Fig. 4From: A comparison of methods to estimate the survivor average causal effect in the presence of missing data: a simulation studyFlow chart of participants in the Melbourne Collaborative Cohort Study, 1990 to 2007. Participants who were alive at the start of the follow-up study wave but did not attend or had missing data on age-related macular degeneration (AMD) at follow-up were regarded to have missing dataBack to article page