. Author manuscript; available in PMC: 2022 Sep 20.

Published in final edited form as: Acta Obstet Gynecol Scand. 2021 Jul 14;100(10):1885–1892. doi: 10.1111/aogs.14217

Table 4.

Crude and adjusted odds ratios (OR) for giving birth to a large-for-gestational-age (LGA) placenta and a small-for-gestational-age (SGA) placenta according to maternal diabetes status ^a

		Odds ratio LGA					Odds ratio SGA
Diabetes status	Number with LGA	Crude OR	95% CI	OR^b	95% CI	Number with SGA	Crude OR	95% CI	OR^b	95% CI
Without diabetes	29 164					31 008	Ref
Diabetes type 1	440	4.5	4.0–5.1	4.2	3.7–4.7	65	0.4	0.4–0.6	0.5	0.4–0.6
Diabetes type 2	166	2.9	2.5–3.4	2.1	1.8–2.5	51	0.7	0.5–0.9	0.8	0.6–1.1
Gestational diabetes	2013	1.9	1.8–2.0	1.6	1.5–1.6	829	0.7	0.6–0.7	0.8	0.7–0.8

Pregnancies without diabetes were used as the reference group. Included were 319 076 singleton pregnancies in Norway during the period 2009–2017.

Adjustment was made for pre-pregnancy maternal body mass index.