Statistical analysis
death, Death
REGRESSION, EVENTS
Descriptive statistics were used to summarise participant characteristics at randomisation (baseline). The time at risk was calculated as the duration from randomisation until the earliest of the following events: attrition, death, or 24 months post-randomisation. Kaplan–Meier method was used to estimate the cumulative incidence of attrition, overall and stratified by referral source. To identify factors associated with attrition, univariable and multivariable Cox regression models were fitted. Death was considered as a competing risk in this study. However, no participants died during the follow-up period. The multivariate model incorporated all covariates of interest.The initial multivariate model incorporated all covariates with a 