From: Imputation of a true endpoint from a surrogate: application to a cluster randomized controlled trial with partial information on the true endpoint
Imputation
Point estimate of OR
s.e.
Unstratified
1
0.70
0.116
2
0.73
0.115
3
0.67
0.108
4
0.85
0.123
5
0.72
Stratified
0.84
0.136
0.71
0.114
0.117
0.82
0.137