ORs for early menarche by income and ethnicity, and the proportions of these elevated risks explained by childhood body mass index (BMI), psychosocial stressors and birth weight
| OR* | Explained by BMI (%) | Explained by stressors (%) | Explained by BMI, stressors and birth weight (%) | |
|---|---|---|---|---|
| Income (vs richest) | ||||
| Poorest | 1.95 | 9 | 37 | 45 |
| Ethnicity (vs white) | ||||
| Indian | 3.55 | 0 | 0 | 0 |
| Pakistani | 1.43† | 0 | 9 | 0 |
| Bangladeshi | 2.45 | 6 | 0 | 21 |
| Black Caribbean | 1.39† | 49 | 18 | 79 |
| Black African | 2.53 | 42 | 0 | 43 |
Derived from Kelly et al.2
*From Model 1 (includes age, income and ethnicity).
†Non-significant association.