Table 3:

Prevalence estimates of weight status by age and sex, 2014–2015

Age group, yr	No. of children	Body mass index z-score category; % of children (95% CI)
		< −2	≥ −2 to ≤ 1	> 1 to ≤ 2	> 2 to ≤ 3	> 3
All children
≤ 4	15 089	4.8 (4.5 to 5.1)	75.5 (74.8 to 76.1)	14.7 (14.1 to 15.2)	4.2 (3.9 to 4.5)	0.9 (0.7 to 1.0)
5–9	6907	2.3 (1.9 to 2.7)	72.7 (71.7 to 73.8)	15.1 (14.3 to 15.9)	7.0 (10.6 to 12.1)	2.7 (2.3 to 3.1)
10–14	5616	2.2 (1.8 to 2.6)	62.9 (61.6 to 64.2)	21.1 (20.0 to 22.2)	10.8 (10.0 to 11.6)	2.9 (2.4 to 3.3)
15–18	3660	1.9 (1.4 to 2.3)	67.1 (65.6 to 68.6)	18.1 (16.9 to 19.4)	9.1 (8.2 to 10.1)	3.7 (3.1 to 4.3)
Total	31 272	3.4 (3.2 to 3.6)	71.6 (71.1 to 72.1)	16.3 (15.9 to 16.7)	6.6 (6.3 to 6.8)	2.0 (1.8 to 2.1)
Boys
≤ 4	7683	5.0 (4.5 to 5.5)	73.7 (72.7 to 74.7)	15.3 (14.5 to 16.1)	4.8 (4.3 to 5.3)	1.2 (0.9 to 1.4)
5–9	3552	2.2 (1.8 to 2.8)	71.3 (69.7 to 72.7)	15.3 (14.2 to 16.5)	7.4 (6.5 to 8.3)	3.5 (2.9 to 4.2)
10–14	2824	2.4 (1.9 to 3.1)	61.5 (59.7 to 63.3)	20.5 (19.0 to 22.0)	12.2 (11.0 to 13.4)	3.3 (2.7 to 4.0)
15–18	1737	2.8 (2.0 to 3.6)	64.1 (61.8 to 66.4)	19.2 (17.4 to 21.1)	10.2 (8.9 to 11.8)	3.5 (2.7 to 4.0)
Total	15 796	3.7 (3.4 to 4.0)	69.9 (69.2 to 70.6)	16.6 (16.1 to 17.2)	7.3 (6.9 to 7.7)	2.3 (2.1 to 2.6)
Girls
≤ 4	7406	4.5 (4.1 to 5.0)	77.3 (76.3 to 78.3)	14.0 (13.2 to 14.8)	3.5 (3.1 to 4.0)	0.6 (0.4 to 0.8)
5–9	3355	2.3 (1.8 to 2.9)	74.2 (72.7 to 75.7)	14.8 (13.7 to 16.1)	6.6 (5.8 to 7.5)	1.7 (1.3 to 2.2)
10–14	2792	2.0 (1.5 to 2.6)	64.4 (62.6 to 66.1)	21.8 (20.2 to 23.3)	9.4 (8.4 to 10.6)	2.4 (2.0 to 3.0)
15–18	1923	1.0 (0.6 to 1.6)	69.8 (67.7 to 71.8)	17.2 (15.5 to 18.9)	8.0 (6.9 to 9.4)	3.8 (3.0 to 4.8)
Total	15 476	3.2 (2.9 to 3.4)	73.4 (72.7 to 74.1)	16.0 (15.4 to 16.6)	5.8 (5.5 to 6.2)	1.6 (1.4 to 1.8)

Note: CI = confidence interval.