Table 1.

Baseline characteristics

	Randomized			Group assignment			Retained at 12 months
Characteristic	No	Yes	p	Skin*	Diet	p	Yes	No	p
n	770	1356		688	668		901	455
Proportion performing TSSE at baseline	19%	17%	0.3	18%	17%	0.7	17%	18%	0.7
Number of areas examined	2.7	2.5	0.2	2.6	2.5	0.4	2.6	2.4	0.4
Procedure in 6 months before baseline		6%		5%	6%	0.6	6%	6%	0.9
Age in years (mean)	50.5	53.2	<.0001	54.0	52.5	0.056	53.9	52.0	0.04
Age in years (SD)	15.5	14.8		14.7	15.0		14.3	15.8
Proportion men	40.7%	41.7%	0.7	44.0%	39.2%	0.08	41.6%	41.8%	1.0
Education			0.02			0.4			0.014
Less than high school	9%	6%		7%	5%		6%	6%
High school graduate	26%	28%		27%	28%		28%	27%
Some after high school	28%	29%		29%	29%		26%	33%
College graduate	37%	38%		37%	38%		40%	33%
% employed	66%	61%	0.02	60%	62%	0.5	61%	61%	0.8
Advice from MD office to SSE	27%	31%	0.03	32%	30%	0.4	34%	26%	0.003
Wall mirror	79%	81%	0.3	80%	82%	0.4	81%	81%	1.0
Need glasses or contacts to examine	56%	60%	0.12	26%	27%	0.8	62%	56%	0.08
Someone helps or could help with TSSE	80%	83%	0.12	83%	83%	0.8	84%	80%	0.08
Estimated skin cancer risk (BRAT)			0.12			0.13			0.4
High	21%	24%		25%	24%		24%	24%
Moderate	36%	36%		33%	38%		37%	34%
Low	43%	40%		42%	38%		39%	42%
Perceived skin cancer risk	3.36	3.26	0.05	3.28	3.25	0.6	3.23	3.32	0.15
Confidence (on 1 to 10 scale)
in performing TSSE	8.0	7.9	0.6	8.0	7.9	0.6	8.0	7.9	0.4
in detecting a serious problem	6.8	6.8	0.7	6.8	6.9	0.5	6.9	6.7	0.4
Attitude towards TSSE (on 1 to 4 scale)
Positive personal gain	3.3	3.3	0.2	3.4	3.3	0.5	3.4	3.3	0.6
Bodily or social unease	1.7	1.7	0.8	1.7	1.7	0.6	1.7	1.7	0.3

SD, standard deviation; TSSE, thorough skin self-examination