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Table 2 Details of the patterns of missingness in the ovarian cancer study 18

From: Comparison of imputation methods for handling missing covariate data when fitting a Cox proportional hazards model: a resampling study

Pattern (R i ) Stage POST-RT Age Frequency Probability (p i ) Cumulative probability
0 1 1 1   
1 1 1 0 0.08 0.08
2 1 0 1 0.17 0.25
3 1 0 0 0.04 0.29
4 0 1 1 0.25 0.54
5 0 1 0 0.04 0.58
6 0 0 1 0.34 0.92
7 0 0 0 0.08 1.00
% missing out of total incomplete cases 71 64 22   
  1. Key: 1 = observed and 0 = missing