase (ALT) levels were measured. Independent predictors of NAFLD were determined by multivariate analysis. RESULTS: 508 adolescents [263 (51.8%) girls] participated in the study. Overall 44 (8.7%) had NAFLD [22 (8.4%) girls]. 46 (18.8%) boys and 54 (20.5%) girls had a BMI above the equivalent of 23 kgm2in adults. 44 (17.1%) boys and 77 (29.3%) girls had elevated TBF. On multivariate analysis, having an elevated BMI [OR=10.1 (95% confidence interval: 3.9-29.2) and elevated TBF [OR=4.4 (95% confidence interval: 1.5-12.8)] were independently associated with NAFLD. CONCLUSION: The prevalence of NAFLD among adolescents in this urban Sri Lankan community is high, and is strongly associated with obesity and abnormal TBF. Despite elevated TBF being commoner in girls, we found no gender differences in prevalence of NAFLD among adolescents in this urban Sri Lankan community is strongly associated with obesity and abnormal TBF. Our findings emphasize the needs to access these risk factors through preventive and screening programs.