. Author manuscript; available in PMC: 2018 Dec 1.

Published in final edited form as: Clin Nutr. 2017 Mar 24;37(3):940–947. doi: 10.1016/j.clnu.2017.03.022

Table 3.

Associations between combinations of maternal vitamin B12 insufficiency status and plasma folate concentrations, and gestational diabetes mellitus (n=913)

	B12-insufficient (<221pmol/L)			B12-normal (≥221pmol/L)
	n	OR (95% CI)	P	n	OR (95% CI)	P
Folate, nmol/L (Median, IQR)
T1 (18.2, 11.6-24.4)	193	(reference)		110	(reference)
T2 (34.5, 32.3-37.1)	164	1.94 (1.04, 3.62)	0.036	141	0.82 (0.33, 2.04)	0.669
T3 (49.7, 44.5-58.5)	156	1.97 (1.05, 3.68)	0.034	149	1.42 (0.61, 3.30)	0.413

Effect estimates are presented as OR (95% CI) for GDM.

All models adjusted for maternal age, ethnicity, education, income, smoking, alcohol intake, physical activity, pre-pregnancy BMI, parity, family history of diabetes, previous occurrence of GDM, and plasma B6.