Table 1 Demographic characteristics (N = 779)

Age (years; mean = 32.18, SD = 6.78)

 Occupation

  Midwife

188

24.1

  Obstetric nurse

591

75.9

Education level

 College degree or below

97

12.5

 Bachelor’s degree

671

86.1

 Master’s degree or above

11

1.4

Marital status

 Married

515

66.1

 Unmarried

253

32.5

 Divorced or widowed

11

1.4

Have children

 Yes

476

61.1

 No

303

38.9

Length of work experience

 < 2 years

55

7.1

 2 ~ 5 years

165

21.2

 5 ~ 10 years

262

33.6

 > 10 years

297

38.1

Training in PBC

 Yes

94

12.1

 No

685

87.9