Table 5.
Association Between Household Intactness and Onset of Breast Development, Stratified by Race/Ethnicity: Test for Interaction, p<0.001
| Intact household | Non-intact household before age 2 years |
Non-intact household during age 2–6 years |
||||
|---|---|---|---|---|---|---|
| Race/Ethnicitya | N | HR | HR | 95%CI | HR | 95%CI |
| White | 9,084 | Ref | 1.24 | 1.04,1.47 | 1.21 | 1.06,1.38 |
| Black | 1,657 | Ref | 1.60 | 1.29,1.98 | 1.44 | 1.12,1.86 |
| Hispanic & Latinx | 6,411 | Ref | 1.30 | 1.12,1.51 | 1.00 | 0.85,1.16 |
| Asian/Pacific Islander | 5,542 | Ref | 1.05 | 0.81,1.37 | 0.85 | 0.68,1.07 |
| Other/Unknown | 2,056 | Ref | 1.35 | 0.95,1.91 | 1.69 | 1.26,2.26 |
| Combined | 24,750 | Ref | 1.29 | 1.19,1.40 | 1.13 | 1.04,1.22 |
CI confidence interval; HR hazard ratio
aAdjusted for median household income