Table 2.

Baseline Characteristics and Effect on Plasma 25-hydroxyvitamin D [25(OH)D] Levels in Univariable Analysis (n=65)

Factor	Univariable analysis
	Mean effect on 25(OH)D (95% C.I.)	P
Age in years	0.09 (−0.10, 0.28)	0.35
Male sex	−1.80 (−8.24, 4.63)	0.58
Black race	−11.36 (−17.92, −4.79)	<0.01
Hispanic	−7.09 (−18.99, 4.80)	0.24
Non-US birth	−7.13 (−14.53, 0.27)	0.07
Winter enrollment	−12.93 (−20.02, −5.85)	<0.01
TB disease	−8.50 (−14.58, −2.41)	<0.01