Fig. 2From: Recommendations for the analysis of individually randomised controlled trials with clustering in one arm – a case of continuous outcomesSummary of models for the analysis of iRCTs with clustering in one arm only y denotes the continuous outcome, i is the patient indicator, j is the cluster indicator, t is the treatment indicator variable (t=1 for the treatment arm and t=0 for the control arm), θ is treatment effect, ε, u and r are error termsBack to article page