Table 1.
Number of observations and means and standard deviations of body mass index (kg/m2) and height (cm) by age and sexa.
| Age | Males | Females | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| N | BMI | Height | N | BMI | Height | |||||
| Mean | SD | Mean | SD | Mean | SD | Mean | SD | |||
| 1 | 14,860 | 17.1 | 1.40 | 73.9 | 4.43 | 14,978 | 16.8 | 1.42 | 72.5 | 4.47 |
| 2 | 12,379 | 16.5 | 1.41 | 86.8 | 4.31 | 12,134 | 16.2 | 1.42 | 85.6 | 4.36 |
| 3 | 14,835 | 15.9 | 1.42 | 96.1 | 4.40 | 15,279 | 15.7 | 1.48 | 95.1 | 4.50 |
| 4 | 7633 | 15.8 | 1.69 | 102.5 | 4.89 | 7737 | 15.7 | 1.81 | 101.3 | 4.86 |
| 5 | 6603 | 15.2 | 1.43 | 111.4 | 5.91 | 6564 | 15.1 | 1.54 | 110.7 | 6.05 |
| 6 | 2233 | 15.4 | 1.52 | 114.1 | 5.61 | 2065 | 15.3 | 1.60 | 113.2 | 5.57 |
| 7 | 11,856 | 15.4 | 1.77 | 124.4 | 6.50 | 12,305 | 15.4 | 1.98 | 123.5 | 6.50 |
| 8 | 5217 | 15.7 | 1.79 | 128.3 | 6.38 | 5192 | 15.7 | 2.03 | 127.6 | 6.40 |
| 9 | 5149 | 16.4 | 2.33 | 133.8 | 6.78 | 5120 | 16.5 | 2.62 | 133.0 | 6.97 |
| 10 | 9687 | 16.6 | 2.34 | 141.0 | 7.15 | 9940 | 16.7 | 2.62 | 140.6 | 7.30 |
| 11 | 7177 | 17.3 | 2.65 | 144.4 | 7.09 | 7357 | 17.5 | 2.83 | 144.8 | 7.47 |
| 12 | 9831 | 17.8 | 2.82 | 151.9 | 7.98 | 10,161 | 18.0 | 2.93 | 153.0 | 8.06 |
| 13 | 3474 | 18.4 | 2.90 | 158.4 | 8.94 | 3413 | 18.7 | 3.11 | 158.0 | 7.49 |
| 14 | 7250 | 19.5 | 3.07 | 165.7 | 8.84 | 7800 | 19.8 | 3.19 | 162.1 | 6.79 |
| 15 | 3270 | 19.9 | 3.20 | 172.1 | 8.42 | 3266 | 20.2 | 3.23 | 164.7 | 7.11 |
| 16 | 5540 | 20.7 | 2.89 | 175.7 | 7.39 | 6350 | 20.7 | 3.01 | 164.9 | 6.50 |
| 17 | 6125 | 21.2 | 2.86 | 177.8 | 7.12 | 6904 | 20.7 | 2.80 | 165.7 | 6.54 |
| 18 | 3692 | 21.7 | 2.98 | 178.8 | 7.28 | 3960 | 21.3 | 3.34 | 165.8 | 6.79 |
| 19 | 2901 | 22.0 | 2.87 | 179.3 | 7.29 | 3529 | 21.4 | 3.29 | 166.1 | 6.71 |
aIncludes the following individual twin cohorts: Boston University Twin Project, Child and Adolescent Twin Study in Sweden (CATSS), Colorado Twin Registry, Danish Twin Cohort, FinnTwin12, FinnTwin16, Gemini Study, Guinea Bissau Twin Study, Japanese Twin Registry, Longitudinal Israeli Study of Twins, Michigan Twins Project, Minnesota Twin Family Study, Netherlands Twin Cohort (children), Netherlands Twin Cohort (adults), Ochanomizu University Twin Project, Peri/Postnatal Epigenetic Twins Study (PETS), Quebec Newborn Twin Study, Queensland Twin Register, Swedish Young Male Twins Study (children), Swedish Young Male Twins Study (adults), TCHAD-study, University of Southern California Twin Study, Washington State Twin Registry, Twins Early Developmental Study (TEDS), West Japan Twins and Higher Order Multiple Births Registry