Table 1.

Baseline demographics and smoking history of subjects in each of the three treatment groups. In instances where data are missing, the total number of subjects used in calculating values is fewer than the 165 randomized to treatment.

Demographics	0.3 mg nicotine cigarettes (n = 52)		0.05 mg nicotine cigarettes (n = 53)		Nicotine lozenges (n = 60)		P-value
Age (years)	51	39.4 ± 14.0	53	40.7 ± 13.3	59	43.1 ± 12.4	0.3312
Female	26	50.0%	23	43.4%	29	48.3%	0.6967
Non-Hispanic whites	47	90.4%	44	83.0%	49	81.7%	0.7653
Education							0.8782
Less than high school graduate	2	3.9%	2	3.8%	3	5.0%
High school graduate	12	23.1%	11	20.8%	17	28.3%
Greater than high school graduate	37	71.2%	40	75.5%	39	65.0%
Marital status							0.1052
Never married	22	42.3%	25	47.2%	22	36.7%
Currently married	22	42.3%	17	32.1%	16	26.7%
Currently not married	8	15.4%	11	20.8%	21	35.0%
Cigarettes per day	52	19.8 ± 7.8	53	21.1 ± 8.1	60	21.3 ± 9.6	0.6066
Duration of having smoked at this rate (years)	52	15.4 ± 13.0	53	14.1 ± 12.6	59	15.7 ± 14.1	0.7960
Age smoking first cigarette (years)	52	14.4 ± 2.9	53	15.5 ± 4.8	60	14.5 ± 2.9	0.2518
Age becoming a regular smoker (years)	52	16.5 ± 3.0	52	19.4 ± 7.3	58	17.7 ± 4.1	0.0195
Motivation to quit (0–10 scale)	52	9.0 ± 1.1	53	9.2 ± 1.0	59	9.2 ± 1.3	0.6928
Number of quit attempts							0.4482
1–2	13	25.0%	17	32.1%	13	21.7%
3–5	14	26.9%	14	26.4%	24	40.0%
6–10	12	23.1%	10	18.9%	13	21.7%
11+	10	19.2%	4	7.6%	9	15.0%
Spouse or significant other smokes	20	38.5%	20	37.7%	21	35.0%	0.9515