Table 3.
Association Between Household Intactness and Timing of Pubic Hair Development Onset: KPNC Puberty Study (2009–2020)
| Unadjusted | Adjusteda | Adjusteda,b | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Household Intactness | N | TR | 95%CI | HR | 95%CI | TR | 95%CI | HR | 95%CI | TR | 95%CI | HR | 95%CI |
|
Non-intact household before age 2 years |
1,954 | 0.96 | 0.95,0.97 | 1.48 | 1.35,1.61 | 0.98 | 0.97,0.99 | 1.21 | 1.11,1.33 | 0.99 | 0.98,1.00 | 1.15 | 1.05,1.26 |
|
Non-intact household during age 2–6 years |
2,115 | 0.98 | 0.97,0.99 | 1.26 | 1.16,1.38 | 0.99 | 0.98,0.99 | 1.15 | 1.05,1.25 | 0.99 | 0.98,1.00 | 1.11 | 1.02,1.21 |
| Intact household | 21,165 | Ref | Ref | Ref | Ref | Ref | Ref | ||||||
CI confidence interval; HR hazard ratio; KPNC Kaiser Permanente Northern California; TR time ratio
aAdjusted for race/ethnicity and median household income
bAdjusted for prepubertal BMI