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Table 1 Subject characteristics (n = 939)

From: Long working hours and pregnancy complications: women physicians survey in Japan

 

N

%

Age at survey, years

  
 

≤39

314

33

 

40-48

306

33

 

49≤

319

34

Maternal age, years

  
 

<28

234

25

 

28-29

181

19

 

30-32

259

28

 

33≤

265

28

Specialty

  

Internal medicine

283

30

 

Dermatology

111

12

 

Pediatrics

104

11

 

Opthalmology

102

11

 

OBGY

65

7

 

Psychiatry

51

5

 

Ear nose Throat

50

5

 

Anesthesiology

35

4

 

Has not decided yet

26

3

 

Othersa

110

12

Any pregnancy complications

  
 

Overallb

394

42

  

Threatened abortion

129

14

  

Preterm birth

107

11

  

Abnormal labor and delivery

72

8

  

Spontaneous miscarriage

26

3

  

Gestational hypertension

26

3

  

Othersc

98

10

 

No complication

541

58

 

Do not remember

4

0

Current household income

  
 

Highest quintile

142

18

 

Second highest quintile

417

52

 

Middle

137

17

 

Second lowest quintile

71

9

 

Lowest quintile

30

4

Weekly working hours during the first trimester, mean (SD)

54 (22) hrs

  1. SD (standard deviation); The numbers in each category may not add up to the total if the data contain missing values.
  2. aOthers include Rehabilitation, Psychosomatic medicine, Palliative Care, Neurosurgery, Emergency medicine, Urology, Cosmetic surgery, Cardiovascular surgery, Surgery, Neurology, Orthopedic surgery, Family medicine, Plastic surgery, Radiology, Basic medicine.
  3. bPregnancy complications were not mutually exclusive here.
  4. cOthers included gynecological underlying illnesses such as uterine myoma and endometriosis, severe nausea, and other complications with internal organs like diabetes and tuberculosis.