Table 3 Characteristics of included studies

North America and Canada

33

53,2%

Europe

17

27,4%

Australia

8

12,9%

Asia

3

4,8%

Methodology

 Qualitative

26

42%

 Quantitative

25

40%

 Reviews

8

13%

 Mixed methods

2

3%

Discipline^a

 Medicine

42

79%

 Veterinary Medicine

2

4%

 Medicine and Midwifery

2

4%

 Three or more disciplines

2

4%

 Nursing

1

2%

 Midwifery

1

2%

 Medicine and Physician Assistance

1

2%

 Medicine and Veterinary Medicine

1

2%

 Nursing; Radiation Therapy

1

2%