Variables

Mean

SD

Test statistics

t-test

p-value

F

p

PSS-other

Gender

Male

21.3

5.3

−2.66

0.008

Female

23.1

5.1

Life satisfaction

Smoking status

Not Smoking

20.5

6.5

−2.07

0.039

Smoking

22.9

6.1

PSS-other

Not Smoking

21.7

6.1

−3.21

0.001

Smoking

23.5

4.7

Depression

Working status

not working

19.3

11.0

6.13

0.001

Full time work

13.1

7.7

Part-time work

14.3

5.3

Retired

15.4

6.9

PSS-Fr

Not working

16.8

7.2

2.85

0.038

Full time work

19.3

5.3

Part-time work

19.4

3.8

Retired

18.8

3.9