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Table 4 Associations between the four definitions of obesity and odds of mobility disability

From: Visceral fat area is the measure of obesity best associated with mobility disability in community dwelling oldest-old Chinese adults

  N (%) Model 1 a Model 2 b Model 3 c
  OR (95% CI) OR (95% CI) OR (95% CI)
Obesity defined by visceral fat area
 Not obese 303 (51.4%) Ref. Ref. Ref.
 Obese 286 (48.6%) 2.38 (1.68, 3.38) 2.36 (1.61, 3.47) 2.04 (1.10, 3.77)
Obesity defined by body mass index
 Not obese 505 (85.7%) Ref. Ref. Ref.
 Obese 84 (14.3%) 2.22 (1.33, 3.72) 2.57 (1.38, 4.79) 1.43 (0.70, 2.94)
Obesity defined by waist circumference
 Not obese 218 (37.0%) Ref. Ref. Ref.
 Obese 371 (63.0%) 1.85 (1.27, 2.68) 1.61 (1.06, 2.44) 0.96 (0.56, 1.62)
Obesity defined by percent body fat
 Not obese 257 (43.6%) Ref. Ref. Ref.
 Obese 332 (56.4%) 2.07 (1.45, 2.94) 2.13 (1.44, 3.13) 1.29 (0.69, 2.40)
  1. OR odds ratio, CI confidence interval
  2. a Model 1: adjusted for age, sex, level of education
  3. b Model 2: adjusted for Model 1 and diabetes, stroke, heart diseases, arthritis, osteoporosis/hip fracture, cognitive impairment, sarcopenia
  4. c Model 3: adjusted for Model 2 and body mass index, waist circumference, percent body fat, visceral fat area