Table 1 Distribution of the studied participants according to demographic characteristics (n = 405)

1

Age (years)

  < 40

339

83.7

  ≥ 40

66

16.3

Mean ± SD

33.73 ± 6.87

Median (min.–max.)

32.0 (21.0–70.0)

2

Gender

 Males

143

35.3

 Females

262

64.7

3

Specialty

 Physician

341

84.2

 Nurse

46

11.4

 Pharmacist

15

3.7

 Others

3

0.7

5

Work schedule^a

 Morning

291

71.9

 Evening

184

45.4

 Night

8

2.0

 Changing

120

29.6