Maternal and neonatal outcomes of pregnancies after metabolic bariatric surgery: a retrospective population-based study.

Indeed, a study with a similar design to ours but with 100 times fewer cases reported similar positive ORs for stillbirth and neonatal death that did not reach statistical significance. 9 Increased perinatal mortality was also reported in a meta-analyses of observational studies. 15 Although our results were statistically significant, the risk difference was small, representing a limited number of cases.

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