Table 5.
Weighted Associations of Survey Cycle and Class 3 Obesity Prevalence: 2005–2014a
| Survey Cycle | Sample Size | Odds Ratios (95% CI) | Predicted Margins, % (95% CI) | ||
|---|---|---|---|---|---|
| Adjusted for Age Group | Adjusted for Age Group, Race/Hispanic Origin Group, Smoking Status, and Educational Category | Adjusted for Age Group | Adjusted for Age Group, Race/Hispanic Origin Group, Smoking Status, and Educational Category | ||
| All b,c | |||||
| 2005–2006 | 4356 | 1 [Reference] | 1 [Reference] | 5.9 (5.1–7.0) | 5.9 (5.0–6.9) |
| 2007–2008 | 5550 | 0.96 (0.76–1.21) | 0.96 (0.75–1.22) | 5.7 (5.0–6.6) | 5.6 (4.8–6.6) |
| 2009–2010 | 5926 | 1.07 (0.89–1.30) | 1.08 (0.90–1.30) | 6.3 (5.9–6.8) | 6.3 (5.9–6.8) |
| 2011–2012 | 5181 | 1.08 (0.83–1.41) | 1.11 (0.85–1.45) | 6.4 (5.3–7.7) | 6.5 (5.4–7.8) |
| 2013–2014 | 5455 | 1.32 (1.02–1.72) | 1.36 (1.05–1.77) | 7.7 (6.4–9.2) | 7.8 (6.5–9.3) |
| Total | 26 468 | ||||
| Men d | |||||
| 2005–2006 | 2237 | 1 [Reference] | 1 [Reference] | 4.2 (3.3–5.3) | 4.2 (3.3–5.3) |
| 2007–2008 | 2746 | 1.00 (0.71–1.40) | 0.99 (0.70–1.40) | 4.2 (3.3–5.2) | 4.1 (3.3–5.2) |
| 2009–2010 | 2889 | 1.04 (0.78–1.40) | 1.04 (0.77–1.41) | 4.4 (3.8–5.1) | 4.4 (3.8–5.1) |
| 2011–2012 | 2585 | 1.05 (0.62–1.76) | 1.08 (0.64–1.82) | 4.4 (2.8–6.8) | 4.5 (2.9–6.9) |
| 2013–2014 | 2638 | 1.32 (0.93–1.87) | 1.33 (0.93–1.90) | 5.5 (4.3–6.9) | 5.5 (4.3–6.9) |
| Total | 13 095 | ||||
| Women e | |||||
| 2005–2006 | 2119 | 1 [Reference] | 1 [Reference] | 7.6 (6.2–9.2) | 7.5 (6.2–9.1) |
| 2007–2008 | 2804 | 0.94 (0.72–1.24) | 0.93 (0.70–1.25) | 7.2 (6.1–8.4) | 7.1 (5.9–8.5) |
| 2009–2010 | 3037 | 1.09 (0.85–1.40) | 1.09 (0.86–1.39) | 8.2 (7.3–9.2) | 8.2 (7.3–9.1) |
| 2011–2012 | 2596 | 1.10 (0.83–1.46) | 1.12 (0.86–1.46) | 8.3 (7.0–9.8) | 8.4 (7.2–9.7) |
| 2013–2014 | 2817 | 1.32 (0.98–1.79) | 1.37 (1.02–1.84) | 9.8 (8.1–11.8) | 10.0 (8.3–12.0) |
| Total | 13 373 | ||||
Abbreviation: BMI, body mass index.
BMI was calculated as weight in kilograms divided by height in meters squared. Class 3 obesity was defined as participants with a BMI of 40 or greater.
All of the models for both sexes combined include sex as a covariate.
Models for both sexes combined include significant interactions between race/Hispanic origin group and educational status and also between race/Hispanic origin group and smoking status.
For men, the model includes interactions between race/Hispanic origin group and educational status and also between educational status and smoking.
For women, the model includes an interaction between race/Hispanic origin group and smoking status.