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Figure 4 | BMC Medical Research Methodology

Figure 4

From: Matching methods to create paired survival data based on an exposure occurring over time: a simulation study with application to breast cancer

Figure 4

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 .

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