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.
Survival curves by treatment status for pulmonary tuberculosis (PTB) at baseline, unadjusted (1a), and reweighted for confounding only (1b), among 7512 individuals initiating HAART in Johannesburg, South Africa between 1 April
Number at risk changes due to (primarily) administrative censoring (end of follow-up), and losses to follow-up.
