Vitamin D Supplementation Improves Mood in Women with Type 2 Diabetes

Table 3

Depression changes following vitamin D₂ supplementation with covariates.

Covariates	Mean difference	95% confidence interval
		Lower	Upper
Race				0.31
Black versus Hispanic	4.7516	−5.6445	15.1477	0.61
Black versus White	−1.1974	−5.2968	2.9020	0.86
Hispanic versus White	−5.9489	−16.0291	4.1312	0.40
Enrollment: spring/summer versus fall/winter	−4.3133	−8.0222	−0.6043	0.02
Month				<0.001
Six months versus baseline	−14.6484	−17.7326	−11.5642	<0.001
Three months versus baseline	−11.8442	−14.8664	−8.8221	<0.001
Six months versus three months	−2.8041	−5.8980	0.2898	0.09

Note: valid . Significance () is adjusted for inflated type I error using the Sidak correction. Other covariates appearing in the model include baseline vitamin 25 OH D (), baseline PHQ-9 score (), and BMI ().