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- Title
Validation of HF-Bioelectrical Impedance Analysis versus Body Mass Index in Classifying Overweight and Obese Pakistani Adults.
- Authors
Anwer, Rabia; Baig, Lubna Ansari; Musharraf, Mehjabeen
- Abstract
Purpose: To determine the validity of hand-to-foot bioelectrical impedance analysis (HF-BIA) versus body mass index (BMI) to assess overweight and obesity status in adults against a reference method, dual-energy x-ray absorptiometry (DXA). Patients and Methods: It is a validation study conducted on 206 Pakistani adults ≥ 20 years recruited through convenience sampling technique at PNS Shifa Hospital and Jinnah Post Medical Centre, Karachi, Pakistan. Results: HF-BIA showed better sensitivity of 90.1% and 100% specificity with no false positive, but 9% false negative as compared to BMI which indicated 80.3% sensitivity and 100% specificity with a false-negative rate of 19.6%.HF-BIA also showed better sensitivity 80.9– 97.1% with 100% specificity and PPV across all age groups. The correlation coefficient between BMI and DXA bf% (r=0.67) was moderate and less than the correlation coefficient between HF-BIA and DXA bf % (r=0.87). Kappa agreement showed weak to a fair agreement between BMI and DXA bf % (0.1 overall; 0.22 men; 0.14 women) compared to HF-BIA, which had a better agreement between BIA bf% and DXA bf% (0.43 overall; 0.46 men; 0.34 women). HF-BIA bf % demonstrated a better discriminatory power than BMI (AUC of ≥ 0.91) and was better predictor of body fat than BMI. Conclusion: HF-BIA is a more accurate method than BMI and may be used consistently throughout the country in primary care and research to identify the fat-based overweight and obese in the Pakistani population.
- Subjects
KARACHI (Pakistan); PAKISTANIS; BODY mass index; DUAL-energy X-ray absorptiometry; CONVENIENCE sampling (Statistics); BIOELECTRIC impedance
- Publication
Journal of Multidisciplinary Healthcare, 2023, Vol 16, p983
- ISSN
1178-2390
- Publication type
Article
- DOI
10.2147/JMDH.S378367