Table 2.

Two-Part Linear Mixed Effects Model of the Relationship Between Cigarettes Per Day and Time, Before and After Provision of Cigalike E-cigarettes

	Estimate	95% CI	p
Intercept	6.85	6.15 to 7.55	<.0001
Post-e-cigarette immediate change	−1.82	−2.32 to −1.32	<.0001
Pre-e-cigarette change over time	−0.04	−0.18 to 0.10	.555
Post-e-cigarette change over time	−0.11	−0.17 to −0.05	<.0001
Intercept variance	7.51	5.40 to 10.44	—

CI = confidence interval.