Tab. SI.

Anthropometric indices (means ± SE) of population by gender and age.

	Boys				Girls
Age†	N	Height (cm)	Weight (kg)	BMI (kg/m2)	N	Height (cm)	Weight (kg)	BMI (kg/m2)
4	3157	107.9 (5.0)*	18.7 (2.8)*	16.0 (1.9)	3091	106.6 (5.1)	18.3 (2.8)	16.0 (1.9)
5	4550	113.1 (5.4)*	20.8 (3.8)*	16.3 (2.1)*	4477	111.8 (5.3)	20.2 (3.7)	16.1 (2.2)
6	11361	120.0 (5.6)*	24.0 (3.7)*	16.4 (2.4)*	11139	118.8 (5.5)	23.3 (4.6)	16.4 (2.4)
7	21034	125.1 (5.8)*	26.6 (5.5)*	16.9 (2.6)*	21165	124.1 (5.8)	26.0 (5.3)	16.8 (2.6)
8	21159	131.4 (6.0)*	30.4 (6.7)*	17.6 (3.0)*	20140	130.0 (6.1)	29.7 (6.5)	17.4 (3.0)
9	21387	136.9 (6.4)*	34.5 (8.0)*	18.3 (3.3)*	20524	135.6 (6.5)	33.7 (7.7)	18.1 (3.2)
10	21162	142.1 (6.8)*	38.5 (9.0)*	18.9 (3.5)*	20424	141.8 (7.7)	38.0 (8.9)	18.7 (3.4)
11	19875	147.3 (7.1)*	43.2 (10.2)*	19.6 (3.6)*	18910	148.4 (7.6)	43.0 (9.9)	19.3 (3.6)
12	16349	153.7 (7.9)*	47.5 (11.3)*	20.1 (3.8)*	15465	154.8 (7.4)	47.9 (10.6)	19.9 (3.6)
13	8515	160.5 (8.7)*	54.0 (12.9)*	20.7 (3.9)*	7819	159.2 (6.7)	52.1 (10.8)	20.5 (3.7)
14	7635	167.4 (8.5)*	60.5 (13.6)*	21.4 (3.9)*	6734	162.0 (6.2)	55.6 (10.5)	21.2 (3.6)
15	6273	172.5 (7.5)*	65.2 (13.1)*	21.8 (3.8)*	5425	163.2 (6.1)	57.5 (10.2)	21.6 (3.5)
16	3695	175.5 (7.0)*	69.3 (13.0)*	22.5 (3.8)*	3413	164.2 (6.3)	58.9 (10.4)	21.8 (3.5)
17	2358	177.0 (7.1)*	72.0 (13.2)*	22.9 (3.7)*	2228	164.7 (6.3)	60.1 (10.8)	22.1 (3.6)
P for trend		< 0.001	< 0.001	< 0.001		< 0.001	< 0.001	< 0.001

^† Age: completed age, e.g., 4 years = 4.00-4.99 years; * p-value < 0.01 between boys and girls; BMI: Body Mass Index.