Table III.
Patients’ characteristics with regard to tobacco smoking
| Parameter | Surgical treatment (n = 59) | Endovascular angioplasty (n = 60) | P-value |
|---|---|---|---|
| Number of cigarettes smoked per day: | |||
| Mean ± SD | 18.8 ±18.7 | 19.9 ±17.8 |
Z = –0.90 p = 0.3677 |
| Range | 0.0–102.0 | 0.0–103.0 | |
| Median | 20.0 | 20.0 | |
| 95% CI | 14.0; 23.7 | 15.3; 24.5 | |
| Duration of smoking [years]: | |||
| Mean ± SD | 28.7 ±14.8 | 30.5 ±15.4 |
Z = –0.74 p = 0.4584 |
| Range | 0.0–50.0 | 0.0–60.0 | |
| Median | 30.0 | 33.0 | |
| 95% CI | 24.8; 32.6 | 26.5; 34.4 | |
| Current tobacco smokers | 20 (33.9%) | 35 (58.3%) | χ2 = 7.15 |
| p = 0.0075 | |||
| Ex-tobacco smokers | 30 (50.8%) | 19 (31.7%) | χ2 = 4.52 |
| p = 0.0335 | |||
| Non-smokers | 9 (15.3%) | 6 (10.0%) | χ2 = 0.75 |
| p = 0.3879 | |||