Table 3.

Factors associated with non-response to the self-administered questionnaire in the multivariate analysis

Variable		Total
		OR	95% CI
Age		1.00	0.99-1.02
Gender	(Ref. Men)	0.68	0.40-1.14
Living place	(Ref. Inside Fukushima prefecture)	1.69	0.99-2.86
Family structure	(Ref. Single and Spouses)	1.63	0.97-2.73
Educational attainment	(Ref. Elementary or junior high school)	0.58	0.30-1.10
Employment status	(Ref. Unemployed)	1.99	1.12-3.51	*
Financial circumstances	(Ref. Good)	1.26	0.72-2.23
LSNS-6 <12	(Ref. ≥12)	0.80	0.47-1.35
K6 ≥13	(Ref. <13)	2.17	1.01-4.66	*

Multivariate logistic regression was used to calculate ORs and 95% confidence intervals (95% CI) after controlling simultaneously for independent variables. N=418

*p<0.05

Note: K6 score ≥13 was defined as psychological distress.