Table 1.

Median Values for Height, Body Mass Index, and Body Surface Area for 321,084 Boys and Girls at Each Age From Ages 7 to 13 Years, Copenhagen, Denmark, 1968–2012^a

Characteristic and Age, years	Boys				Girls
	No. of Childrenb	Median	5th Percentile	95th Percentile	No. of Childrenb	Median	5th Percentile	95th Percentile
Height, cm
7	151,893	122.6	114.0	131.2	147,998	121.7	113.0	130.4
8	153,742	127.9	118.9	137.0	149,777	126.9	117.9	136.0
9	147,874	133.1	123.8	142.9	144,778	132.1	122.7	142.0
10	143,832	138.1	128.4	148.4	141,261	137.2	127.3	148.0
11	142,678	142.9	132.8	153.8	140,371	142.9	132.0	154.8
12	141,210	147.7	137.0	159.8	139,313	149.3	137.1	161.7
13	138,607	153.5	141.5	167.6	137,413	155.5	143.0	167.0
Body mass indexc
7	151,893	15.4	13.8	17.7	147,998	15.3	13.5	18.0
8	153,742	15.7	14.0	18.3	149,777	15.6	13.7	18.7
9	147,874	16.0	14.2	19.0	144,778	16.0	13.9	19.6
10	143,832	16.4	14.4	19.9	141,261	16.4	14.2	20.4
11	142,678	16.8	14.7	20.7	140,371	16.8	14.4	21.3
12	141,210	17.2	15.0	21.6	139,313	17.5	14.8	22.2
13	138,607	17.8	15.3	22.3	137,413	18.3	15.3	23.2
Body surface aread, m2
7	151,893	0.88	0.78	1.02	147,998	0.87	0.76	1.01
8	153,742	0.95	0.83	1.10	149,777	0.94	0.82	1.10
9	147,874	1.02	0.89	1.20	144,778	1.01	0.87	1.20
10	143,832	1.09	0.95	1.29	141,261	1.08	0.93	1.30
11	142,678	1.16	1.01	1.39	140,371	1.16	0.99	1.41
12	141,210	1.24	1.07	1.50	139,313	1.27	1.06	1.54
13	138,607	1.33	1.13	1.63	137,413	1.38	1.15	1.65

^a Based on data from the Copenhagen School Health Records Register.

^b Numbers of individuals at each age may vary from the total, because not every child had anthropometric values at each age.

^c Body mass index was defined as weight (kg)/height (m)².

^d Body surface area was defined as weight (kg)^0.5378 × height (cm)^0.3964 × 0.024265.