Table 3.

Smoking Cessation After Hospital Discharge

Smoking Cessation*	Enhanced Usual Care Group (N=92)		Financial Incentive Group (N=90)		P Value
	n/N	Percent	n/N	Percent
Smoking cessation at 2 weeks (%)
Self-reported	27/67	40.3	35/75	46.7	0.445
Smoking cessation at 2 months (%)
Self-reported	24/65	36.9	40/68	58.8	0.012
Bioconfirmed	12/48	25.0	14/40	35.0	0.306
No saliva sample submitted†	7/24	29.2	16/40	40.0	0.382
Positive saliva sample submitted†	5/24	20.8	10/40	25.0	0.703
Smoking cessation at 6 months (%)‡
Self-reported	26/70	37.1	35/64	54.7	0.042
Bioconfirmed	5/56	8.9	9/46	19.6	0.103
No saliva sample submitted†	5/26	19.2	8/35	22.9	0.732
Positive saliva sample submitted†	16/26	61.5	18/35	51.4	0.432

^*The denominator for self-reported smoking cessation indicates the number of participants who completed follow-up at each time point. The denominator for bioconfirmation indicates the number of participants who submitted a saliva sample or provided expired CO

^†Among participants with self-reported smoking cessation

^‡P value for bioconfirmed smoking cessation at 6 months based on logistic regression model with multiple imputation for missing smoking cessation values

Note: At 6 months, 72 patients in the enhanced usual care group and 65 patients in the financial incentive group participated in the phone survey. Of these patients, 2 patients in the enhanced usual care group and 1 patient in the financial incentive group did not respond to questions about current smoking. After the 6 month phone survey, 56 patients in the enhanced usual care group and 46 patients in the financial incentive group subsequently presented for bioconfirmation.