Fig. 2From: Comparative effectiveness of recombinant human follicle-stimulating hormone alfa (r-hFSH-alfa) versus highly purified urinary human menopausal gonadotropin (hMG HP) in assisted reproductive technology (ART) treatments: a non-interventional study in GermanyStandardised mean differences before and after weighting. Covariates were considered to be balanced if the absolute value of the standardised mean difference was < 0.1Back to article page