Changes in weight and body mass index (BMI) associated with quality improvement. Changes in weight and body mass index (BMI) associated with quality improvement. (A and B) Show change in weight relative to beginning weight and age. Most patients have an increase in weight during the study period which is not due to growth. (C and D) Show similar improvements in BMI during the study period. The improvements were independent of cystic fibrosis center identities. Theodore G Liou et al. BMJ Open Diab Res Care 2016;4:e000183 ©2016 by American Diabetes Association