Table 4. Scores for intermediate outcomes by study group at baseline, 2 weeks, and 6 months.

Mediators	Baseline (n=1,224)		2 weeks(n=776)a		6 months(n=1,026)
	n	%	n	%	n	%
Stage of changeb
Survey onlyc
PC	33	8.0	7	4.5	14	6.1*
C	232	56.3	48	30.8	120	52.0
P	147	35.7	101	64.7	97	42.0
Web sitec
PC	30	7.5	4	1.3	11	5.0
C	220	55.3	83	27.3	90	41.1
P	148	37.2	217	71.4	118	53.9
Tailoredc
PC	32	7.8	7	2.3	14	6.1*
C	217	52.9	78	25.2	80	34.9
P	161	39.3	225	72.6	135	59.0
	M	SD	M	SD	M	SD
Knowledge
Survey onlyc	2.47	0.96	2.61*	0.97	2.68*	: 0.86
Web sitec	2.42	0.96	2.68	0.88	2.70	0.90
Tailoredc	2.49	0.91	3.00	0.82	2.88	0.87
Self-efficacy
Survey onlyd	3.50	0.50	3.58*	0.46	3.56*	0.46
Web site	3.53	0.50	3.59	0.46	3.57	0.46
Tailoredc	3.53	0.49	3.68	0.40	3.64	0.41
Pros
Survey only	3.44	0.43	3.36	0.42	3.37*	0.46
Web site	3.47	0.41	3.42	0.45	3.46	0.42
Tailored	3.48	0.44	3.42	0.47	3.41	0.43
Cons
Survey only	1.74†	0.60	1.58	0.51	1.67†	0.57
Web site	1.88	0.64	1.63	0.57	1.65	0.58
Tailored	1.69	0.54	1.56	0.53	1.58	0.51
Social influence
Survey only	2.85	0.67	2.68	0.69	2.81	0.68
Web site	2.82	0.71	2.78	0.72	2.82	0.71
Tailored	2.88	0.68	2.80	0.70	2.77	0.68
Single-item measures
Cancer worry (range 1–5)
Survey only	1.93†	0.92	1.96	0.80	1.96	0.82
Web site	1.92	0.92	1.96	0.96	1.98	0.99
Tailoredd	1.80	0.91	1.99	0.93	1.90	0.83
Comparative risk (range 1–3)
Survey only	1.90†	0.68	1.88	0.65	1.88	0.64
Web sited	1.95	0.69	2.00	0.68	1.93	0.78
Tailored	1.85	0.65	1.92	0.66	1.90	0.61
Absolute risk (range 1–5)
Survey only	2.37	0.95	2.31	0.93	2.32	0.91
Web site	2.43	1.00	2.40	0.98	2.35	0.94
Tailoredd	2.29	0.93	2.35	0.09	2.27	0.89

For stage of change, a categorical variable, χ² was used to test for statistical significance within and between groups. All other variables were measured continuously and were tested using ANOVA for between-group comparisons. If the overall between-group difference was statistically significant at p<0.10, we tested pairwise differences using ANOVA. Onesided binomial sign tests were used to test within-group differences for an improved mean at the 95% confidence level. For within-group comparisons, we compared baseline to 2 weeks and baseline to 6 months

^aFor the 2-week comparisons, the sample size was reduced by half because participants were randomized to receive the 2-week follow-up survey or not

^bFor the 6-month comparisons of stage of change, we omitted participants who had been screened during the study (n=344) in order to assess stage movement for those not screened. PC pre-contemplation, C contemplation, P preparation for action

^cWithin-group difference from baseline to 2 weeks and baseline to 6 months are statistically significant at p<0.05

^dWithin-group differences from baseline to 2 weeks are statistically significant at p<0.05

^*p<0.05 (overall between-group differences)

^†p<0.10 (overall between-group differences)