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Table 3 Primary outcome (treatment success) - intention to treat and exploratory analyses

From: Economic support to improve tuberculosis treatment outcomes in South Africa: a pragmatic cluster-randomized controlled trial

Outcome Intervention group (%) Control group (%) Risk difference (%) (95% confidence interval)a P
Treatment success/Intention to treat analysis 1,606/2,107 (76.2) 1,402/1,984 (70.7) 5.6 (−1.2, 12.3) 0.107
Treatment success/Exploratory analysis 1,051/1,294 (81.2) 1,402/1,984 (70.7) 10.6 (3.7, 17.5) 0.003
  1. The estimated intra-cluster correlation co-efficient for our study for the primary outcome was 0.033. This is very close to the intra-cluster correlation co-efficient assumed in the sample size calculation (0.03). aEstimate from generalized linear model.