Table 2

Predictors of smoking relapse at waves 2 and 3

	N	Proportion relapse from waves 1 to 2 (95% CI)	N	Proportion relapse from waves 2 to 3 (95% CI)
Age
18–44 years	272	0.27 (0.21 to 0.35)	161	0.29 (0.20 to 0.40)
> 44 years	208	0.22 (0.15 to 0.29)	122	0.23 (0.16 to 0.42)
Gender
Male	202	0.25 (0.18 to 0.33)	132	0.27 (0.18 to 0.37)
Female	278	0.26 (0.20 to 0.33)	153	0.28 (0.18 to 0.41)
Education level
High school or less	186	0.24 (0.17 to 0.34)	102	0.33 (0.22 to 0.46)
College or higher	285	0.26 (0.20 to 0.33)	181	0.24 (0.15 to 0.34)
Race
Non-Caucasian	53	0.24 (0.12 to 0.42)	30	0.27 (0.12 to 0.49)
Caucasian	424	0.25 (0.20 to 0.31)	252	0.28 (0.20 to 0.37)
Length of abstinence
<6 Months	215	0.35^* (0.26 to 0.45)	92	0.37 (0.25 to 0.50)
≥6 Months	265	0.17 (0.12 to 0.23)	142	0.23 (0.13 to 0.36)
Dependence
Light	282	0.22 (0.17 to 0.29)	161	0.26 (0.17 to 0.38)
Heavy	197	0.30 (0.22 to 0.39)	87	0.27 (0.17 to 0.40)
NRT (>6 weeks)
None	424	0.26 (0.20 to 0.31)	188	0.22 (0.15 to 0.32)
NRT only	27	0.19 (0.07 to 0.42)	31	0.38 (0.20 to 0.59)
NRT with professional help	25	0.29 (0.14 to 0.52)	28	0.51 (0.23 to 0.79)
NRT (any)
None	348	0.24 (0.18 to 0.30)	188	0.22 (0.15 to 0.32)
NRT only	81	0.34 (0.20 to 0.50)	40	0.52^* (0.29 to 0.73)
NRT with professional help	51	0.25 (0.13 to 0.43)	20	0.30 (0.13 to 0.36)