Figure 4From: Matching methods to create paired survival data based on an exposure occurring over time: a simulation study with application to breast cancer Number of subjects in the three possible groups. Number of subjects pertaining to the three possible subjects groups at each time t: the exposed subject (solid green line), the non-exposed subject who never will undergo the exposure (solid red line) and the non-exposed subject who will undergo the exposure (solid blue line). The dotted vertical green line represents the time of first exposure, i.e. the time of occurrence of the first pair; the dotted vertical blue line corresponds the time of the last perfect pair’s creation; and the dotted vertical red line corresponds the time of the last imperfect pair’s creation. Results obtained with the increasing then decreasing H R(t) configuration, without censoring and with β 12 ′ =(−0.2,−0.4,−0.8), β 13 =− β 12 and β 23 =− β 13 .Back to article page