From: A comparison of missing data procedures for addressing selection bias in HIV sentinel surveillance data
Level of selection bias
Complete-case (Fixed-effects)
Complete-case (Mixed-effects)
Model 1
Model 2
Model 3
High
0.213
0.942
0.616
0.197
0
Moderate
0.114
0.952
0.766
0.566
0.007
Low
0.173
0.949
0.786
0.205
0.019