Fig. 1From: Estimating time-varying exposure-outcome associations using case-control data: logistic and case-cohort analysesDiagram illustrating a case-cohort study showing survival times (black circles) and censoring times (lines not ending in a circle) in a prospective cohort, also showing the subcohort and the controls used for each case in the case-cohort analysis (grey circles). The full risk set for each case is indicated by the dotted linesBack to article page