. 2008 Nov 14;10(5):e41. doi: 10.2196/jmir.999

Table 2.

Web Coach and calls completed, by characteristic (N = 11,143). Numbers cited in statistics vary due to missing data for some analyses.

	No.	%	Calls, Mean (SD)	Web Coach Log-Ins, Mean (SD)	Forum Log-Ins, Mean (SD)
Gender
Male	5170	46.4	2.1 (1.6)	1.1 (1.8)	.45 (1.9)
Female	5937	53.6	2.1 (1.6)	1.1 (2.0)	.57 (2.2)
Statistic			t_11,141 = 3.0, P= .003	t_10,954 = −2.0, P= .05	t_10,989 = −3.0, P= .003
Age Group
18-25	708	6.4	1.6 (1.4)	.83 (1.5)	.34 (1.3)
26-40	3670	32.9	1.8 (1.4)	1.0 (1.8)	.54 (2.1)
41-60	6346	57.0	2.3 (1.6)	1.1 (1.9)	.52 (2.2)
61+	419	3.8	2.8 (1.6)	1.1 (2.0)	.38 (1.9)
Statistic			F_{3, 11,139} = 146.0, P< .001	F_{3, 10,952} = 7.0, P< .001	F_{3, 10,987} = 2.4, P= .07
Nicotine Dependence
First cigarette of day within 5 min of waking	2950	35.6	2.6 (1.4)	1.2 (2.0)	.59 (2.3)
First cigarette of day > 5 min of waking	5348	64.4	2.5 (1.4)	1.2 (2.0)	.56 (2.3)
Statistic			t₈₂₉₆ = 1.8, P= .07	t₈₁₄₅ = −1.1, P= .29	t₈₁₇₁ = .55, P = .58
Cigarettes/Day
< 15	4996	53.4	1.6 (1.5)	1.0 (1.7)	.45 (1.9)
15-20	2846	30.4	2.6 (1.4)	1.2 (2.1)	.61 (2.4)
21+	1513	16.2	2.5 (1.4)	1.0 (1.9)	.50 (2.0)
Statistic			F_{2, 9352} = 505.4, P< .001	F_{2, 9293} = 10.4, P < .001	F_{2, 9224} = 5.6, P = .004
Contract Type
Health Plan	1850	16.9	2.3 (1.6)	.96 (1.8)	.45 (2.0)
Employer	9105	83.1	2.1 (1.6)	1.1 (1.9)	.52 (2.1)
Statistic			t_10,953 = 1.0, P< .001	t_10,768 = −3.1, P = .002	t_10,804 = −1.3, P = .20
Readiness to Quit
Within 30 days	10,089	91.7	2.1 (1.6)	1.1 (1.9)	.51 (2.1)
> 30 days	914	8.3	1.9 (1.6)	1.1 (1.9)	.48 (2.1)
Statistic			t_11,001 = 4.9, P < .001	t_10,816 = −.17,P= .86	t_10,849 = .46, P = .65