Table 2.

Univariate and multivariate analysis by logistic regression comparing worsened with resistant group.

		Worsened (K6 < 13 ⇒ K6 ≥ 13) (Reference: Resistant; K6 < 13 ⇒ K6 < 13)
		Univariate Analysis				Multivariate Analysis
		Men		Women		Men		Women
		OR [95% CI]	p Value	OR [95% CI]	p Value	OR [95% CI]	p Value	OR [95% CI]	p Value
Age groups	15–39 years	Reference		Reference		Reference		Reference
	40–64 years	0.80 (0.65–0.97)	0.008	1.09 (0.92–1.28)	0.122	0.70 (0.56–0.89)	0.003	0.84 (0.69–1.02)	0.072
	≥65 years	0.96 (0.78–1.17)	0.365	1.44 (1.22–1.70)	<0.001	0.75 (0.59–0.97)	0.025	0.82 (0.67–1.02)	0.068
Subjective health status	Usual, good, or very good	Reference		Reference		Reference		Reference
	Bad or very bad	3.39 (2.88–3.99)	<0.001	3.69 (3.22–4.23)	<0.001	2.27 (1.87–2.76)	<0.001	2.38 (2.01–2.82)	<0.001
Past history	Cardiovascular disease (heart disease and stroke)	1.29 (1.07–1.56)	0.009	2.12 (1.79–2.52)	<0.001	1.07 (0.85–1.35)	0.551	1.45 (1.16–1.81)	0.001
	Psychiatric disease	3.19 (2.40–4.23)	<0.001	3.73 (3.02–4.61)	<0.001	1.92 (1.38–2.67)	<0.001	2.58 (2.02–3.30)	<0.001
Disaster experiences	Tsunami	1.27 (1.08–1.49)	0.004	1.41 (1.21–1.64)	<0.001	1.00 (0.82–1.22)	1	0.95 (0.78–1.15)	0.576
	heard the sound of nuclear plant explosion	1.59 (1.36–1.85)	<0.001	1.79 (1.57–2.03)	<0.001	1.13 (0.94–1.36)	0.194	1.26 (1.08–1.46)	0.004
	bereavement	1.37 (1.15–1.63)	<0.001	1.40 (1.21–1.62)	<0.001	1.05 (0.85–1.28)	0.662	1.01 (0.85–1.20)	0.936
	house damage
	No damage	Reference		Reference		Reference		Reference
	Partial collapse	1.33 (1.10–1.60)	0.632	1.60 (1.36–1.87)	0.665	1.11 (0.90–1.37)	0.312	1.26 (1.05–1.50)	0.012
	Half collapse and worse	1.62 (1.21–2.17)	0.01	2.40 (1.91–3.01)	<0.001	0.97 (0.69–1.37)	0.86	1.50 (1.14–1.97)	0.004
Living place in 2011	In Fukushima prefecture	Reference		Reference		Reference		Reference
	Out of Fukushima prefecture	1.46 (1.22–1.74)	<0.001	1.13 (0.980–1.31)	0.092	1.22 (0.99–1.50)	0.064	0.96 (0.80–1.14)	0.616
Living arrangement in 2011	Own home	Reference		Reference		Reference		Reference
	Other than own home	1.88 (1.58–2.23)	<0.001	1.60 (1.39–1.85)	<0.001	1.44 (1.18–1.77)	<0.001	1.24 (1.04–1.48)	0.014
Posttraumatic stress symptoms	PCL-S score ≥ 44 in 2011	5.84 (4.97–6.86)	<0.001	5.26 (4.61–6.02)	<0.001	4.04 (3.32–4.90)	<0.001	3.35 (2.85–3.95)	<0.001
Radiation Risk Perception in 2011	Immediate effect
	Very unlikely	Reference		Reference		Reference		Reference
	Unlikely	1.46 (1.21–1.76)	0.013	1.58 (1.36–1.84)	0.042	0.98 (0.78–1.22)	0.839	1.32 (1.10–1.58)	0.003
	Likely	2.33 (1.82–2.99)	0.003	2.20 (1.79–2.70)	0.01	1.14 (0.84–1.55)	0.41	1.34 (1.03–1.74)	0.028
	Very likely	2.82 (2.18–3.64)	<0.001	2.97 (2.36–3.73)	<0.001	1.02 (0.72–1.44)	0.921	1.50 (1.10–2.03)	0.01
	Delayed effect
	Very unlikely	Reference		Reference		Reference		Reference
	Unlikely	1.35 (1.08–1.69)	<0.001	1.12 (0.92–1.37)	<0.001	1.08 (0.79–1.46)	0.643	1.00 (0.76–1.33)	0.978
	Likely	2.04 (1.62–2.57)	0.005	1.82 (1.50–2.22)	<0.001	1.33 (0.94–1.88)	0.105	1.04 (0.76–1.41)	0.817
	Very likely	2.96 (2.38–3.67)	<0.001	2.31 (1.90–2.80)	<0.001	1.32 (0.90–1.92)	0.155	0.95 (0.68–1.32)	0.755
	Genetic effect
	Very unlikely	Reference		Reference		Reference		Reference
	Unlikely	1.23 (0.95–1.61)	0.001	0.88 (0.69–1.12)	<0.001	1.11 (0.78–1.56)	0.568	0.73 (0.53–1.01)	0.055
	Likely	1.70 (1.32–2.20)	0.18	1.51 (1.21–1.89)	0.019	1.08 (0.75–1.57)	0.681	1.04 (0.75–1.44)	0.828
	Very likely	2.78 (2.19–3.52)	<0.001	2.33 (1.88–2.89)	<0.001	1.31 (0.89–1.92)	0.169	1.25 (0.89–1.76)	0.202

OR, odds ratio. OR in multivariate analyses were adjusted for all other variables in table.