Abstract
INTRODUCTION: The rapid increase in the cases of childhood obesity and overweight and its potential to pose other non-communicable diseases has made it a global public health issue. Urbanisation and changing lifestyles also pose a threat to disease in Nepal, but the prevalence of such diseases in Nepal is still not known according to the method recommended by World Health Organization for children's obesity and overweight. This study aimed to find out the prevalence of abnormal high body mass index among adolescents of secondary schools. METHODS: A descriptive cross-sectional study was conducted among children aged 5-19 years at two secondary schools from 7 June to 14 June 2023 after getting ethical approval from the Institutional Review Committee. A convenience sampling method was used. The point estimate was calculated at a 95% Confidence Interval. RESULTS: Out of 157 children, 29 (18.47%) (12.40-24.54, 95% Confidence Interval) had abnormal high body mass index. Out of 29 children, 19 (65.51%) were male. CONCLUSIONS: The prevalence of abnormal high body mass index among adolescents was found to be higher than other studies done in similar settings. KEYWORDS: children; obesity; overweight; prevalence; schools.