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Table 1 Characteristics of participants (N = 20,786)

From: Sleep duration and satisfaction among physicians in tertiary public hospitals in China: a large sample national survey

 

Frequency

Percentage (%)

Sex

 Male

9056

43.57

 Female

11,730

56.43

Age (year)

  < =29

3711

17.85

 30–39

10,383

49.95

 40–49

4633

22.29

  > =50

2059

9.91

Marital status

 Not married

3643

17.53

 Married

16,658

80.14

 Divorced or separated

485

2.33

Children

 None

6085

29.27

 One child

12,162

58.51

 More than one

2539

12.21

Educational levela

 Bachelor of Mecicine

5952

28.64

 Additional Master’s or doctorate degree

14,834

71.37

Department

 General medicine

4878

23.47

 General surgery

3151

15.16

 Gynecology and obstetrics

2940

14.14

 General pediatrics

1762

8.48

 Emergency medicine

696

3.35

 Internal medicine subspecialtyb

3756

18.07

 General surgery subspecialtyc

3603

17.33

Administration position

 Yes

2568

12.35

 No

18,218

87.65

Night shift per month

 0–4 times

11,812

56.83

  > 4 times

8974

43.17

Hospital type

 General

8754

42.11

 Traditional Chinese Medicine

5214

25.08

 Other special typesd

6818

32.80

Region

 East China

8028

38.62

 Middle China

5385

25.91

 West China

7373

35.47

Workload

 Very heavy/Heavy

12,794

61.55

 Moderate

6611

31.80

 Very mild/Mild

1381

6.64

  1. aIn China, medical school graduates are awarded with a bachelor degree of medicine (similar to European and Russian system). Some obtained an master’s or doctorate degree in addition to their medical degree
  2. bIncluding Traditional Chinese Medicine department, rehabilitation department, geriatrics department, etc.
  3. cIncluding reproductive department, plastic surgery department, ophthalmology department, etc.
  4. dMainly Maternal and Child Health Hospitals