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Bland-Altman plots of limits of agreement in waist circumference between measurement sites. Parallel lines indicate the mean difference ± 2 SD; closed symbols for females, open for males. WCC = waist circumference assessed above the iliac crest, WC4 = waist circumference assessed 4 cm above the umbilicus; WCM = waist circumference assessed midway between the lowest rib and the iliac crest, WCR = waist circumference assessed beneath the lowest rib.
