Table 2. Multiple regression analysis of the scores on perceptions of medical uncertainty.

Q: question; coef.: regression coefficient; ref.: reference

	Q1		Q2		Q3		Q4		Q5		Q6
	Coef.	P	Coef.	P	Coef.	P	Coef.	P	Coef.	P	Coef.	P-value
Age (years) (ref. = 40-59)
20-39	0.174	0.045	0.209	0.002	0.201	0.015	0.185	0.008	0.272	0.002	0.26	0.004
≥ 60	0.104	0.252	-0.06	0.401	-0.12	0.179	-0.08	0.252	-0.06	0.495	0.187	0.045
Sex (ref. = female)
Male	-0.33	< .001	-0.11	0.071	-0.07	0.346	0.036	0.568	0.036	0.637	0.142	0.076
Education level (ref. = university/graduate school)
Vocational school/junior college	0.043	0.631	-0	0.963	0.063	0.459	-0.05	0.486	0.002	0.982	0.004	0.963
Junior high school/high school	0.337	< .001	0.135	0.064	0.008	0.932	0.079	0.172	-0.09	0.343	0.21	0.029
Marital status (ref. = married)
Unmarried	-0.06	0.585	0.034	0.698	0.093	0.392	0.078	0.387	0.042	0.701	-0.02	0.898
Having children (ref. = having children)
Without children	-0.16	0.131	-0.1	0.222	-0.26	0.01	-0.11	0.172	-0.3	0.003	0.058	0.590
Population size in the living area (ref. =  capital)
City	-0.03	0.765	0.021	0.774	0.093	0.298	0.008	0.921	0.123	0.186	0.008	0.934
Middle city	0.018	0.866	0.038	0.648	0.158	0.114	0.033	0.699	0.182	0.081	-0.03	0.756
Town	0.137	0.163	0.055	0.473	0.051	0.586	0.048	0.548	0.057	0.559	-0.04	0.726
Small town	0.573	< .001	0.775	< .001	0.215	0.162	0.952	< .001	0.52	0.001	0.057	0.001
Medical care user (ref. = no)
Yes	-0.19	0.014	-0.24	< .001	-0.13	0.073	-0.29	< .001	-0.2	0.01	-0.31	< .001
Occupations (ref. = nurses)
Non-medical professionals	1.227	< .001	0.662	< .001	0.314	< .001	0.417	< .001	0.65	< .001	0.393	< .001