Summary of Study Population
The records of 3331 participants who initiated second-line ART from May
1, 2010 to May 1, 2016 were eligible for inclusion in this analysis.
1731(52.0%) were female and 1600 (48.0%) were male, 3321 (99.7%) were
Han and 3225 (96.8%) were farmer. Among the patients in this study, a
large proportion 2650 (79.6%) of the participants were infected HIV
through plasma donation, 2802 (84.1%) were HIV-positive longer than 3
years and 2514 (75.5%) received ART before initiating second-line ART.
The median CD4+ count was 337 (IQR:229) cells/µl. The demographic
characteristics of 3331 participants receiving second-line ART are shown
in Table 1.