Relationship between threatened miscarriage and gestational diabetes mellitus

Table 6 Association between the severity of maternal hyperglycemia and threatened miscarriage: Ordinal logistic regression

	Normal (n = 840)	Borderline GDM (n = 480)	GDM (n = 247)	OR (95% CI)	p	Adjusted OR (95% CI)	p
Threatened miscarriage					0.003		< 0.001
Negative	719 (85.6)	424 (88.3)	230 (93.1)	ref		ref
Positive	121 (14.4)	56 (11.7)	17 (6.9)	0.63 (0.47–0.86)		0.94 (0.76–1.16)

Statistical analyses were performed by univariable and multivariable logistic regression
The data were adjusted for maternal age (< 35 years, ≥35 years), parity, history of prior GDM, pre-pregnancy BMI, progesterone therapy, and insulin therapy

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