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Table 2 The constitution of HIV-1 subtypes in different transmission routes

From: Genetic diversity and drug resistance among newly diagnosed and antiretroviral treatment-naive HIV-infected individuals in western Yunnan: a hot area of viral recombination in China

Transmission route Subjects C URFs CRF01_AE B CRF08_BC CRF07_BC χ2 P*
Heterosexual 227 (100%) 89 (39.2%) 42 (18.5%) 43 (18.9%) 25 (11.0%) 24 (10.6%) 4 (1.8%) 13.801 0.013
Intravenous drug injection 52 (100%) 32 (61.5%) 9 (17.3%) 3 (5.8%) 7 (13.5%) 1 (1.9%) 0 (0%)   
Homosexual 2 (100%) 0 (0%) 0 (0%) 1 (50.0%) 0 (0%) 0 (0%) 1 (50.0%)   
Mother to child 4 (100%) 1 (25.0%) 1 (25.0%) 2 (50.0%) 0 (0%) 0 (0%) 0 (0%)   
Unknown 14 (100%) 7 (50.0%) 3 (21.4%) 4 (28.6%) 0 (0%) 0 (0%) 0 (0%)   
  1. *: Compared the proportions of subtypes between groups of heterosexual contact and intravenous drug injection.