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