Variable

OB (n = 21)

non-OB (n = 30)

The amount of drinking for 1 week

1-day average smoking number

Overwork the previous month

1-day average sleeping hours

The amount of drinking for 1 week

1-day average smoking number

Overwork the previous month

1-day average sleeping hours

Stress

Workload

−0.18

−0.33

0.17

−0.24

−0.10

0.25

0.64**

−0.23

Mental workload

0.09

−0.51*

0.07

−0.19

−0.28

0.27

0.45*

0.03

Job control

0.10

0.16

0.17

−0.11

−0.31

0.03

−0.12

0.08

Problems in personal relationship

−0.12

−0.18

0.10

0.12

−0.32

−0.06

0.39*

−0.01

Support from colleagues

0.18

−0.16

0.10

−0.28

0.22

−0.10

−0.09

−0.01

Reward from work

0.29

0.29

0.17

0.05

−0.025

−0.13

0.01

0.04