Table 4. Hazard ratios (HRs) for reaching menarche <12 years, girls 9–12 yrs.
| HR (95% CI) | HR (95% CI) | HR (95% CI) | |
| Tertile I | Tertile II | ||
| Milk g tertiles (0, 0–244, 245+) | 0.8 (0.5, 1.3)NS | 0.6 (0.4, 1.0)P<0.06 | |
| Dairy kcal tertiles (0–99, 100–229, 230+ kcal) | 1.2 (0.7, 2.0)NS | 1.2 (0.7, 1.9)NS | |
| Dairy calcium tertiles (0–199, 200–399, 400+ mg) | 1.0 (0.6, 1.7)NS | 0.9 (0.6, 1.3)NS | |
| Dairy protein tertiles (<6, 6–11.99, 12+ g) | 0.9 (0.6, 1.5)NS | 0.7 (0.5, 1.1)NS | |
| Dairy fat tertiles (<4, 4–9.99, 10+ g) | 1.5 (1.0, 2.5)p<0.07 | 1.6 (1.0, 2.4)* | |
| Total calcium tertiles (0–599, 600–999, 1000+) | 0.6 (0.3, 1.0)* | 0.8 (0.5, 1.2)NS | |
| Daily vs. never/rarely/sometimes/varied | |||
| milk consumption in the past 30 days | 1.0 (0.6, 1.6)NS |
a
Highest tertile and White are reference categories;
*P<0.05.
Base model hazard ratios (95% CI): birth weight: 1.0 (0.7, 1.4, NS), total kcal: 1.00 (1.0, 1.0, NS); Mexican-American 1.5 (0.8, 2.7, NS); Black 1.6 (1.0, 2.6, P<0.03).