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Table 3 Differences in obesity prevalence within income and education groups: joint Canada-United States survey of health, 2002/2003

From: Cross-national comparison of socioeconomic inequalities in obesity in the United States and Canada

  All Among women only Among men only
  APRa (95 % CI) APRa (95 % CI) APRa (95 % CI)
U.S. vs. Canada    
 By Income    
 First quintile (lowest) 1.48 (1.22 - 1.81) 1.72 (1.33 - 2.22) 1.22 (0.90 - 1.67)
 2nd quintile 1.20 (0.98 - 1.48) 1.51 (1.13 - 2.01) 0.96 (0.71 - 1.30)
 3rd quintile 1.16 (0.92 - 1.48) 1.28 (0.92 - 1.80) 1.04 (0.76 - 1.43)
 4th quintile 1.17 (0.93 - 1.48) 1.62 (1.11 - 2.36) 0.94 (0.71 - 1.25)
 5th quintile 1.12 (0.86 - 1.46) 1.39 (0.89 - 2.17) 1.05 (0.76 - 1.44)
 By education    
 < High school 1.24 (0.99 - 1.55) 1.85 (1.30 - 2.62) 0.88 (0.64 - 1.21)
 High school 1.36 (1.13 - 1.63) 1.56 (1.19 - 2.04) 1.22 (0.96 - 1.56)
 Technical/trade 1.38 (1.09 - 1.75) 1.54 (1.10 - 2.14) 1.20 (0.86 - 1.68)
 University/college 1.04 (0.85 - 1.27) 1.22 (0.91 - 1.65) 0.94 (0.72 - 1.21)
  1. APR Adjusted prevalence ratios
  2. Analyses among all: Income - 3346 Americans, 2221 Canadians; Education – 3021 Americans, 2087 Canadians
  3. Analyses among women: Income - 2068 Americans, 1309 Canadians; Education – 1818 Americans, 1205 Canadians
  4. Analyses among men: Income: 1278 Americans, 912 Canadians; Education –1203 Americans, 882 Canadians
  5. Bolded estimates are statistically significant at p ≤ 0.05
  6. aa Referent outcome: normal weight. Odds ratios adjusted for age, age2, foreign-birth, race, marital status, and health insurance