Table II.

Multi-variable logistic regression for associations related to vitamin D insufficiency (20–29 ng/ml) or deficiency (<20 ng/ml) in the cancer group (model 1) and in vitamin D deficiency alone (model 2).

Characteristic (Model 1)	Odds Ratio	95% Confidence Intervals	P-value
BMI >85th percentile	5.44	(2.53, 11.67)	<0.001
Cumulative steroid dose (8994 vs. 3360)	1.19	(0.64, 2.18)	0.585
Non-Caucasian or Hispanic	4.45	(1.49, 13.35)	0.008
Male sex	1.08	(0.52, 2.25)	0.845
Age in years at survivorship visit (15 vs. 8)	2.17	(1.18, 3.96)	0.012
Vitamin D level drawn Spring vs. Winter	0.51	(0.18, 1.44)	0.204
Vitamin D level drawn Summer vs. Winter	0.12	(0.04, 0.36)	<0.001
Vitamin D level drawn Fall vs. Winter	0.35	(0.12, 1.00)	0.050
Characteristic (Model 2)	Odds Ratio	95% Confidence Intervals	P-value
BMI >85th percentile	2.29	(0.93, 5.45)	0.062
Non-Caucasian or Hispanic race	2.12	(0.76, 5.92)	0.151
Age in years at survivorship visit (15 vs. 8)	1.68	(0.80, 3.55)	0.170

Cumulative steroid dosing is expressed in prednisone equivalents in mg/m². Odds ratio comparisons are comparing the 75^th vs. 25^th percentiles.