Vitamin D deficiency is common among HIV-infected breastfeeding mothers in Pune, India, but is not associated with mother-to-child HIV transmission.

A recent report from Tanzania demonstrated an increased risk of being HIV infected or of dying at birth among children born to breastfeeding mothers with low baseline vitamin D levels. We conducted a nested case-control study among HIV-infected pregnant women in western India to confirm the association between maternal vitamin D levels and mother-to-child transmission (MTCT) of HIV. Vitamin D insufficiency and deficiency were common among HIV-infected pregnant women, but were not associated with mother to child HIV transmission at 1 year postpartum (adjusted odds ratio [AOR], 0.

Determination of a reference interval in a population.

The reference interval is the most widely used medical decision-making tool that separates healthy from diseased individuals. We briefly discuss the methods used to determine reference interval and its limitations.

Maternal tuberculosis: a risk factor for mother-to-child transmission of human immunodeficiency virus.

Background: Maternal human immunodeficiency virus (HIV) RNA load, CD4 cell count, breast-feeding, antiretroviral use, and malaria are well-established factors associated with mother-to-child transmission (MTCT) of HIV; the role of maternal tuberculosis (TB), however, has not been well established.

Methods: The study population was 783 HIV-infected Indian mother-infant pair participants in randomized and ancillary HIV-infected cohorts of the Six Week Extended-Dose Nevirapine (SWEN) Study, a study comparing extended nevirapine versus single-dose nevirapine, to reduce MTCT of HIV among breast-fed infants. Using multivariable logistic regression, we assessed the impact of maternal TB occurring during pregnancy and through 12 months after delivery on risk of MTCT.

Clinically significant anemia in HIV-infected pregnant women in India is not a major barrier to zidovudine use for prevention of maternal-to-child transmission.

Objectives: To determine the prevalence of anemia (serum hemoglobin <10 g/dL) and assess zidovudine use and toxicity in HIV-positive pregnant women in India.

Methods: From 2002 through 2006, 24,105 pregnant women in Pune were screened for HIV and anemia. As part of an infant prevention of mother-to-child transmission (PMTCT) trial, enrolled HIV-positive women (n = 467) were assessed for anemia and associated outcomes, comparing women receiving zidovudine for >or=2 weeks versus no zidovudine.