Table 1.

Associations Between Knowledge of Radon and Demographic Characteristics of North Dakota Family Physicians

	“Radon Is Radioactive”			“1 in 15 Homes Have High Radon”			“Radon a Leading Cause Lung Cancer in Nonsmokers”
	N	%	P	N	%	p	N	%	p
Age
21 to 30	10	55.56	0.178	16	88.89	0.3626	12	66.67	0.004
31 to 40	29	63.04		37	80.43		21	45.65
41 to 60	58	69.05		65	77.38		56	67.47
60 or older	28	82.35		31	91.18		29	85.29
Gender
Female	46	64.79	0.430	58	81.69	0.951	42	59.15	0.195
Male	79	71.17		91	81.98		76	69.09
Resident
Yes	31	83.78	0.051	22	59.46	<0.001	24	64.86	0.784
No	94	64.83		127	87.59		94	65.28
Years practice
<3	33	76.74		27	62.79	<0.001	25	58.14	0.154
3 or more	92	66.19		122	87.77		93	67.39