CD4 and Opportunistic infection: However, the PHIV and BHIV groups had similar rates of baseline CD4+ cell count < 200 mm3 (22% vs. 16%, p = 0.348), opportunistic infections before pregnancy (22% vs. 19.5%, p = 0.712) and throughout gestation (9.3% vs. 3.0%, p = 0.124), and clinical hospital admissions (19.5% vs. 16%, p = 0.603).