Table 4 Short-term and long-term quit ratios by age in 1994-2010
Study year | Short – term quit ratio | Long – term quit ratio | ||||||
|---|---|---|---|---|---|---|---|---|
20-44 | 45-64 | 20-44 | 45-64 | |||||
% | 95% CI | % | 95% CI | % | 95% CI | % | 95% CI | |
1994 | 6.4 | 3.7-9.2 | 3.3 | 0.1-6.5 | 8.3 | 5.3-11.2 | 34.1 | 27.2-40.9 |
1996 | 7.4 | 4.8-9.9 | 8.1 | 4.1-12.0 | 11.5 | 8.5-14.4 | 29.3 | 23.7-32.8 |
1998 | 7.4 | 4.9-10.0 | 6.0 | 2.1-9.8 | 12.7 | 9.7-15.8 | 20.9 | 15.1-26.8 |
2000 | 5.5 | 3.5-7.4 | 4.8 | 2.0-7.6 | 11.0 | 8.4-13.5 | 24.4 | 19.6-29.3 |
2002 | 7.7 | 4.8-10.7 | 6.5 | 3.2-9.8 | 16.1 | 12.4-19.8 | 33.0 | 27.8-38.2 |
2004 | 9.2 | 6.0-12.4 | 8.3 | 4.1-12.6 | 16.0 | 12.3-19.6 | 26.3 | 20.6-32.1 |
2006 | 13.0 | 9.3-16.6 | 5.5 | 2.1-8.8 | 15.3 | 11.8-18.9 | 30.4 | 24.8-36.0 |
2008 | 13.3 | 9.5-17.1 | 9.1 | 4.8-13.5 | 16.5 | 12.7-20.3 | 37.3 | 31.6-43.0 |
2010 | 16.2 | 12.0-20.4 | 10.5 | 6.3-14.7 | 28.3 | 24.0-32.7 | 34.2 | 28.9-39.4 |