From: Multiple imputation by predictive mean matching in cluster-randomized trials
ICC | Cluster size | Clusters | PMM | PMM | PMM | PMM | PMM | PMM |
---|---|---|---|---|---|---|---|---|
ρ | m | k | FE | dist | RE | draw | avg | IGN |
0.03 | 4 | 100 | 91.5 | 94.4 | 94.0 | 95.1 | 94.5 | 94.7 |
8 | 10 | 94.5 | 94.1 | 94.9 | 95.1 | 93.5 | 94.7 | |
20 | 92.6 | 93.8 | 93.7 | 93.9 | 93.2 | 94.2 | ||
40 | 93.1 | 93.8 | 94.7 | 94.8 | 94.0 | 95.1 | ||
40 | 10 | 97.3 | 96.1 | 97.0 | 97.0 | 94.3 | 97.3 | |
20 | 95.8 | 93.7 | 94.6 | 95.1 | 91.7 | 95.1 | ||
40 | 95.4 | 94.8 | 94.8 | 94.6 | 92.1 | 95.3 | ||
400 | 4 | 100 | 100 | 100 | 100 | 99.7 | 100 | |
0.08 | 4 | 100 | 91.8 | 94.2 | 93.2 | 95.4 | 93.8 | 94.8 |
8 | 10 | 94.0 | 94.3 | 94.5 | 95.0 | 92.5 | 94.8 | |
20 | 92.4 | 93.3 | 94.3 | 94.5 | 91.9 | 94.0 | ||
40 | 93.3 | 92.7 | 93.8 | 95 | 92.2 | 95.0 | ||
40 | 10 | 97.3 | 96.5 | 97 | 96.8 | 93.0 | 97.3 | |
20 | 95.5 | 94.5 | 95.5 | 94.8 | 90.4 | 95.2 | ||
40 | 95.2 | 95.1 | 94.9 | 94.8 | 91.2 | 95.6 | ||
400 | 4 | 100 | 100 | 100 | 100 | 100 | 100 | |
Bolded values indicate coverage rates below 95%. | ||||||||
Italicized values indicate coverage rates above 95%. | ||||||||
Missing data were generated completely at random (MCAR) with a response rate of 60%, and data were imputed using an imputation model that correctly specified the covariate effects. |