TABLE 2.

Knowledge and awareness of radon and sources of radon-related information by state policy type (N = 995)

		Notification policy states			Certification policy states
	Total (N = 995)	Yes (n = 542)	No (n = 454)	χ2	Yes (n = 410)	No (n = 586)	χ2a
	%	%	%	P	%	%	P
Heard of health issues related to radon	86	88	85	.19	86	87	.64
Sources of radon-related health information b
Television	30	33	27	.05	32	29	.36
Family Member, friend, neighbor, coworker	41	43	38	.12	39	43	.23
Real estate agent	69	70	66	.24	66	70	.15
Home inspector	65	64	67	.39	64	66	.58
Contractor (home repair/remodeling)	10	11	10	.68	8	11	.12
Professional radon testing company	24	27	21	.07	32	19	<.001
Other	17	15	19	.08	17	16	.89
Had house tested for radon	58	61	56	.30	59	58	.80
Who first recommended radon testing c
Sellers tested prior to purchase	10	12	8	.10	13	8	.05
Myself, family member, friend	21	20	23	.30	20	22	.47
Real estate agent	38	36	41	.23	40	37	.47
Home inspector	21	22	19	.35	13	26	<.001
Radon professional (other than home inspector)	4	5	3	.39	7	2	.002
Other	3	4	3	.56	5	2	.14

^aFor cell counts with less than five expected responses, Fisher’s exact test was calculated. Statistical significance was regarded as a two-sided P-value <.05.

^bAmong persons who reported “yes” to having heard about health issues related to radon (n = 860). Percentages do not total to 100% due to respondents ability to report multiple sources of information.

^cAmong persons who reported “yes” that their home was tested for radon (n = 580).