Figure 2.
Relative geometric mean concentrations* of male IGFs and IGFBPs by BMI. p for heterogeneity is the heterogeneity of means between categories, tested using the F test. p for trend was calculated using the analysis of variance test, with categorical variables entered as linear values scored consecutively. *Relative to BMI 20.0–22.4 kg/m2, adjusted for study, age and height. #Significant heterogeneity by study p < 0.01. Abbreviations: IGF, insulin‐like growth factor; IGFBP, insulin‐like growth factor‐binding protein.