Non-alcoholic fatty liver disease in Asian Indian adolescents and young adults: Prevalence and its associated risk factors

Background: Non-alcoholic fatty liver disease (NAFLD) is the most common form of chronic liver disease in the youth. The aim of the study was to conduct a metabolic risk factor profiling of NAFLD in adolescents and young adults in Chennai city in south India. Materials and Methods: The study participants included adolescents (n = 188) and young adults (n = 201). Ultrasonographic examination of the abdomen was done using a high-resolution B mode ultrasonography system. Based on the intensity of echogenicity, various grades of fatty liver were classified. Anthropometry, fasting plasma glucose, serum insulin, total cholesterol, triglycerides, and HDL and LDL cholesterol were estimated. χ2 analysis was performed to compare frequencies and t-tests on continuous or measurable data. Odds ratio (OR) was used as an indicator for strength of association. Results: From the total of 389 study participants, 70 had NAFLD which includes 48 with grade I, 21 with grade II, and one participant with grade III NAFLD. About 80% of the participants with NAFLD were adults (≥20 years) and more males were affected (70%) than females (30%). Generalized obesity was present in 90% of the participants with NAFLD. After adjusting for age and gender, obesity [OR: 5.88; 95% confidence interval (CI): 2.53–13.69; P-value: