Table 4.

Time-dependent continuous abstinence rate

	Smoking cessation rate	95% CI
End of outpatient carea)	90/193 (46.6%)	39.6–53.7%
9 months later	84/193 (43.5%)	36.4–50.8%
1 year later	71/189 (37.6%)	30.6–44.9%
2 years later	51/144 (35.4%)	27.6–43.8%
3 years later	34/109 (31.2%)	22.7–40.8%
4 years later	23/69 (33.3%)	22.4–45.7%
5 years later	9/25 (36.0%)	18.0–57.5%

^a) The end of outpatient care is between 2 weeks and 3 months.