Table 2.
Prevalence ratios of obesity (Compared to Normal Weight) through the socioeconomic distributions of each country, joint Canada-United States survey of health, 2002/03
| All | Among women only | Among men only | |
|---|---|---|---|
| APRa (95 % CI) | APRa (95 % CI) | APRa (95 % CI) | |
| Inequities by Income | |||
| United States | |||
| First quintile (lowest) | 1.82 (1.52 - 2.19) | 2.17 (1.66 - 2.84) | 1.52 (1.17 - 1.98) |
| 2nd quintile | 1.54 (1.28 - 1.85) | 1.78 (1.36 - 2.33) | 1.35 (1.04 - 1.77) |
| 3rd quintile | 1.29 (1.06 - 1.58) | 1.35 (1.01 - 1.81) | 1.28 (0.97 - 1.67) |
| 4th quintile | 1.22 (1.01 - 1.48) | 1.29 (0.97 - 1.71) | 1.16 (0.90 - 1.48) |
| 5th quintile | (Ref) | (Ref) | (Ref) |
| Canada | |||
| First quintile (lowest) | 1.45 (1.10 - 1.91) | 1.79 (1.13 - 2.82) | 1.29 (0.91 - 1.83) |
| 2nd quintile | 1.46 (1.12 - 1.91) | 1.77 (1.12 - 2.79) | 1.32 (0.95 - 1.82) |
| 3rd quintile | 1.24 (0.94 - 1.63) | 1.46 (0.91 - 2.33) | 1.21 (0.87 - 1.69) |
| 4th quintile | 1.12 (0.84 - 1.49) | 1.06 (0.64 - 1.78) | 1.22 (0.88 - 1.68) |
| 5th quintile | (Ref) | (Ref) | (Ref) |
| Inequities by education | |||
| United States | |||
| < High school | 2.00 (1.68 - 2.38) | 2.39 (1.90 - 3.01) | 1.63 (1.25 - 2.13) |
| High school | 1.46 (1.27 - 1.68) | 1.55 (1.28 - 1.88) | 1.42 (1.16 - 1.73) |
| Technical/trade | 1.42 (1.19 - 1.69) | 1.53 (1.20 - 1.96) | 1.32 (1.01 - 1.71) |
| University/college | (Ref) | (Ref) | (Ref) |
| Canada | |||
| < High school | 1.59 (1.25 - 2.02) | 1.48 (1.00 - 2.18) | 1.54 (1.16 - 2.06) |
| High school | 1.24 (0.98 - 1.55) | 1.32 (0.93 - 1.87) | 1.18 (0.88 - 1.57) |
| Technical/trade | 1.13 (0.88 - 1.46) | 1.26 (0.88 - 1.82) | 1.08 (0.78 - 1.50) |
| University/college | (Ref) | (Ref) | (Ref) |
APR Adjusted prevalence ratios, Uni. University
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
aReferent outcome: normal weight. Odds ratios adjusted for age, age2, foreign-birth, race, marital status, health insurance (only in US) and interaction terms created by multiplying covariates by an indicator for country (i.e., age*United States, age squared*United States, foreign birth*United States, race*United States, marital status*United States)