While modern implementations of PCA and FA can handle imputed values, they require the imputed values to be consistent with an underlying stochastic model for the data.
If imputed values were not required in future imputations they were not used.
The median SF-6D score with imputed values did not differ from the median score without imputed values.
We imputed values missing due to discharge or errors using multiple imputation.
Imputed values had a moderate agreement, but odds ratios and classification accuracies of logistic regression equations were similar.
Imputed values were constrained to lie within the feasible range of values for each measure.
Neither the relative mean CVL nor variations in the mean changed when using the imputed values.
Prior imputed values were not used to impute subsequent values.
Suppose M sets of imputed values are generated.
In Figure 1 the x's represent the imputed values.
A sensitivity analysis without imputed values did not change results.
