Magnus MC, Morken NH, Wensaas KA, et al. - Researchers herein aimed to examine the risk of miscarriage according to 25 different chronic diseases diagnosed prior to pregnancy using linked data from Norwegian national registries (including 593,009 pregnancies). Overall findings suggest that risk of miscarriage was largely unaffected by maternal chronic diseases, however conditions related to cardiometabolic health associate with the risk of miscarriage. Hypoparathyroidism, Cushing syndrome, Crohn’s disease, and endometriosis were identified as the other conditions linked with risk of miscarriage.