Estimates of the slope of the fitted line and of the proportion of explained variation from the model from the second stage.

CI - Confidence Interval; R2trial - trial-level proportion of variation. aThe month 1 endpoint evaluated was a positive culture with heavy growth (at least 20 colonies). The month 2 and 3 endpoints evaluated were a positive culture with any growth (at least 1 colony). bDue to similarities in regimens in the first few months of treatment, not all 37 treatment comparisons could be used for each analysis.