From: Contrasting snus and NRT as methods to quit smoking. an observational study
 |  | Used no aid | Other | NRT | Snus | Total |
---|---|---|---|---|---|---|
Men (N = 691) | 1945-1977 | 95.7 (92.34-99.08) | 0 | 0 | 4.3 (0.94-7.66) | 100.0 (140) |
 | 1978-87 | 90.8 (85.37-96.23) | 0 | 0 | 9.2 (3.77-14.63) | 100.0 (109) |
 | 1988-97 | 76.0 (69.97-82.93) | 0,7 (-0.65-2.05) | 13.7 (8.12-19.28) | 9.6 (4.82-14.34) | 100.0 (146) |
 | 1998-2007 | 61.9 (56.37-67.43) | 6.4 (3.61-9.19) | 8.1 (4.99-11.21) | 23.6 (18.76-28.44) | 100.0 (296) |
Women (N = 523) | 1945-1977 | 100 | 0 | 0 | 0 | 100.0 (66) |
 | 1978-87 | 98.7 | 0 | 0 | 1.3 (-1.25-3.85) | 100.0 (76) |
 | 1988-97 | 87.9 (82.50-93.30) | 0.7 (-0.8-2.08) | 10.7 (5.58-15.82) | 0.7 (-0.68-2.08) | 100.0 (140) |
 | 1998-2007 | 81.2 (76.27-86.13) | 3.4 (1.11-5.69) | 12.9 (8.67-17.13) | 2.5 (0.53-4.47) | 100.0 (241) |