Table 4:

The Interaction between Gender and Same-Day Self-Efficacy and NRT Adherence

	Amount short-acting NRT	Adherent patch (16 hrs)	Adherent cNRT (16 hrs; 8 doses)
Fixed effects (Same-day)	b (SE)	OR (95% CI)	OR (95% CI)
Intercept	5.04 (3.38)	2.87 (0.01, 879.85)	0.04 (0.00, 4.65)
Female	−2.59* (1.20)	1.28 (0.26, 6.27)	0.19* (0.04, 0.95)
Self-efficacy (day-level)	−0.16 (0.23)	0.78 (0.51, 1.21)	0.98 (0.72, 1.34)
Female × Self-efficacy (day-level)	0.51 (0.30)	2.12* (1.14, 3.95)	2.23** (1.34, 3.72)
Self-efficacy (person-level)	0.23 (0.78)	1.36 (0.39, 4.83)	1.35 (0.40, 4.60)
Day	−0.04** (0.01)	1.01 (0.99, 1.03)	0.97** (0.95, 0.99)
Random effects (Same-day)	Est. (SE)	Est. (SE)	Est. (SE)
Intercept	15.66** (3.66)	8.06** (2.21)	6.53** (1.94)
Day	0.01** (0.00)	0.00* (0.00)	0.00** (0.00)

Note: OR = Odds ratio; CI = Confidence interval; Est. = estimate; Significant estimates are in bold.

^**p < 0.01;

^*p < 0.05.

All models adjust for FTND total scores (Fagerström test for nicotine dependence), same-day # cigarettes smoked, intervention status, race, marital status, children, and education; Having children was significantly associated with daily use of amount short-acting NRT and daily adherence to cNRT (16 hrs; 8 doses); Treatment group was significantly associated with daily use of amount short-acting NRT. Sensitivity analyses including random effects for same-day self-efficacy did not change the reported findings. However, the interaction between gender and self-efficacy (day-level) became significant in the model predicting amount short-acting NRT (b=0.88, p < 0.01).