Table 3.
Differences in obesity prevalence within income and education groups: joint Canada-United States survey of health, 2002/2003
| 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) |
APR Adjusted prevalence ratios
Analyses among all: Income - 3346 Americans, 2221 Canadians; Education – 3021 Americans, 2087 Canadians
Analyses among women: Income - 2068 Americans, 1309 Canadians; Education – 1818 Americans, 1205 Canadians
Analyses among men: Income: 1278 Americans, 912 Canadians; Education –1203 Americans, 882 Canadians
Bolded estimates are statistically significant at p ≤ 0.05
aa Referent outcome: normal weight. Odds ratios adjusted for age, age2, foreign-birth, race, marital status, and health insurance