Table 3:
Unadjusted and Mutually Adjusted estimates for tempo (months) associated with Race, Site, BMI, B2-age and Menarche Age
| Unadjusted | Mutually Adjusted | ||||||
|---|---|---|---|---|---|---|---|
| Characteristic | N | Median tempo (IQR) | Beta* (95%) | p value | Beta* (95%) | p value | |
| All | 906 | 33.0 (24.5, 42.5) | |||||
| Race/Ethnicity | Black | 278 | 35.0 (26.0,46.0) | ref | ref | ||
| Hispanic | 269 | 27.0 (19.5,37.0) | −7.64 (−9.89,−5.38) | <.0001 | −5.64 (−7.97,−3.31) | <.0001 | |
| Asian | 53 | 31.0 (23.5,36.5) | −5.40 (−9.35,−1.46) | 0.007 | −2.58 (−6.66,1.49) | 0.214 | |
| White | 306 | 36.0 (28.0,45.0) | 0.52 (−1.66,2.70) | 0.642 | 0.03 (−2.28,2.34) | 0.979 | |
| Site | NY | 276 | 29.0 (20.5,39.5) | ref | ref | ||
| OH | 260 | 40.5 (30.5,49.3) | 9.85 (7.60,12.10) | <.0001 | 6.91 (4.21,9.61) | <.0001 | |
| CA | 370 | 31.0 (24.0,39.5) | 1.18 (−0.89,3.25) | 0.264 | −0.33 (−2.72,2.06) | 0.785 | |
| Base-line BMI% | <50th | 298 | 33.0 (25.5,42.5) | ref | ref | ||
| 50-84.9th | 312 | 32.0 (24.3,42.0) | −0.53 (−2.74,1.68) | 0.637 | −0.19 (−2.28,1.89) | 0.856 | |
| 85-94.9th | 141 | 34.0 (25.0,44.5) | 1.24 (−1.55,4.02) | 0.384 | 1.62 (−1.02,4.26) | 0.228 | |
| >95th | 154 | 31.8 (23.0,47.0) | 1.58 (−1.12,4.29) | 0.251 | 3.11 (0.49,5.72) | 0.020 | |
| B2 Age | <8.5 yr | 253 | 42.5 (33.0,53.0) | ref | |||
| 8.5-10.5 yr | 487 | 31.0 (24.0,41.0) | −10.7 (−12.6,−8.84) | <.0001 | |||
| 10.5+ yr | 166 | 25.3 (17.0,32.0) | −17.6 (−20.1,−15.2) | <.0001 | |||
| Men-arche Age | <12 yr | 389 | 28.0 (20.0,36.0) | ref | |||
| 12 - 14 yr | 448 | 36.8 (28.3,45.5) | 9.07 (7.32,10.83) | <.0001 | |||
| 14+ yr | 69 | 42.0 (32.0,52.5) | 15.63 (12.33,18.94) | <.0001 | |||
*
Beta can be interpreted as change in months, computed using PROC GLM. Negative beta denotes shorter interval as well as faster tempo.
Adjusted models did not include B2-age or menarche age.