Of all investigated reports, a total of 697,400 (12.3%) were missing information on age, sex, race/ethnicity, or prior maltreatment, with the majority of missing information involving race/ethnicity (7.0%). We addressed missing data on these four measures by generating five multiply imputed datasets. Given the low level of missing data in the NCANDS, alternative methods of dealing with missing data on these key variables produced very similar estimates.
