Table 1.
Participant characteristics, overall and according to child sex (n=929)
| Overall | Girls | Boys | |
|---|---|---|---|
| n=929 | n=463 | n=466 | |
| Mean (SD) or N (%) | |||
| Child at early teen visit | |||
| Race/ethnicity, % | |||
| . Black | 154 (17) | 74 (16) | 80 (17) |
| . Hispanic | 40 (4) | 20 (4) | 20 (4) |
| . Asian | 28 (3) | 13 (3) | 15 (3) |
| . White | 593 (64) | 301 (65) | 292 (63) |
| . Other | 113 (12) | 54 (12) | 59 (13) |
| Age, years | 13 (1) | 13 (1) | 13 (1) |
| Height, cm | 160 (9) | 159 (8) | 161 (10) |
| BMI percentile category, % | |||
| . <5th | 30 (3) | 16 (3) | 14 (3) |
| . 5-<85th | 634 (68) | 316 (68) | 318 (69) |
| . ≥85th | 262 (28) | 130 (28) | 132 (28) |
| Waist circumference, cm | 73 (12) | 73 (11) | 74 (12) |
| SS+TR skinfold thickness, mm | 29 (14) | 31 (14) | 27 (14) |
| BIA body fat % | 22 (10) | 26 (10) | 18 (9) |
| DXA body fat % | 29 (8) | 30 (7) | 27 (8) |
| Exhaled Nitric Oxide, ppb | 26 (27) | 24 (26) | 28 (28) |
| Current asthma, % | 115 (14) | 59 (14) | 56 (14) |
| TV or videos, ≥2 h/d, % | 589 (65) | 283 (63) | 306 (68) |
| Vigorous physical activity <7 h/w, % | 705 (77) | 358 (78) | 347 (76) |
| HR after step test 2 minutes, beats/min | 86 (18) | 90 (19) | 82 (17) |
|
Mother/family | |||
| Mother ≥college graduate at enrollment, % | 662 (71) | 336 (73) | 326 (70) |
| Annual household income at visit, $1000s | 109 (44) | 110 (44) | 109 (44) |
| Maternal smoking status during pregnancy, % | |||
| . Never | 653 (71) | 326 (71) | 327 (70) |
| . Former | 188 (20) | 93 (20) | 95 (20) |
| . Current (during pregnancy) | 85 (9) | 41 (9) | 44 (9) |
| Any smokers at home at time of visit, % | 114 (12) | 52 (11) | 62 (13) |
| Percent ≥bachelors (census tract, mid-childhood) | 42 (20) | 42 (20) | 42 (20) |
| Median value owner-occupied housing (census tract, mid-childhood), $1000s | 264 (149) | 263 (147) | 264 (150) |