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Table 1 Outcome and Competing Risk Definitions

From: Comparison of atazanavir/ritonavir and darunavir/ritonavir based antiretroviral therapy for antiretroviral naïve patients

Outcome Definition Competing Risks
Primary Analysis
Regimen Failure First A (includes B1) or B2 death
Secondary Analyses
Virologic Failure First A (includes B1) B2, death
Discontinuation Due to Virologic Failure First B1 B2, death
Discontinuation Due to Other Reasons First B2 A (includes B1), death
Virologic Suppression First C B, death
  1. A. Virologic Failure
  2. B. Discontinuation (hierarchically classified as B1: Due to virologic failure, or B2: Due to other reasons)
  3. C. Virologic Suppression