Table 4 Adjusted incidence a and risk ratios of obesity b and extreme obesity c among adults aged ≥18 years, by selected socio-demographic characteristics and behavioral factors, Behavioral Risk Facto Surveillance System: United States, 2009
Obesity (BMI ≥ 30.0 kg/m2) | Extreme obesity (BMI ≥ 40.0 kg/m2) | |||||
|---|---|---|---|---|---|---|
Characteristic/behavioral factor | Adjusted incidence | Risk ratio | Adjusted incidence | Risk ratio | ||
% (SE) | Ratio | (95% CI) | % (SE) | Ratio | (95% CI) | |
Age group (years) | ||||||
18-29 | 6.4 (0.37) | 1.0 d | 1.2 (0.15) | 1.0 | ||
30-49 | 4.8 (0.16) e | 0.8 | (0.7, 0.9) | 0.9 (0.06) | 0.7 | (0.6, 1.0) |
50-69 | 3.3 (0.11) | 0.5 | (0.5, 0.6) | 0.5 (0.03) | 0.4 | (0.3, 0.6) |
≥ 70 | 1.5 (0.10) | 0.2 | (0.2, 0.3) | 0.2 (0.04) | 0.2 | (0.1, 0.3) |
Sex | ||||||
Women | 5.4 (0.14) | 1.0 | 0.9 (0.05) | 1.0 | ||
Men | 3.2 (0.12) | 0.6 | (0.5, 0.6) | 0.6 (0.05) | 0.6 | (0.5, 0.8) |
Race/ethnicity | ||||||
White, non-Hispanic | 3.4 (0.09) | 1.0 | 0.6 (0.04) | 1.0 | ||
Black, non-Hispanic | 6.0 (0.41) | 1.8 | (1.5, 2.0) | 0.8 (0.08) | 1.3 | (1.1, 1.6) |
Hispanic | 5.5 (0.37) | 1.6 | (1.4, 1.9) | 1.0 (0.15) | 1.5 | (1.1, 2.1) |
Educational level | ||||||
< High school | 5.1 (0.34) | 1.0 | 0.9 (0.12) | 1.0 | ||
High school | 4.8 (0.20) | 0.9 | (0.8, 1.1) | 0.8 (0.07) | 0.9 | (0.6, 1.2) |
Some college | 4.2 (0.17) | 0.8 | (0.7, 1.0) | 0.7 (0.06) | 0.7 | (0.5, 1.0) |
College graduate | 2.9 (0.13) | 0.6 | (0.5, 0.7) | 0.5 (0.05) | 0.5 | (0.4, 0.7) |
Census region | ||||||
Northeast | 4.1 (0.22) | 1.0 | 0.6 (0.07) | 1.0 | ||
Midwest | 4.1 (0.16) | 1.0 | (0.9, 1.1) | 0.7 (0.06) | 1.1 | (0.8, 1.4) |
South | 4.3 (0.17) | 1.1 | (0.9, 1.2) | 0.9 (0.07) | 1.4 | (1.1, 1.8) |
West | 3.8 (0.21) | 0.9 | (0.8, 1.1) | 0.6 (0.08) | 0.9 | (0.7, 1.3) |
Territory | 3.4 (0.42) | 0.8 | (0.6, 1.1) | 0.3 (0.10) | 0.5 | (0.3, 1.0) |
Leisure-time physical activity | ||||||
No | 5.1 (0.19) | 1.0 | 1.0 (0.07) | 1.0 | ||
Yes | 3.7 (0.11) | 0.7 | (0.7, 0.8) | 0.6 (0.04) | 0.6 | (0.5, 0.7) |
≥ 5 times of fruits and vegetables per day | ||||||
No | 4.1 (0.11) | 1.0 | 0.7 (0.04) | 1.0 | ||
Yes | 3.9 (0.18) | 0.9 | (0.8, 1.0) | 0.6 (0.07) | 0.9 | (0.7, 1.1) |
Smoking | ||||||
Nonsmoker | 3.5 (0.11) | 1.0 | 0.7 (0.05) | 1.0 | ||
Former smoker | 5.0 (0.20) | 1.4 | (1.3, 1.6) | 0.8 (0.07) | 1.2 | (1.0, 1.5) |
Current smoker | 4.8 (0.23) | 1.4 | (1.2, 1.6) | 0.7 (0.08) | 1.0 | (0.8, 1.3) |
Alcohol drinking | ||||||
No drinking | 4.4 (0.14) | 1.0 | 0.8 (0.05) | 1.0 | ||
Any drinking | 3.8 (0.14) | 0.9 | (0.8, 1.0) | 0.6 (0.05) | 0.8 | (0.6, 0.9) |
Heavy drinking | 3.8 (0.40) | 0.9 | (0.7, 1.1) | 0.7 (0.20) | 0.9 | (0.5, 1.6) |
Baseline BMI (kg/m2) | ||||||
11.7-24.9 | 0.7 (0.06) | 1.0 | -f | - f | ||
25.0-27.4 | 3.7 (0.19) | 5.5 | (4.4, 6.8) | - | - | - |
27.5-29.9 | 14.4 (0.37) | 21.6 | (17.8, 26.2) | - | - | - |
11.7-29.9 | -g | -g | 0.1 (0.02) | 1.0 | ||
30.0-32.4 | - | - | - | 0.5 (0.10) | 6.6 | (3.6, 12.1) |
32.5-34.9 | - | - | - | 1.0 (0.14) | 13.9 | (8.3, 23.5) |
35.0-37.4 | - | - | - | 3.4 (0.28) | 48.5 | (30.2, 77.9) |
37.5-39.9 | - | - | - | 11.4 (0.85) | 161.6 | (101.0, 258.7) |