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Table 1 Unweighted sample sizes and weighted percentages for Chinese children and adolescents aged 7 to 19 years: PAFCTYS 2017

From: Physical activity, screen viewing time, and overweight/obesity among Chinese children and adolescents: an update from the 2017 physical activity and fitness in China—the youth study

  All grade grouping Primary Junior middle Junior high
Both sexes 105,246 (100%) 33,342 (100%) 35,233 (100%) 36,671 (100%)
 Girls 54,689 (52.1%) 17,357 (51.1%) 18,474 (52.4%) 18,858 (51.4%)
 Boys 50,557 (47.9%) 15,985 (47.9%) 16,759 (47.6%) 17,813 (48.6%)
Residential location     
 Urban 57,190 (53.7%) 17,744 (53.2%) 18,377 (52.2%) 21,069 (57.5%)
 Rural 48,056 (46.3%) 15,598 (46.8%) 16,856 (47.8%) 15,602 (42.5%)
  1. PAFCTYS denotes Physical Activity and Fitness in China—The Youth Study. Percentage is weighted using PAFCTYS sampling weights to be representative of the Chinese grade school population in 2017 (unweighted sample size = 105,246; weighted sample size = 93,099,259)