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Table 1 Theory driven dichotomization

From: Dichotomization: 2 × 2 (×2 × 2 × 2...) categories: infinite possibilities

  Cutoff(s) OR (95% CI)
Current WHO/CDC recommendations   
   Overweight1 25 1.7 (1.6, 1.8)
   Obese1 30 1.2 (1.2, 1.3)
Historical cutoffs   
   1980 Dietary Guidelines2 Males: 26, Females: 25 1.7 (1.6, 1.8)
   1984 Health United States1 Males: 28, Females: 35 1.2 (1.1, 1.2)
   1985 NIH Consensus Development Panel, 1985 Health United States, Health People 20001 Males: 27.8,
Females: 27.3
1.5 (1.4, 1.5)
   1985 Dietary Guidelines, 1995 Dietary Guidelines2 25 1.7 (1.6, 1.8)
   1989 Committee on Diet and Health2, 3 Age specific (years): 19-24: 24, 25-34: 25,
35-44: 26, 45-54: 27,
55-65: 28, >65: 29
1.2 (1.1, 1.3)
   1990 Dietary Guidelines1, 3 Age specific (years): 19-34: 25, >=35: 27 1.3 (1.2, 1.4)
  1. 1 Comparing those with a value ≥ the cutoff to those with a value < the cutoff.
  2. 2 Comparing those with a value > the cutoff to those with a value ≤ the cutoff.
  3. 3 Excluded 1046 18 year olds.
  4. ORs measured the association between BMI and high cholesterol (>=200 mg/dl) and were obtained from logistic regression.
  5. (Historical cutoffs based on a review by Kuczmarski RJ, Flegal KM. Criteria for definition of overweight in transition: background and recommendations for the United States. Am J Clin Nutr. 2000;72(5):1074-81.)