Table 1 Recommended number of imputations needed for varying fractions of missing data (Graham[9])
From: Model development including interactions with multiple imputed data
Fraction of missing data | 0.1 | 0.3 | 0.5 | 0.7 | 0.9 |
Number of imputations | 20 | 20 | 40 | 100 | >100 |