Table 4

Multiple logistic regression analysis of factors influencing psychological distress and PTSD after the disaster: mental health survey to medical health survey group (n=8763)

		Model 1			Model 2			Model 3			Model 4
		OR	95% CI	P value	OR	95% CI	P value	OR	95% CI	P value	OR	95% CI	P value
Psychological distress (K6 ≥13)
Age	Per 1 SD (9.3)	1.07	1.00 to −1.15	0.046	1.11	1.03 to −1.19	0.004	1.11	1.03 to −1.19	0.004	1.14	1.06 to −1.22	<0.001
Men	Women	0.62	0.52 to −0.74	<0.001	0.61	0.51 to −0.74	<0.001	0.71	0.59 to −0.85	<0.001	0.70	0.58 to −0.84	<0.001
Diabetes mellitus
A1c <7.0%	No diabetes mellitus	1.01	0.79 to −1.30	0.917	1.01	0.79 to −1.29	0.958	1.05	0.82 to −1.35	0.704	1.04	0.80 to −1.34	0.782
A1c ≥7.0%	No diabetes mellitus	1.17	0.85 to −1.60	0.336	1.16	0.85 to −1.60	0.345	1.16	0.84 to −1.60	0.362	1.16	0.84 to −1.60	0.365
Overweight (BMI ≥25)	No overweight	0.99	0.86 to −1.13	0.854	0.97	0.85 to −1.11	0.681	0.98	0.86 to −1.13	0.797	0.97	0.84 to −1.11	0.620
CKD	No CKD	1.06	0.88 to −1.28	0.554	1.06	0.88 to −1.29	0.544	1.05	0.86 to −1.27	0.656	1.04	0.86 to −1.27	0.664
Smoker
Ex-smoker	Non-smoker	1.08	0.89 to −1.32	0.424	1.07	0.88 to −1.30	0.498	1.08	0.88 to −1.31	0.475	1.06	0.87 to −1.30	0.561
Current smoker	Non-smoker	1.10	0.89 to −1.35	0.385	1.07	0.87 to −1.31	0.536	1.09	0.88 to −1.34	0.445	1.06	0.86 to −1.31	0.586
Alcohol intake
<44 g/day	Non-drinker	0.91	0.79 to −1.06	0.222	0.91	0.79 to −1.05	0.211	0.89	0.77 to −1.04	0.134	0.89	0.77 to −1.04	0.131
≥44 g/day	Non-drinker	1.14	0.90 to −1.45	0.268	1.14	0.90 to −1.45	0.290	1.13	0.88 to −1.44	0.335	1.11	0.87 to −1.42	0.384
Physical activity <4/week	Every day	1.13	0.93 to −1.37	0.210	1.11	0.92 to −1.35	0.281	0.99	0.82 to −1.21	0.934	0.97	0.80 to −1.19	0.789
Evacuation	No evacuation	1.62	1.43 to −1.84	<0.001	1.43	1.25 to −1.63	<0.001	1.50	1.31 to −1.70	<0.001	1.35	1.18 to −1.54	<0.001
Change of job	No change				1.98	1.72 to −2.29	<0.001				1.83	1.59 to −2.12	<0.001
Sleep dissatisfaction	No dissatisfaction							5.82	4.66 to −7.28	<0.001	5.59	4.47 to −6.99	<0.001
PTSD (PCL-S ≥44)
Age	Per 1 SD (9.3)	1.20	1.13 to −1.27	<0.001	1.26	1.18 to −1.33	<0.001	1.25	1.17 to −1.32	<0.001	1.30	1.22 to −1.38	<0.001
Men	Women	0.65	0.55 to −0.75	<0.001	0.63	0.54 to −0.74	<0.001	0.73	0.62 to −0.85	<0.001	0.72	0.61 to −0.84	<0.001
Diabetes mellitus
A1c <7.0%	No diabetes mellitus	1.06	0.86 to −1.30	0.599	1.05	0.85 to −1.30	0.636	1.10	0.89 to −1.36	0.375	1.09	0.88 to −1.35	0.434
A1c ≥7.0%	No diabetes mellitus	1.11	0.85 to −1.46	0.438	1.11	0.85 to −1.46	0.447	1.11	0.84 to −1.46	0.475	1.11	0.84 to −1.46	0.477
Overweight (BMI ≥25)	No overweight	1.07	0.95 to −1.20	0.247	1.05	0.94 to −1.18	0.378	1.07	0.95 to −1.20	0.259	1.05	0.93 to −1.19	0.403
CKD	No CKD	1.19	1.02 to −1.39	0.031	1.20	1.02 to −1.40	0.028	1.18	1.01 to −1.39	0.044	1.18	1.01 to −1.40	0.043
Smoker
Ex-smoker	Non-smoker	1.11	0.94 to −1.31	0.228	1.10	0.93 to −1.30	0.269	1.10	0.93 to −1.31	0.267	1.09	0.92 to −1.29	0.324
Current smoker	Non-smoker	1.13	0.95 to −1.36	0.171	1.11	0.92 to −1.32	0.274	1.13	0.94 to −1.36	0.194	1.10	0.92 to −1.33	0.297
Alcohol intake
<44 g/day	Non-drinker	0.94	0.83 to −1.06	0.314	0.94	0.82 to −1.06	0.298	0.92	0.81 to −1.05	0.204	0.92	0.81 to −1.05	0.199
≥44 g/day	Non-drinker	1.19	0.97 to −1.46	0.098	1.18	0.96 to −1.45	0.116	1.18	0.96 to −1.45	0.128	1.16	0.94 to −1.43	0.161
Physical activity <4/week	Every day	1.14	0.97 to −1.33	0.125	1.12	0.95 to −1.31	0.191	1.00	0.85 to −1.18	0.972	0.98	0.83 to −1.16	0.853
Evacuation	No evacuation	1.57	1.41 to −1.76	<0.001	1.37	1.22 to −1.53	<0.001	1.45	1.30 to −1.63	<0.001	1.29	1.15 to −1.45	<0.001
Change of job	No change				2.12	1.88 to −2.40	<0.001				1.99	1.75 to −2.25	<0.001
Sleep dissatisfaction	No dissatisfaction							4.64	3.92 to −5.50	<0.001	4.45	3.76 to −5.28	<0.001

P values are two-tailed.
Model 1: adjusted for age, sex, diabetes mellitus, overweight, CKD, smoker, alcohol intake, regular exercise, and evacuation.
Model 2: model 1 plus change of job.
Model 3: model 1 plus sleep dissatisfaction.
*Model 4: model 1 plus change of job and sleep dissatisfaction.
BMI, body mass index; CKD, chronic kidney disease; K6, Kessler-6 Scale; PCL-S, PTSD Checklist-Stressor-Specific Version; PTSD, post-traumatic stress disorder.