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HRs for the risk of detection of 3TC, PI, NNRTI, and NRTI resistance mutations in multivariable models adjusted for baseline demographics, pVL, and CD4 count. Stratified adherence levels of (1) <95% with 0 or 1 normal drug levels, (2) <95% with 2 normal drug levels, and (3) ≥95% with 0 or 1 normal drug levels were compared with the (4) ≥95% with 2 normal drug levels (HR 1.0). Results are reported as HRs (bars) with 95% CIs (lines).
