		Five items on the health literacy scale CCHL (Communicative and Critical Health Literacy (CCHL) developed by Ishikawa et al. [19]
		Information gathering	Selection	Understanding and communication	Judgment	Planning and action	Radiation exposure literacy total scores
Age (in years)
Total	n = 76	4.14 ± 0.91	3.84 ± 1.06	3.07 ± 0.88	2.88 ± 0.92	2.25 ± 0.82	16.30 ± 3.5
30 - 39	n = 27	4.56 ± 0.58	4.30 ± 0.91	3.33 ± 0.73	3.22 ± 0.70	2.22 ± 0.64	17.63 ± 2.7
40 - 49	n = 10	4.10 ± 0.88	3.80 ± 1.03	2.80 ± 0.79	2.70 ± 1.25	2.40 ± 1.27	16.90 ± 3.0
50 - 59	n = 18	3.94 ± 1.11	3.50 ± 0.99	3.00 ± 0.91	2.89 ± 0.96	2.50 ± 0.99	16.06 ± 4.0
60 - 69	n = 15	3.67 ± 0.98	3.47 ± 1.25	2.80 ± 1.15	2.40 ± 0.83	1.93 ± 0.59	14.00 ± 3.9
70 or older	n = 6	4.17 ± 0.75	3.83 ± 0.98	3.17 ± 0.75	2.83 ± 0.98	2.17 ± 0.41	16.17 ± 2.9
p-value		0.026	0.063	0.301	0.081	0.366	-
Occupation
Total	n = 76	4.14 ± 0.91	3.84 ± 1.06	3.07 ± 0.88	2.88 ± 0.92	2.25 ± 0.82	16.30 ± 3.5
Office workers	n = 22	4.36 ± 0.58	4.05 ± 0.90	2.95 ± 0.72	3.00 ± 0.82	2.00 ± 0.69	16.36 ± 2.7
Medical workers	n = 10	4.80 ± 0.42	4.60 ± 0.70	3.80 ± 0.63	3.70 ± 0.48	2.80 ± 0.79	19.70 ± 1.8
Homemakers	n = 31	3.87 ± 1.09	3.61 ± 1.17	2.87 ± 0.99	2.58 ± 0.92	2.06 ± 0.86	15.06 ± 3.9
Others	n = 13	3.92 ± 0.86	3.46 ± 0.97	3.15 ± 0.80	2.77 ± 1.01	2.69 ± 0.86	16.53 ± 3.3
p-value		0.014	0.025	0.028	0.006	0.006	-
Marital Status
Total	n = 76	4.14 ± 0.91	3.84 ± 1.06	3.07 ± 0.88	2.88 ± 0.92	2.25 ± 0.82	16.30 ± 3.5
Yes	n = 21	4.48 ± 0.60	4.24 ± 0.89	3.24 ± 0.70	3.05 ± 0.81	2.10 ± 0.70	17.10 ± 2.8
No	n = 55	4.02 ± 0.97	3.69 ± 1.09	3.00 ± 0.94	2.82 ± 0.96	2.25 ± 0.82	16.00 ± 3.7
p-value		0.048	0.043	0.297	0.336	0.312	-
Presence of Children
Total	n = 76	4.14 ± 0.91	3.84 ± 1.06	3.07 ± 0.88	2.88 ± 0.92	2.25 ± 0.82	16.30 ± 3.5
Yes	n = 44	3.80 ± 0.95	3.50 ± 1.01	2.93 ± 0.97	2.73 ± 0.98	2.34 ± 0.94	15.41 ± 3.9
No	n = 32	4.63 ± 0.55	4.31 ± 0.82	3.25 ± 0.72	3.09 ± 0.78	2.13 ± 0.61	17.46 ± 2.5
p-value		0	0.001	0.122	0.088	0.259	-