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ORIGINAL ARTICLE
Year : 2017  |  Volume : 21  |  Issue : 6  |  Page : 803-808

Neck circumference as a marker of overweight and obesity and cutoff values for Bangladeshi adults


1 Department of Endocrinologyand Diabetes, National Healthcare Network, Dhaka, Bangladesh
2 Department of Medicine, Green Life Medical College and Hospital, Dhaka, Bangladesh
3 Maternal and Child Health Division, ICDDR'B, Dhaka, Bangladesh
4 Department of Medicine, MARKS Medical College and Hospital, Dhaka, Bangladesh
5 Department of Medicine, Sapporo Dental College and General Hospital, Dhaka, Bangladesh
6 Department of Medicine, Ibrahim General Hospital, Dhaka, Bangladesh
7 Department of Endocrinology, Ibrahim Medical College and BIRDEM General Hospital, Dhaka, Bangladesh
8 Department of Endocrinology and BIRDEM Academy, Ibrahim Medical College and BIRDEM General Hospital, Dhaka, Bangladesh

Correspondence Address:
Nazmul Kabir Qureshi
Department of Endocrinology and Diabetes, National Health Care Network, Dhaka
Bangladesh
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijem.IJEM_196_17

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Objective: There are several methods of assessing overweight and obesity. Several studies conducted in different populations indicate that neck circumference (NC) can be used as a simple measure of overweight and obesity. This study was conducted to evaluate NC as a marker of overweight and obesity and to determine respective cutoff values for Bangladeshi male and female participants. Research Design/Materials and Methods: This cross-sectional observational study was conducted with during July 2013–June 2014 among randomly selected 871 Bangladeshi participants (male = 496 [56.9%], female = 375 [43.1%], aged >18 years) who visited Outpatient Department of United Hospital, Bangladesh Institute of Research and Rehabilitation in Diabetes, Endocrine and Metabolic disorders, primary health-care centers located in Dhaka, Savar, Gazipur. NC of participants was taken in centimeter to the nearest 1 mm, using plastic tape measure. Main outcome included NC, waist circumferences (WC), body mass index (BMI), and waist: hip ratio (WHR). Results: Pearson's correlation coefficients indicated a significant association between NC and height (men, r = 0.33; women, r = 0.28; P < 0.0001), weight (men, r = 0.61; women, r = 0.55; P < 0.0001), BMI (men, r = 0.51; women, r = 0.41; P < 0.0001), WC (men, r = 0.61; women, r = 0.46; P < 0.0001), hip circumference (men, r = 0.61; women, r = 0.44; P < 0.0001), WHR (men, r = 0.22; women, r = 0.18; P < 0.0001). Receiver operating characteristic curve analysis showed that NC ≥34.75 cm in men (area under curve [AUC]: 0.77; P < 0.001) and ≥31.75 cm in women (AUC: 0.62; P < 0.001) were the best cutoff value for BMI ≥23 (overweight). NC ≥35.25 cm in men (AUC: 0.82; P < 0.001) and NC ≥34.25 cm in women (AUC: 0.76; P < 0.001) were the best cutoff value for BMI ≥27.5 (obesity). NC ≥35.25 cm in male (AUC: 0.83; P < 0.001) and NC ≥31.25 cm in women (AUC: 0.65; P < 0.001) were the best cutoff value for WC >90 cm in men and > 80 cm in women, respectively. NC ≥34.45 cm in male (AUC: 0.59; P= 0.001) and NC ≥31.25 cm in women (AUC: 0.66; P = 0.008) were the best cutoff value for WHR >0.9 in men and >0.8 in women, respectively. Conclusion: NC measurement is a simple, convenient, inexpensive screening measure to identify overweight and obese participants. Men with NC ≥34.75 cm and women with NC ≥31.75 cm are to be considered overweight while men with NC ≥35.25 cm and women with NC ≥34.25 cm are to be considered obese. NC ≥35.25 cm in male and NC ≥31.25 cm in women were the best cutoff value for abdominal obesity.


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