Table 6. Environmental risk factors for AAA.
| Risk factor | OR | 95% CI | |
|---|---|---|---|
| AAA development | Male sex | ||
| Advanced age | |||
| Smoking | |||
| Former smoker vs. never smoker 253 | 2.3 | 1.9–2.8 | |
| 20 cigarettes/d vs. never smoker 37 | 13.72 | 6.12–30.78 | |
| Family history 69 | 2.2 | 1.6–3.2 | |
| Hypertension 40 | 1.25 | 1.21–1.28 | |
| Diabetes (protective role) 7 | 0.68 | 0.60–0.77 | |
| Obesity 40 | 1.20 | 1.17–1.22 | |
| AAA expansion | Smoking | ||
| AAA diameter | |||
| Cardiac transplant 254 | |||
| AAA rupture | Smoking 33 | 2.2 | 1.33–3.06 |
| Female sex | |||
| AAA diameter | |||
| Hypertension 164 | 1.04 | 1.02–1.07 | |
| Family history |
Abbreviations: AAA, abdominal aortic aneurysm; CI, confidence interval; OR, odds ratio.