TABLE E1.
Characteristics of the study subjects at Yr11 (for proportions, the actual numbers are shown in parentheses)*
| Yr11 |
||
|---|---|---|
| Characteristic | Included (n = 600) | Not included (n = 356) |
| Age (y), mean ± SD | 10.7 ± 0.5 | 11.1 ± 0.8† |
| Sex: male, % | 48.2 (289 of 600) | 49.7 (177 of 356) |
| Current asthma, % | 17.6 (104 of 592) | 13.2 (46 of 349)‡ |
| Atopy, % | 54.7 (327 of 598) | 57.3 (63 of 110) |
| Current physical activity, % | 51.3 (307 of 599) | 57.9 (206 of 356)§ |
| MET (h/wk), % | ||
| 0 | 48.8 (292 of 598) | 42.3 (150 of 355)§ |
| 1–40 | 25.4 (152 of 598) | 23.9 (85 of 355) |
| >40 | 25.8 (154 of 598) | 33.8 (120 of 355) |
| Maternal education ≤12 y, % | 28.9 (173 of 599) | 25.6 (91 of 356) |
| Paternal education ≤12 y, % | 26.2 (154 of 588) | 23.1 (81 of 351) |
| Parental ethnicity, % | ||
| Non-Hispanic white | 60.8 (365 of 600) | 70.8 (252 of 356)§ |
| ≥1 Hispanic white | 25.8 (155 of 600) | 16.0 (57 of 356) |
| Other ethnicity | 13.3 (80 of 600) | 13.2 (47 of 356) |
| BMI (kg/m2), GM (95% CI) | 18.6 (18.3–18.9) | 18.3 (18.0–18.7) |
| Overweight/obese, % | 27.4 (164 of 599) | 24.6 (75 of 305) |
| Obese, % | 12.2 (73 of 599) | 10.2 (31 of 305) |
GM, Geometric mean.
*
Totals are not the same for all individual characteristics because information is missing for some subjects.
†
P < .001 by t test vs study subjects at same age.
‡
.1 > P > .05 by χ2 test vs study subjects at same age.
§
P < .05 by χ2 test vs study subjects at same age.