PS 14-83 EFFECT OF SITE OF WAIST MEASUREMENT ON THE PREVELANCE OF METABOLIC SYNDROME

Objective: To study and correlate the variation in prevalence of metabolic syndrome depending on the site of waist measurement and to study the effect of gender on the prevalence of metabolic syndrome with variation of site of waist measurement. Design and Method: 151 patients of metabolic syndrome were enrolled in this study. This was a prospective, observational and non-interventional study. Patients with gross ascites, pregnancy, substance abuse & age < 20 & > 70 years were excluded from study. Waist circumference (WC) of each study subject was taken at four different sites namely: 1. Immediately below the lowest rib (WC1), 2. The narrowest waist (WC2) 3. The midpoint between the lowest rib & the iliac crest (WC3), and 4. Immediately above the iliac crest (WC4). Results: The mean WC was maximum when measured at WC4 in both male and female groups. In males it was 97.720 ± 4.063 cm and in females it was 90.542 ± 6.846 cm. In males, the sensitivity of detection of metabolic syndrome was maximum at WC4 (96.25%) and minimum at WC2 (64.75%), at WC1 it was 83.75% & at WC3 it was 88.75%. In females, the sensitivity of detection of metabolic syndrome was maximum at WC4 (98.59%). & minimum at WC2 (74.64 %.) it was 85.91% at WC1 and it was 85.91% at WC3. Blood pressure was found to highest at the site of maximum WC. Conclusions: The sensitivity of detection of metabolic syndrome was maximum when WC was measured at WC4 where it was 97.35% and minimum at WC 2 (71.52%). WC4 is statistically the best site for detection of metabolic syndrome in whole population sample and in females but in males the sensitivity is maximum at WC4 but it is not statistically significant.