Table 8: Results of Modeling a Hypothetical Cohort in Ontario of Males Aged 65 to 75 (N = 413,500)*.
| Results (Assumptions) (38) |
Ever-Smokers (80.1%) |
Non-Smokers (19.9%) |
|---|---|---|
| Population of males aged 65–74 in Ontario (history of smoking prevalence 80.1%, 19.9%) | 331,214 | 82,286 |
| Total number of AAAs | ||
| (AAA prevalence 6.4%, 1.8%) | 21,198 | 1,481 |
| Number of AAA-attributable deaths in no-screen group | ||
| (0.72/1000 person-years) | 1,526 | 107 |
| Number of AAA-attributable deaths in screening group | ||
| (Odds ratio, 0.57) | 2,678 | 187 |
| Number of deaths prevented | 1,151 | 80 |
| Number needed to screen to prevent 1 AAA-attributable death | 288 | 1,024 |
*
Medical Advisory Secretariat; AAA indicates abdominal aortic aneurysm.