Number (percent) or mean (standard deviation)

Sex (female)

9

(81.8)

Age, years

38.2

11.5

Height, cm

164.6

10.2

Weight, kg

55.4

10.3

Occupation

Medical worker

3

(27.3)

Office worker

7

(63.6)

Researcher

1

(9.1)

Education

High school

2

(18.2)

University

5

(45.5)

Graduate school

4

(36.4)

Marital status (married)

8

(72.7)

Smoking status (current smoker)

2

(18.2)

Drinking status (current alcohol drinker)

5

(45.5)