Table II.
Age-Standardised Incidence Rate Ratios (RR) of Lung Adenocarcinoma: Squamous cell carcinoma (AC: SCC) in ever (former and current combined) and never-smokers by gender distribution.
| Ever-Smokers | Never-Smokers | |||
|---|---|---|---|---|
| Male | Female | Male | Female | |
| Year | RR (95% CI) | RR (95% CI) | RR (95% CI) | RR (95%CI) |
| 1994 | 0.3 (0.2, 0.4) | 0.4 (0.3, 0.5) | 1.0 (0.4, 2.0) | 1.2 (0.3, 3.2) |
| 1995 | 0.3 (0.2, 0.3) | 0.5 (0.3, 0.6) | 0.8 (0.2, 2.3) | 1.3 (0.2, 4.8) |
| 1996 | 0.4 (0.3, 0.5) | 0.5 (0.3, 0.6) | 0.4 (0.1, 1.8) | 1.9 (0.2, 6.6) |
| 1997 | 0.3 (0.2, 0.4) | 0.5 (0.4, 0.7) | 0.3 (0.02, 1.8) | 0.9 (0.1, 3.8) |
| 1998 | 0.4 (0.3, 0.5) | 0.7 (0.6, 0.9) | 0.5 (0.08, 1.5) | 4.4 (0.9, NC*) |
| 1999 | 0.4 (0.3, 0.5) | 0.8 (0.6, 1.0) | 0.6 (0.90, 1.6) | 1.8 (0.2, 7.2) |
| 2000 | 0.4 (0.3, 0.5) | 0.6 (0.5, 0.7) | 1.0 (0.2, 2.3) | 2.0 (0.4, 5.5) |
*
NC: Could not be calculated because of extreme values