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Table 3 Age-standardised prevalence (%: with 95% confidence intervals) for each obesity category, as defined by international BMI and/or WC thresholds

From: Increases in waist circumference independent of weight in Mongolia over the last decade: the Mongolian STEPS surveys

  2005 2009 2013
Men
 Not obese 87.4 (84.6 to 89.8) 81.4 (77.9 to 84.5) 77.6 (75.2 to 79.9)
 Obese by WC only 1.8 (1.1 to 3.0) 2.8 (2.0 to 4.0) 4.8 (3.7 to 6.3)
 Obese by BMI only 2.7 (1.7 to 4.3) 4.5 (3.1 to 6.5) 4.0 (2.9 to 5.4)
 Obese by both BMI and WC 8.0 (6.2 to 10.3) 11.2 (8.6 to 14.5) 13.6 (11.5 to 16.0)
Women
 Not obese 64.6 (61.6 to 67.5) 55.7 (52.6 to 58.6) 46.7 (43.6 to 49.9)
 Obese by WC only 16.5 (13.6 to 19.8) 24.4 (22.0 to 27.0) 26.8 (23.3 to 30.7)
 Obese by BMI only 2.4 (1.5 to 3.6) 1.1 (0.6 to 2.0) 1.0 (0.6 to 1.5)
 Obese by both BMI and WC 16.5 (14.5 to 18.8) 18.8 (16.3 to 21.6) 25.5 (22.6 to 28.6)
Total
 Not obese 76.5 (74.6 to 78.3) 68.7 (66.3 to 71.0) 62.1 (59.6 to 64.6)
 Obese by WC only 8.9 (7.4 to 10.6) 13.5 (12.0 to 15.0) 15.9 (13.6 to 18.4)
 Obese by BMI only 2.6 (1.7 to 3.7) 2.8 (2.0 to 4.1) 2.5 (1.9 to 3.2)
 Obese by both BMI and WC 12.1 (10.7 to 13.6) 15.0 (12.8 to 17.5) 19.6 (17.7 to 21.6)
  1. Abbreviations: WC waist circumference, BMI body mass index
  2. Prevalence estimates are represented as percentages
  3. International BMI threshold for obesity is defined as BMI of 30 kg/m2 (general obesity)
  4. International WC threshold for obesity is defined as the “substantially increased risk” threshold of ≥102 cm for men and ≥88 cm for women (abdominal obesity)
  5. Not obese (BMI < 30, WC < 102 for men, WC < 88 for women), obese by WC only (BMI < 30, WC ≥ 102 for men, WC ≥ 88 for women), obese by both BMI and WC (BMI ≥ 30, WC ≥ 102 for men, WC ≥ 88 for women) and obese by BMI only (BMI ≥ 30, WC < 102 for men, WC < 88 for women)