Table 2 Multivariate Cox regression analysis for the impact of disaster on cognitive decline

1.12

1.00^a–1.26

1.20

1.06–1.36

0.89

0.67–1.17

1.08

0.97–1.21

1.13

1.00^b–1.28

0.91

0.69–1.21

Age (ref = < 64)

65–74

1.65

1.43–1.91

1.69

1.44–1.99

1.36

0.98–1.89

1.63

1.41–1.88

1.68

1.44–1.99

1.22

0.88–1.70

75–84

2.16

1.88–2.48

2.29

1.96–2.67

1.48

1.08–2.04

2.09

1.82–2.41

2.26

1.93–2.64

1.28

0.93–1.75

85 >

2.54

2.20–2.91

2.83

2.42–3.30

1.49

1.09–2.05

2.45

2.13–2.81

2.78

2.38–3.25

1.30

0.94–1.78

0.93

0.91–0.96

0.93

0.90–0.97

0.96

0.91–1.02

0.96

0.93–0.99

0.96

0.93–0.99

0.99

0.94–1.05

Level of dementia symptomatology assessment before disaster (ref = II b)

Independent

1.38

1.32–1.44

1.35

1.29–1.42

1.96

1.77–2.17

1.45

1.39–1.51

1.46

1.39–1.53

1.74

1.57–1.92

I

1.19

1.14–1.23

1.14

1.09–1.19

1.50

1.39–1.62

1.20

1.15–1.25

1.18

1.13–1.24

1.35

1.25–1.46

II a

1.33

1.28–1.39

1.33

1.26–1.39

1.35

1.26–1.46

1.36

1.31–1.42

1.39

1.32–1.46

1.31

1.21–1.41

III a

0.63

0.60–0.66

0.74

0.70–0.78

0.55

0.51–0.58

0.65

0.63–0.68

0.73

0.69–0.78

0.58

0.55–0.62

III b

0.54

0.51–0.58

0.66

0.60–0.73

0.48

0.43–0.52

0.56

0.52–0.60

0.64

0.58–0.70

0.51

0.46–0.55

IV

0.12

0.10–0.13

0.18

0.16–0.21

0.09

0.08–0.10

0.13

0.11–0.14

0.18

0.15–0.21

0.10

0.09–0.12

1.31

1.23–1.40

1.34

1.24–1.44

1.19

1.05–1.35

1.20

1.13–1.28

1.18

1.09–1.26

1.24

1.10–1.41

0.98

0.97–0.98

0.97

0.96–0.98

1.00

0.99–1.01

1.02

1.01–1.03

1.02

1.02–1.03

1.02

1.00–1.03

1.45

1.41–1.50

1.59

1.54–1.64