Characteristics of patients in the ClinSurv- HIV Drug Resistance Study centers and of patients with available resistance test.

IQR: interquartile ranges;Other HIV-1 subtypes included subtype J (n = 1) and the circulating recombinant forms: 05_DF, 01_AE, 11_CPX, 03_AB, 13_CPX, 10_CD, 12_BF, 18_cpx, 27_cpx, 43_02G;