Marital status

Married

21.78

3.77

***

Single

20.49

3.88

Child status

Have a child

21.81

3.77

***

Do not have a child

20.58

3.87

Living with persons requiring care

Yes

21.42

3.86

No

21.13

3.88

Education

Community college or vocational school

21.24

3.86

University graduate or higher

20.81

3.98

Employment status

Permanent

21.11

3.86

*

Temporary

22.14

3.85

Position

Managerial position

20.94

3.87

***

Staff nurse

23.04

3.38

Scholarship system

Used

21.27

4.09

Not used

21.09

3.68

Hospital location

Kanto district

21.68

4.08

***

Tohoku district

20.86

3.71

Number of overtime hours per month

<5

21.30

3.58

5 - 20

21.06

3.80

≥20

21.29

4.13

Number of beds at hospital

<500a

21.16

3.93

a-c*

500 - 700b

21.00

3.85

b-c**

≥700c

22.22

3.76

Number of nursing staff members at hospital

<500

21.36

3.70

500 - 700

20.84

3.91

≥700

21.40

3.92