The relationship between neck circumference and gestational diabetes mellitus in Iranian women

BACKGROUND: The aim of the present study was to assess the relationship between neck circumference and gestational diabetes. METHODS: This prospective study was conducted on 372 Iranian pregnant women. The criteria set by the American Diabetes Association through 2 h was used to classify subjects with regard to their gestational diabetes. At the 14–16th weeks of pregnancy, the neck circumference was measured. The maternal and fetal outcomes were measured as well. RESULTS: The adjusted logistic regression revealed that neck circumference was a predictor for gestational diabetes mellitus (OR = 1.20; 95% CI = 1.06, 1.34; P = 0.002). The ROC analysis depicted that the cut-off for neck circumference in indicating gestational diabetes was 34.3 cm, with the sensitivity of 53% and the specificity of 66%. CONCLUSION: The findings of the present study revealed that the neck circumference of ≥34.3 cm can be deemed as a predictor of gestational diabetes in the case of Iranian pregnant women.