Comparing type 1 and type 2 diabetes in pregnancy- similar conditions or is a separate approach required?

Background: Pregnancy in women with type 1 (T1DM) or type 2 diabetes (T2DM) is associated with increased risk. These conditions are managed similarly during pregnancy, and compared directly in analyses, however they affect women of different age, body mass index and ethnicity.

Methods: We assess if differences exist in pregnancy outcomes between T1DM and T2DM by comparing them directly and with matched controls.