Table 1. Bivariate associations between potential demographic/disaster-related factors and psychological distress (K6).

	Unit/contrast	B	s.e.	β	P
Demographic and risk factors
Age	Years	0.04	0.00	0.14	<0.0001
Gender	Female	1.21	0.07	0.12	<0.0001
Unemployed	Yes	1.67	0.08	0.16	<0.0001
Previous serious disease	Yes	2.14	0.09	0.17	<0.0001
Disaster-related factors
Family loss in disaster	Yes	0.65	0.11	0.04	<0.0001
House collapse	Yes	0.13	0.09	0.01	0.16
Currently receiving treatment	Yes	2.09	0.07	0.20	<0.0001
Diabetes	Yes	1.47	0.15	0.07	<0.0001
High blood pressure	Yes	1.08	0.09	0.08	<0.0001
Cancer	Yes	2.75	0.29	0.07	<0.0001
Cardiac disease	Yes	2.23	0.20	0.08	<0.0001
Cerebrovascular disease	Yes	2.25	0.31	0.05	<0.0001
Respiratory disorder	Yes	2.20	0.23	0.07	<0.0001
Dialysis	Yes	1.64	0.82	0.01	<0.05
Change in physical activities	Increase	−2.04	0.06	−0.23	<0.0001
House visitor	Yes	−1.68	0.12	−0.11	<0.0001
Visitor is relative	Yes	−1.13	0.09	−0.09	<0.0001
Visitor is child	Yes	0.36	0.11	0.03	<0.001
Visitor is sibling	Yes	−0.26	0.09	−0.02	<0.01
Visitor is daughter-in-law	Yes	−0.21	0.23	0.01	0.36
Emotional support from
Spouse	Yes	−1.03	0.09	−0.09	<0.0001
Father	Yes	−1.96	0.22	−0.07	<0.0001
Mother	Yes	−1.17	0.16	−0.05	<0.0001
Child	Yes	0.70	0.14	0.04	<0.0001
Sibling	Yes	0.10	0.15	0.01	0.50
Friend	Yes	−1.13	0.09	−0.09	<0.0001