Figure 3.

Adjusted RRs for pancreatic cancer associated with a 5 kg/m² higher young adulthood BMI (weighted mean age of 20.9 years) in meta-analysis of CKB and four published studies. Boxes represent the RRs associated with a 5 kg/m² higher BMI at young adulthood for individual studies, with the size of the box inversely proportional to the variance of the logRR. Open boxes represent previously published studies, and the black box represents CKB. Diamonds represent summary RRs. Within categories, RRs are ordered according to their year of publication. Estimates and 95% CI of the summary RRs are in bold. Heterogeneity between studies was assessed by I² and Cochran’s Q test. BMI, body mass index; CKB, China Kadoorie Biobank; RRs, relative risks.