Neck circumference as an alternative measure of central obesity among pre-hypertensive adults

There is a dearth of cut-offs of neck circumference (NC) to define central obesity among pre-hypertensive adults. Primary aim is to find the association of NC and waist circumference (WC) among pre-hypertensive adults and to find optimal cut-offs of NC to predict central obesity among pre-hypertensive adults. The present cross-sectional study was conducted among 666 adults (aged 20-49 years) belonging to the Bengalee Hindu Caste Population and residing in West Bengal. Height, weight, WC, NC and blood pressure were measured. Linear regression analysis was performed to find the association of NC and WC. Receiver Operating Characteristic (ROC) curve analysis was performed to yield optimal cut-offs of NC for predicting central obesity among pre-hypertensive adults. NC and WC showed a strong correlation among both pre-hypertensive adult males (r=0.732) and females (r=0.748). The optimal cut-offs of NC to define central obesity among the subjects were ≥37.1 cm for males and ≥33.8 cm for females. The area under curve (AUC) was .755 for males and .779 for females. NC can be used as an alternate anthropometric measure to define central obesity among pre-hypertensive adults.