Table 3. Multivariate analysis with GDM as the dependent factor.

Variables	Univariate analysis		Multivariate analysis 1#		Multivariate analysis 2#
	OR (95% CI)	P value	OR (95% CI)	P value	OR (95% CI)	P value
Age	1.274 (1.241–1.308)	<0.001	1.279 (1.244–1.316)	<0.001	1.323 (1.223–1.430)	<0.001
BMI	1.213 (1.181–1.247)	<0.001	1.212 (1.177–1.247)	<0.001	1.252 (1.160–1.351)	<0.001
Parity
1	Reference	/	Reference	/	Reference	/
2	2.271 (1.844–2.797)	<0.001	2.306 (1.839–2.891)	<0.001	4.256 (2.344–7.725)	<0.001
HCMV positive	1.896 (1.502–2.394)	<0.001	1.851 (1.425–2.403)	<0.001
TNF-α	1.069 (1.025–1.115)	0.002			0.997 (0.886–1.123)	0.964
IL-6	1.011 (1.008–1.014)	<0.001			1.010 (1.002–1.018)	0.013
IL-1β	1.399 (1.348–1.452)	<0.001			1.410 (1.348–1.474)	<0.001

Notes.

1#: The independent factors include age, BMI, parity, and HCMV positive.

2#: The independent factors include age, BMI, parity, TNF-α, IL-6, and IL-1β.