We included all the variables used for imputation in the analysis model, and then performed five imputations, followed by another 30 imputations, after which we compared the results with the complete case analysis.
Although it was physically unfeasible for us to collect all the original data without imputation, in the present meta-analysis we considered the potential impact on the review result through a sensitivity analysis in terms of the influence of imputation.
Patterns of missing data will be explored prior to analysis, and accounted for in the analysis by imputation methods [ 61].
If data are missing to a sufficient extent, the use of appropriate imputation techniques will be considered to allow for this in the analysis.
The purpose of this study was to develop a self-assessment tool for evaluating the quality of services provided in nursing homes in Japan and to test the validity of the imputation method for the analysis of missing data.
As shown in Fig S1, 4,340 study members were eligible for both the longitudinal latent class analysis and multiple imputation procedures and were included in the analysis.
The imputations and the analysis were performed using the MI/ICE suite in Stata with 100 imputations.
Dropouts (essentially, participants who withdraw consent for continued follow-up) will be included in the analysis by modern imputation methods for missing data.
No imputation was performed for missing data, therefore the denominator used in the analysis varied for each variable.
Imputation of unmapped SNP is based on single-locus phasing and imputation and segregation analysis and therefore gives an indication as to the power of this component for the purposes of imputation in comparison to the other components, which make explicit use of haplotypes.
Estimates of the regression coefficients for the complete case analysis and the four multivariate normal imputation models are shown in Table 1.
