Quah, P.L.Loo, B.K.G.Mettananda, S.Dassanayake, S.Chia, M.Y.H.Chua, T.B.K.Tan, T.S.Z.Chan, P.C.But, B.W.Fu, A.C.Wong, S.M.Nagano, N.Morioka, I.Kumar, S.Nair, M.K.C.Tan, K.H.2023-08-022023-08-022023International Journal of Environmental Research and Public Health.2023;20(14):6403.1661-7827 (Print)1660-4601 (Electronic)http://repository.kln.ac.lk/handle/123456789/26473Indexed in MEDLINE.This study aimed to examine the prevalence of adherence to 24 h activity guidelines in children and adolescents from Asia-Pacific cities. In 1139 children aged 5-18 years, moderate-to-vigorous physical activity (MVPA), screen viewing time (SVT), sleep duration, child weight, height, sex, and age were parent-reported. Descriptive statistics were used to assess the number of guidelines met, and prevalence of adherence to activity guidelines by city and child sex. Prevalence of meeting all three 24 h activity guidelines was low across all countries (1.8-10.3%) (p < 0.05). Children from Thiruvananthapuram, India had the highest [10.3% (95% CI: 6.0-17.0)], while those from Tokyo, Japan had the lowest prevalence [1.8% (95% CI: 0.5-7.0)] of meeting all three guidelines. The highest prevalence of meeting individual MVPA, SVT and sleep guidelines was found in India [67.5% (95% CI: 58.8-75.1)], Kelaniya, Sri Lanka [63.2% (95% CI: 58.7-67.4)] and Kowloon, Hong Kong [59.4% (95% CI: 51.1-65.3)], respectively. Overall, a higher prevalence of boys met all three guidelines, compared to girls [5.9% (95% CI: 4.1-8.1) vs. 4.7% (3.1-6.6), p = 0.32]. The prevalence of adhering to all three activity guidelines was low in all five participating cities, with a higher proportion of boys meeting all guidelines.en24 h activity guidelinesAsia-Pacificadolescentschildrenmoderate-to-vigorous physical activityoverweightscreen viewing timesleep durationobesityArticle