TABLE 3.
Odds Ratio from Logistics Models of Any Disability: Effects of Smoking (Reports in Italics Are the Implied Average Annual Percentage Change in Disability)
| Explanatory Variables | Model 1 | Model 2 |
|---|---|---|
| Trend∼ | 0.9897* | 0.9898** |
| −1.03 | −1.02 | |
| Age | ||
| 70–74 (reference group) | ||
| 75–79 | 1.4939** | 1.5211** |
| 80–84 | 2.5717** | 2.6674** |
| 85+ | 5.3353** | 5.6330** |
| Smoking | ||
| Never (reference group) | ||
| Current | 1.4393** | |
| Former | 1.1363** | |
Notes: Other controls included in all models: sex, proxy, post-1996, proxy*post-1996, don't know if proxy, don't know if proxy*post-1996.
∼“Trend” is a linear term that takes the value 0 in the base year and increments by 1 for each subsequent calendar year.
**and *indicate statistical significance of the effect within a model of a given variable on the odds of having disability at the .01 and .05 levels, respectively.
N = 69,063; Years of data: 1983, 1985, 1987, 1990–1994, 1997–2005.