Relationship of BMI z score to fat percent and fat mass in multiethnic prepubertal children

Summary Objective The objective of the study is to examine the validity of body mass index z score (zBMI) as a measure of percent body fat in prepubertal children. Methods One hundred eleven multiethnic, healthy, Tanner 1 children aged 6–12 years had fat percent and fat mass measured by the four‐compartment method as part of the Paediatric Rosetta Body Composition Cohort. Multiple regression models were developed with fat percent as the...