Table 2.

Smoking cessation outcomes among young adults in the Tobacco Status Project intervention (treatment) versus referral to Smokefree.gov (control) over 12 months (n = 500).

	3 months						6 months						12 months
	Treatment			Control			Treatment			Control			Treatment			Control
	n	% available datab	% missing = smokingb	n	% available data	% missing = smoking	n	% available data	% missing = smoking	n	% available data	% missing = smoking	n	% available data	% missing = smoking	n	% available data	% missing = smoking
Reported abstinence, verified	12	7.1	4.8	5	2.7	2.0	9	5.6	3.6	9	4.9	3.6	11	5.9	4.4	14	8.2	5.6
Reported used ENDS	2	1.2	0.8	1	0.5	0.4	1	0.6	0.4	2	1.1	0.8	0	0	–	3	1.8	1.2
Reported abstinence not verified	9	5.3	3.6	8	4.3	3.2	15	9.3	6.0	18	9.9	7.2	26	14.1	10.4	21	12.4	8.4
Reported smoking	145	86.3	57.8	172	92.5	69.1	136	84.5	54.6	152	84.0	60.6	148	80.0	60.0	132	77.6	53.0
No response	83	–	33.1	63	–	25.3	90		35.3	68	–	27.9	66		26.3	79		31.7
Totala	251	99.9	100.0	249	100.0	100.0	251	100.0	100.0	249	99.9	100.1	251	100.0	100.0	249	100.0	100.0

ENDS = electronic nicotine delivery system.

^aTotal percentage of values may not add up to 100 due to rounding

^bIn primary outcome analyses reported abstinence, verified and reported used ENDS values were pooled.