Table 2 Effects of preventive service to avoid deterioration to care level 1–5 from support level 1–2 as certification of LTCI system in Japan

Preventive service

Use

0.96

0.77

–

1.19

P > 0.05

No use

1.00

Age

< 85

1.00

> = 85

1.26

1.01

–

1.56

P > 0.05

Sex

Male

1.00

Female

0.76

0.57

–

1.03

P > 0.05

Certified level

Support level 1

1.00

Support level 2

1.47

1.17

–

1.84

P > 0.05

Use of inpatient medical service

Yes

1.64

0.56

–

4.85

P > 0.05

No

1.00

Use of outpatient medical service

Yes

0.68

0.23

–

2.01

P > 0.05

No

1.00

Disabled status

Dependent

1.12

0.90

–

1.40

P > 0.05

Independent

1.00

Demented status

Dependent

2.46

1.95

–

3.11

P > 0.05

Independent

1.00

Household income

Low

0.88

0.65

–

1.17

P > 0.05

High and Middle

1.00

Charlson Comorbidity Index scores

=0

1.00

> = 1

0.85

0.65

–

1.13

P > 0.05

> = 3

0.99

0.72

–

1.36

P > 0.05

> = 5

0.92

0.61

–

1.38

P > 0.05