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Table 1 Distribution of the children participating in the baseline survey (2013) and in the two subsequent surveys (2014 and 2016)

From: Prevalence and incidence of overweight and obesity among Vietnamese preschool children: a longitudinal cohort study

  2013 (n = 2677) 2014 (n = 2618) 2016 (n = 2602)
Area of residence Urban; n (%) 1364 (50.9) 1321 (50.5) 1311 (50.4)
Rural; n (%) 1313 (49.1) 1297 (49.5) 1291 (49.6)
Sex Boys; n (%) 1430 (53.4) 1398 (53.4) 1391 (53.5)
Girls; n (%) 1247 (46.6) 1220 (46.6) 1211 (46.5)
Age sub-cohort 3 years; n (%) 765 (28.6) 751 (28.7) 745 (28.6)
4 years; n (%) 875 (32.7) 859 (32.8) 854 (32.8)
5 years; n (%) 886 (33.1) 860 (32.8) 857 (32.9)
6 years; n (%) 151 (5.6) 148 (5.7) 146 (5.6)