Table 4.
Smoking Status and Years of Cessation in Relation to the Risk of Testicular Cancer
| Srivastava A et al24 | N = 464 | Pack-years | OR | 95% CI | ||
| 0 (nonsmoker) | 1 | — | ||||
| > 0 to ≤ 5 | 1.56 | 0.87–2.82 | ||||
| > 5 to ≤ 12 | 1.61 | 0.89–2.92 | ||||
| > 12 to ≤ 24 | 1.96 | 1.04–3.69 | ||||
| > 24 | 2.31 | 1.12–4.77 | ||||
| Years of Cessation | OR | 95% CI | ||||
| 0 to ≤ 2 (current smokers) | 1 | — | ||||
| > 2 to ≤ 7 | 1.95 | 0.80–4.80 | ||||
| > 7 to ≤ 13 | 1.43 | 0.60–3.42 | ||||
| > 13 to ≤ 20 | 1.33 | 0.54–3.28 | ||||
| ≤ 20 | 1.22 | 0.40–3.69 | ||||
| UK Testicular Cancer | ||||||
| Study Group25 | N = 794 | Smoking Status | OR | 95% CI | ||
| Never smoker | 1 | — | ||||
| Ever smoker | 1.18 | 0.96–1.46 | ||||
| Smoking Intensity | OR | 95% CI | X2trend 2.58 | P = .11 | ||
| Never smoker | 1 | - | ||||
| < 10 | 1.09 | 0.84–1.41 | ||||
| 10.0–19.0 | 1.28 | 0.98–1.66 | ||||
| 20–29 | 1.34 | 0.86–2.09 | ||||
| ≥ 30 | 1 | 0.56–1.76 |
CI, confidence interval; OR, odds ratio.