Table 4.
Odds Ratio of a one quintile decrease in CPEI (lower CPEI) by parity group and by covariate††.
| Unadjusted Odds Ratio (95% CI) p-value | Model 1† | Model 2‡ | Model 3A§ | Model 3B¶ | |
|---|---|---|---|---|---|
| Parity 1–2 vs. 0 | 1.03 (0.78 – 1.358) p= 0.8222 |
1.06 (0.8 – 1.393) p= 0.6902 |
1.05 (0.79 – 1.381) p= 0.7422 |
1.02 (0.78 – 1.346) p= 0.8778 |
1.01 (0.77 – 1.337) p= 0.9341 |
| Parity 3–4 vs. 0 | 1.31 (0.99 – 1.744) p= 0.0582 |
1.3 (0.98 – 1.736) p= 0.0679 |
1.21 (0.91 – 1.623) p= 0.1903 |
1.2 (0.9 – 1.6) p= 0.2215 |
1.19 (0.89 – 1.594) p= 0.2359 |
| Parity ≥5 vs. 0 | 1.48 (1.01 – 2.17) p= 0.0442 |
1.46 (1 – 2.147) p= 0.0525 |
1.27 (0.85 – 1.881) p= 0.2393 |
1.25 (0.84 – 1.848) p= 0.2705 |
1.23 (0.83 – 1.832) p= 0.2985 |
| Parity ≥3 vs. 0 | 1.95 (1.08 – 3.499) p= 0.0261 |
1.91 (1.06 – 3.448) p= 0.0325 |
1.54 (0.84 – 2.829) p= 0.1653 |
1.49 (0.81 – 2.742) p= 0.1945 |
1.47 (0.8 – 2.705) p= 0.215 |
| Parity ≥1 vs. 0 | 2.01 (0.89 – 4.513) p= 0.0913 |
2.02 (0.89 – 4.562) p= 0.0918 |
1.61 (0.7 – 3.696) p= 0.2596 |
1.53 (0.67 – 3.492) p= 0.3158 |
1.49 (0.65 – 3.418) p= 0.3492 |
| Linear trend (1 child increment) | 1.08 (1.03 – 1.14) p= 0.0037 |
1.07 (1.02 – 1.133) p= 0.0099 |
1.04 (0.99 – 1.106) p= 0.129 |
1.04 (0.99 – 1.105) p= 0.1349 |
1.04 (0.99 – 1.105) p= 0.1415 |
| Additional covariates | |||||
| ††Race (AA vs. W) | 0.66 (0.49 – 0.89) p= 0.006 |
0.72 (0.53 – 0.97) p= 0.0332 |
0.79 (0.58 – 1.08) p= 0.1343 |
0.77 (0.57 – 1.04) p= 0.0883 |
|
| ††Race (other vs. W) | 0.81 (0.4 – 1.66) p= 0.5712 |
0.87 (0.43 – 1.73) p= 0.6847 |
0.86 (0.44 – 1.67) p= 0.6513 |
0.85 (0.43 – 1.69) p= 0.646 |
|
| ††Site (UIowa vs UAB) | 1.09 (0.9 – 1.31) p= 0.3919 |
1.12 (0.93 – 1.36) p= 0.2283 |
1.16 (0.96 – 1.4) p= 0.126 |
1.19 (0.98 – 1.45) p= 0.0775 |
|
| ††Age (1 year) | 1.02 (1.01 – 1.03) p= 0.0016 |
1.02 (1 – 1.03) p= 0.0096 |
1.02 (1 – 1.03) p= 0.0086 |
||
| ††BMI (1 kg/m2) | 0.98 (0.97 – 0.99) p= 0.0056 |
0.97 (0.94 – 0.99) p= 0.0154 |
†:
Model 1: adjusted for race and clinic site
‡:
Model 2: model 1 plus additionally adjusted for age
§:
Model 3A: model 2 plus additionally adjusted for BMI at 60m (current)
¶:
Model 3B (sensitivity): model 2 plus additionally adjusted for BMI at 25 years-old (self-reported)
Abbreviations: AA, African American; BMI, body mass index; CPEI, center of pressure excursion index; CI, confidence interval; W, White