Fig. 4From: Active plasma renin concentration throughout healthy and complicated pregnancy: a systematic review and meta-analysisThe ratio of means (ROM) of active plasma renin concentration (APRC) during pregnancy compared to nonpregnant women by gestational age. Shaded area represents the 95% confidence interval. The green data points represent healthy pregnancy; the red data points represent complicated pregnancy. Nonpregnant values were standardized as 1 and are represented by the dashed lineBack to article page