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. 2021 Jun 1;21:111. doi: 10.1186/s12874-021-01308-8

Table 4.

Hazard ratio and 95% Bootstrap confidence interval (BCI) for the six simulated trials in Table 3

Results based Results based on reconstructed IPD
Curve on true IPD IPDfromKM DigitizeIt ScanIt
1 0.469 [0.369, 0.594] 0.487 [0.379, 0.627] 0.470 [0.366, 0.597] 0.474 [0.368, 0.593]
2 0.408 [0.288, 0.554] 0.410 [0.281, 0.570] 0.403 [0.278, 0.566] 0.407 [0.277, 0.546]
3 0.699 [0.557, 0.876] 0.706 [0.560, 0.873] 0.713 [0.561, 0.882] 0.707 [0.563, 0.871]
4 1.081 [0.768, 1.481] 1.072 [0.764, 1.491] 1.076 [0.758, 1.474] 1.064 [0.768, 1.470]
5 0.767 [0.602, 0.971] 0.780 [0.596, 0.996] 0.778 [0.589, 0.991] 0.773 [0.592, 0.990]
6 0.486 [0.345, 0.653] 0.485 [0.343, 0.665] 0.486 [0.349, 0.657] 0.483 [0.340, 0.653]