Table 1 Study groups included in meta-analysis (n = 64 published in 51 articles)

Aomatsu (2014)

Japan

Physicians/Primary Care

9

N/A

17.2 (14.3)

Attar (2012)

India

Physicians/Specialists

N/A

1.00

N/A

Bikker (2005)

UK

Physicians/CAM

9

N/A

50.1 (14.0)

Bikker (2015)

UK

Nurses

17

N/A

13.0 (7.6)

Birhanu (2012)

Ethiopia

Mixed

N/A

N/A

6.3 (2.6)

Buecken (2012)

Germany

Physicians/Specialists

N/A

N/A

N/A

Chen (2015)

Hong Kong

Medical Students

158

0.39

15.0 (N/A)

Chung (2012)

South Korea

Physicians/CAM

1

0.00

5.0 (N/A)

Chung, Yip (2016)

Hong Kong

TCM practitioners

N/A

N/A

N/A

Fogarty (2013)

Australia

TCM practitioners

1

1.00

60.0 (N/A)

Fritzsche (2011a)

China

Physicians/Specialists

2

N/A

N/A

Fritzsche (2011b)

China

Physicians/Specialists

5

N/A

N/A

Fritzsche (2011c)

China

Physicians/CAM

4

N/A

N/A

Fung (2009)

Hong Kong

Physicians/Primary Care

13

N/A

5.7 (3.9)

Griffin (2014a)

UK

Physicians/Primary Care

N/A

N/A

N/A

Griffin (2014b)

UK

Nurses

N/A

N/A

N/A

Gu (2015)

Hong Kong

N/A

332

N/A

N/A

Hanzevacki (2015)

Croatia

Physicians/Primary Care

8

N/A

6.8 (N/A)

Jani (2012)

UK

Physicians/Primary Care

47

N/A

9.5 (4.5)

Johnson (2012)

UK

Mixed

21

N/A

N/A

Johnston (2015)

UK

Mixed

17

N/A

N/A

Joice (2010)

UK

Psychotherapist

N/A

N/A

N/A

Kersten (2012)

UK

TCM practitioners

N/A

N/A

N/A

Lafreniere (2015)

US

Physicians/Specialists

44

0.57

41.2 (23.4)

LaVela (2015)

US

Physicians/Specialists

N/A

N/A

N/A

Lee (2012)

South Korea

Physicians/CAM

1

0.00

N/A

Lelorain (2015)

France

Physicians/Specialists

28

N/A

26.0 (14.0)

MacPherson (2003)

UK

TCM practitioners

N/A

N/A

N/A

Menendez (2015)

US

Physicians/Specialists

4

N/A

11.0 (7.0)

Mercer (2004)

UK

Physicians/Primary Care

N/A

N/A

N/A

Mercer (2005)

UK

Physicians/Primary Care

26

N/A

N/A

Mercer (2008a)

UK

Physicians/Primary Care

5

0.60

10.0 (N/A)

Mercer (2008b)

UK

Physicians/Specialists

31

N/A

N/A

Mercer (2008c)

UK

Physicians/Specialists

25

N/A

N/A

Mercer (2011)

Hong Kong

Physicians/Primary Care

20

0.30

5.5 (2.9)

Murphy (2013a)

UK

Allied health professionals

N/A

N/A

N/A

Murphy (2013b)

UK

Physicians/Primary Care

N/A

N/A

N/A

Neumann (2007)

Germany

Physicians/Specialists

N/A

N/A

N/A

Nezenega (2013)

Ethiopia

Mixed

N/A

N/A

7.1 (4.4)

Ohm (2013)

Germany

Medical Students

30

0.73

N/A

Parrish (2016)

US

Physicians/Specialists

5

N/A

10.0 (5.6)

Place (2016a)

UK

Allied health professionals

N/A

N/A

Place (2016b)

UK

Allied health professionals

N/A

N/A

Pollak (2015)

US

Physicians/Specialists

2

N/A

N/A

Price (2006)

UK

TCM practitioners

15

N/A

N/A

Price (2008)

UK

Physicians/Primary Care

35

N/A

10.2 (5.5)

Quaschning (2013)

Germany

Mixed

N/A

N/A

N/A

Rees (2014)

UK

Allied health professionals

N/A

N/A

N/A

Scales (2008)

US

Allied health professionals

1

N/A

N/A

Scarpellini (2014)

Brazil

Physicians/Specialists

12

N/A

N/A

Scheffer (2013a)

Germany

Medical Students

N/A

N/A

N/A

Scheffer (2013b)

Germany

Medical Students

N/A

N/A

N/A

Steinhausen (2014)

Germany

Physicians/Specialists

N/A

N/A

N/A

Tran (2012)

Australia

Physicians/Primary Care

3

N/A

15.0 (4.0)

Weiss (2015)

UK

Mixed

51

0.69

N/A

Wong (2013)

Hong Kong

Physicians/Primary Care

9

N/A

7.7 (4.7)

Wu (2015a)

China

Physicians/Specialists

N/A

N/A

N/A

Wu (2015b)

China

Physicians/CAM

N/A

N/A

N/A

Wu (2015c)

China

Physicians/Specialists

N/A

N/A

N/A

Yu (2015a)

Hong Kong

Physicians/not specified

6

0.33

4.5 (2.4)

Yu (2015b)

Hong Kong

Physicians/Specialists

7

0.57

10.5 (8.6)

Yu (2015c)

Hong Kong

Physicians/Primary Care

14

0.50

7.4 (4.8)

Zilliacus (2011a)

Australia

Physicians/Specialists

N/A

N/A

N/A

Zilliacus (2011b)

Australia

Genetic Counselor

N/A

N/A

N/A