Table 1.
Association between parental smoking and BMI of study participants (+/− kg/m2, (SE) and P value)
| No exposure to parental smoking | Mother smoked 1st year of life | Mother currently smokes | Father currently smokes | Father currently smokes | |
|---|---|---|---|---|---|
| High GNI countries | Low GNI countries | ||||
| Children (N = 77 192) | 14.66a | +0.11 (0.04) P = 0.002 | +0.07 (0.03) P = 0.03 | +0.15 (0.02) P < 0.0001 | −0.14 (0.05) P = 0.004 |
| Adolescent Females (N = 98 238) | 19.72a | N/A | +0.22 (0.03) P < 0.0001 | +0.18 (0.03) P < 0.0001 | −0.05 (0.04) P = 0.17 |
| Adolescent Males (N = 96 489) | 19.78a | N/A | +0.18 (0.03) P < 0.0001 | +0.06 (0.03) P = 0.04 | −0.03 (0.04) P = 0.48 |
aEstimated BMIs for boys aged 7 years and adolescents aged 14 years. Associations stated are additive