Summary for the risk of any hypertensive disorders of pregnancy (not defined) in women with GDM

Probably ineffective or harmful interventions Moderate‐quality evidence suggested that insulin possibly increased the risk of hypertensive disorders of pregnancy (not defined) compared with oral therapy. No conclusions possible: low‐ to very low‐quality evidence, or insufficient evidence to comment on the effectiveness, more evidence needed Moderate‐quality evidence showed no clear difference for metformin versus glibenclamide. Very low‐quality evidence showed no clear difference for glibenclamide versus placebo