Table 1.

Descriptive statistics for boy and girls in mother/son and mother/daughter pairs

Target age	Son		Daughter
	N	BMI mean + SD (min, max)	N	BMI mean + SD (min, max)
0	177	13.3 ± 1.5 (8.0, 18.5)	178	13.3 ± 1.3 (8.9, 17.2)
0.5	153	17.3 ± 1.4 (13.7, 20.9)	154	16.8 ± 1.5 (13.3, 21.2)
1	155	17.4 ± 1.2 (14.8, 20.6)	155	17.0 ± 1.3 (14.2, 20.2)
1.5	147	16.6 ± 1.1 (14.2, 19.2)	146	16.4 ± 1.3 (12.9, 19.3)
2	144	16.3 ± 2.0 (13.8, 21.0)	137	16.0 ± 1.2 (13.1, 18.6)
2.5	136	16.0 ± 1.2 (13.7, 22.7)	141	15.7 ± 1.2 (11.9, 18.5)
3	151	15.9 ± 1.1 (13.2, 19.7)	145	15.7 ± 1.2 (12.1, 18.8)
4	154	15.7 ± 1.2 (13.1, 22.1)	156	15.6 ± 1.2 (12.8, 19.1)
5	157	15.6 ± 1.3 (13.1, 21.6)	144	15.5 ± 1.4 (12.3, 20.1)
6	148	15.6 ± 1.5 (12.8, 23.3)	143	15.5 ± 1.6 (12.3, 21.9)
7	159	15.8 ± 1.8 (12.8, 27.3)	146	15.9 ± 2.0 (12.1, 25.0)
8	156	16.1 ± 2.2 (12.9, 30.0)	144	16.2 ± 2.3 (12.6, 24.2)
9	148	16.7 ± 2.7 (13.0, 30.9)	142	17.0 ± 2.8 (12.5, 25.8)
10	155	17.3 ± 3.0 (13.0, 33.6)	152	17.7 ± 3.2 (12.3, 27.4)
11	150	18.0 ± 3.3 (13.3, 34.7)	147	18.5 ± 3.5 (13.0, 30.2)
12	143	18.5 ± 3.4 (14.0, 36.0)	138	19.2 ± 3.7 (12.5, 29.7)
13	145	19.1 ± 3.4 (14.0, 38.3)	134	20.0 ± 3.8 (14.0, 33.4)
14	148	20.1 ± 3.9 (14.9, 40.0)	134	20.9 ± 4.0 (14.7, 32.9)
15	141	20.9 ± 3.8 (15.4, 38.2)	115	21.3 ± 3.9 (15.3, 36.5)
16	137	21.4 ± 4.1 (15.3, 43.7)	118	21.3 ± 3.9 (15.3, 36.5)
17	137	21.9 ± 3.2 (15.4, 40.7)	113	21.8 ± 4.0 (16.1, 36.3)
18	74	21.6 ± 2.8 (17.0, 31.3)	66	21.6 ± 3.6 (16.4, 35.9)

BMI, body mass index; N, sample size; SD, standard deviation.