Table 1.

Anthropometric and biological characteristics of HIV-positive and HIV-negative women at study enrollment, Rwanda^*

Characteristics	HIV positive (n = 200)	HIV negative (n = 50)	P value
Age, years	36.9 ± 9.1	37.2 ± 14.4	0.83
Body mass index	24.7 ± 5	25.9 ± 6.9	0.001
Mean hemoglobin concentration (g/dL)	12.5 ± 2.9	13.8 ± 1.4	0.001
CD4 lymphocyte count, cells/μL	503 ± 21	–	–
Serum vitamin B12, ng/L	341 ± 15	457 ± 52	0.003
Serum iron, μg/dL	76 ± 34	67 ± 41	0.09
Serum folic acid, ng/mL	10.2 ± 6.2	11.4 ± 3.3	0.056

^*Values are mean ± SD. HIV = human immunodeficiency virus. Body mass index is weight (kg) divided by the square of height (m²).