Table 4.
Sensitivity | Specificity | Sample Size | Validation Percentb | Naive |
Validation |
Direct Maximum Likelihood |
Multiple Imputation |
||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Biasc | Coverd | MSEe | Bias | Cover | MSE | Bias | Cover | MSE | Bias | Cover | MSE | ||||
0.9 | 0.9 | 1,000 | 10 | 24 | 62 | 8 | −5 | 96 | 47 | −4 | 96 | 33 | 2 | 97 | 27 |
1,000 | 30 | 24 | 62 | 8 | −1 | 95 | 10 | −1 | 95 | 6 | −1 | 95 | 6 | ||
300 | 30 | 24 | 85 | 13 | −5 | 96 | 47 | −4 | 96 | 42 | 2 | 97 | 27 | ||
0.6 | 0.9 | 1,000 | 10 | 35 | 40 | 15 | −5 | 96 | 47 | −5 | 96 | 48 | −3 | 96 | 29 |
1,000 | 30 | 35 | 40 | 15 | −1 | 95 | 10 | −1 | 95 | 8 | −1 | 95 | 8 | ||
300 | 30 | 35 | 76 | 21 | −5 | 96 | 47 | −4 | 96 | 48 | −3 | 96 | 33 | ||
0.3 | 0.9 | 1,000 | 10 | 51 | 20 | 30 | −5 | 96 | 47 | −5 | 96 | 54 | −4 | 95 | 35 |
1,000 | 30 | 51 | 20 | 30 | −1 | 95 | 10 | −1 | 95 | 9 | −1 | 95 | 9 | ||
300 | 30 | 51 | 66 | 38 | −5 | 96 | 47 | −5 | 96 | 58 | −3 | 96 | 37 |
Abbreviation: MSE, mean squared error.
a Results are summarized over 10,000 simulations.
b Percent of all participants included in the validation subgroup.
c Bias was defined as 100 times the difference between the average estimated log odds ratio and the true log odds ratio.
d Confidence interval coverage was calculated as the percentage of simulations in which the estimated 95% Wald-type confidence limits included the true value.
e MSE was calculated as the sum of the bias squared and the variance.