Fig. 3From: Survival analysis under imperfect record linkage using historic census dataEmpirical bias and model-based confidence intervals for \({\widehat{\alpha }}_{1}\): (1) MCAR, (2) is MAR with both \({T}_{i}\) and \({R}_{i}\) dependent on \({X}_{i}\) only, (3) MAR with \({T}_{i}\) dependent on \({X}_{i}\) and \({Z}_{i}\), while \({R}_{i}\) depends on \({X}_{i}\) only, (4) MAR with both \({T}_{i}\) and \({R}_{i}\) dependent on \({X}_{i}\) and \({Z}_{i}\) Back to article page