Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Vitamin D concentrations and the odds of tuberculin skin test conversion in the first 2 years of life. All models were adjusted for sex of the child, household tuberculosis exposure, breastfeeding, study site, and maternal HIV. Abbreviations: CI, confidence interval; HIV, human immunodeficiency virus.
