Table 1.

Estimated HR of the intervention effect in the Botswana Combination Prevention Project. Methods considered include randomization-based inference (Randomization), both marginal and pair-stratified, a Weibull model with a frailty term for community (Weibull, Frailty-Cluster), with a frailty term for pair (Weibull, Frailty-Pair), and a pair-stratified Weibull model (Weibull, Pair-Stratified).

Methods	HR	95% CI	p-value
Randomization, Marginal	0.640	0.374–1.039	0.064
Randomization, Pair-Stratified	0.646	0.369–1.054	0.068
Weibull, Frailty-Cluster	0.640	0.432–0.947	0.025
Weibull, Frailty-Pair	0.641	0.453–0.905	0.012
Weibull, Pair-Stratified	0.646	0.457–0.913	0.013