Table 7.
Multivariable ordinal logistic regression of demographic predictors on quartiles of factor scores*
| Predictor | Factor 1 - Growth | Factor 2 - Inflammation | ||
|---|---|---|---|---|
| OR | 95% CI | OR | 95% CI | |
| Race | 1.11 | [0.74 - 1.74] | 1.59 | [1.03 - 2.39]** |
| Age | ||||
| Q1 19-28 | ref | ref | ||
| Q2 29 - 31 | 1.09 | [0.61 - 1.96] | 0.84 | [0.47 - 1.50] |
| Q3 32 - 35 | 1.42 | [0.80-2.51] | 1.25 | [0.70-2.23] |
| Q4 36 - 45 | 1.62 | [0.88-2.95] | 1.14 | [0.64, 2.06] |
| Body mass index (BMI) | ||||
| <25 | ref | N/A | ||
| 25 - <30 | 2.04 | [1.24-3.34] | ||
| ⩾30 | 1.61 | [0.93-2.81]** | ||
| Baby’s age in days | ||||
| Q1 21-98 | ref | ref | ||
| Q2 100 - 189 | 0.72 | [0.41 - 1.26] | 0.50 | [0.28-0.90] |
| Q3 194 - 315 | 0.93 | [0.52 - 1.65] | 0.38 | [0.21-0.69] |
| Q4 316 - 1500 | 1.48 | [0.82-2.67] | 0.45 | [0.22-0.75]*** |
| Menses since delivery | 1.98 | [1.29-3.05]** | N/A | |
*
Associations tested in ordinal logistic regression on quartiles of factor scores with a random effect for plate. Multivariable models were built in forward stepwise selection with race and all predictors p< 0.4 retained in final models. Factors with cells labeled N/A (Not Applicable) were not included in the model for the analyte listed because they failed to meet criteria for selection.
**
p<0.05
***
p-trend<0.05