Table 4.

Results of Cox Regression Testing the Joint Effect of Study Condition (lapse, no lapse) and Change in Craving on Relapse

Predictor	β	SE	Hazard ratio	95% CI	p
Baseline craving	0.17	0.12	1.18	[0.94, 1.49]	0.15
Condition × change in cravinga
No lapse/decreasing craving	0.79	0.79	2.20	[0.46, 10.4]	0.32
No lapse/increasing craving	0.78	0.94	2.17	[0.35, 13.66]	0.41
Lapse/decreasing craving	1.44	0.81	4.22	[0.86, 20.74]	0.08
Lapse/stable craving	1.43	0.88	4.18	[0.74, 23.46]	0.10
Lapse/increasing craving	2.52	0.93	12.42	[2.00, 77.1]	0.01
Age (years)	0.00	0.03	1.00	[0.95, 1.05]	0.93
NDSS total scale (factor) score	0.03	0.31	1.03	[0.56, 1.87]	0.93
Number of years smoked	0.00	0.02	1.00	[0.97, 1.04]	0.97
Number cigarettes smoked per day	0.01	0.02	1.01	[0.98, 1.04]	0.66
Number of 24 hour quits: past year	0.04	0.12	1.04	[0.82, 1.33]	0.73
Number of 24 hour quits: lifetime	−0.03	0.02	0.97	[0.94, 1.01]	0.10

Note. N = 601 observations; Likelihood ratio chi-square (12 df) = 16.38, p = 0.17.

^aNo lapse, stable craving is the reference category