Table 3.

Correlation between neck circumference and gestational diabetes mellitus risk factors (adjusted for age)

	Neck circumference
	r	P
Weight before pregnancy†	0.688	<0.001
BMI before pregnancy†	0.588	<0.001
Waist circumference†	0.475	<0.001
HbA1c‡	0.193	0.002
Triglyceride‡	0.106	0.092
1‐h glucose‡	0.054	0.394
FBG‡	0.052	0.414
2‐h glucose‡	0.051	0.421

^†A significant positive association between neck circumference and the indicated risk factor. ^‡An insignificant association between neck circumference and the indicated risk factor. BMI, body mass index; FBG, fasting blood glucose; GDM, gestational diabetes mellitus; HbA1c, hemoglobin A1c.