Table 2.

Association Between Vitamin A Deficiency and Risk of Incident Tuberculosis Disease

Variable	Univariate ORa (95% CI) N = 311	P Value	Multivariate ORb (95% CI) N = 305	P Value
Body mass index, kg/m2
Underweight	2.89 (1.42–5.87)	.003	2.35 (1.18–4.65)	.01
Overweight	1.52 (.69–3.32)	.30	1.67 (.77–3.65)	.20
Normal	1.00		1.00
Use of antiretroviral therapy	1.02 (.62–1.66)	.95	1.24 (.77–2.01)	.38
Baseline C-reactive protein (ng/mL)c
Highest tertile	1.12 (.63–2.00)	.70	0.92 (.52–1.63)	.78
Middle tertile	0.86 (.45–1.65)	.66	0.77 (.40–1.46)	.42
Lowest tertile	1.00		1.00
Vitamin A deficiency (<20 µg/dL)	3.99 (2.41–6.60)	<.0001	3.59 (2.05–6.29)	<.0001

Abbreviations: CI, confidence interval; OR, odds ratio.

^aAdjusted for matching factors (age and gender).

^bAdjusted for matching factors (age and gender), body mass index, use of antiretroviral therapy, and baseline C-reactive protein levels.

^cN = 305.