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Table 2 The occurrence of protocol registration

From: Protocol registration issues of systematic review and meta-analysis studies: a survey of global researchers

 

Number (%)

Site of previous SR/MA protocols register, n = 150 (checklist choice)

 ➣ PROSPERO University of York

107 (71.3)

 ➣ Cochrane Database of SRs (CDSR)

68 (45.3)

 ➣ Campbell Collaboration

4 (2.7)

 ➣ Other

13 (8.7)

Proportion of SR/MA that was registered before starting, n = 267

 ➣ 100%

27 (10.1)

 ➣ 80–100%

21 (7.9)

 ➣ 50–80%

32 (12)

 ➣ 20–50%

27 (10.1)

 ➣ < 20%

42 (15.7)

 ➣ None of them

118 (44.2)

Proportion of SR/MA that was registered, but never come to publish, n = 260

 ➣ 100%

2 (0.8)

 ➣ 80–100%

1 (04)

 ➣ 50–80%

1 (0.4)

 ➣ 20–50%

10 (3.8)

 ➣ < 20%

38 (14.7)

 ➣ None of them

190 (80)

Reason for not publishing registered SR/MA, n = 185 (checklist choice)

 ➣ Have not reached the favorable conclusion

48 (26)

 ➣ Have not finished

129 (69.7)

 ➣ Pressure from sponsor/contractor

18 (9.7)

 ➣ Other

46 (24.9)

Ever conducted SR/MA of basic biomedicine, such as in vivo or in vitro studies? n = 267

43 (16.1)

If yes, did you register the protocol, n = 96

 ➣ Yes

9 (9.4)

Have you been rejected by PROSPERO when submitted a SR/MA protocol in basic biomedicine?, n = 191

3 (1.6)

If yes, What did you do when you got the rejection, n = 18

 ➣ Contact PROSPERO University of York

2 (11.1)

 ➣ Revise and re-submit it to PROSPERO without any contact

0 (0)

 ➣ Other

16 (88.9)

Duration for the PROSPERO to accept protocol?, n = 107

 ➣ 1 to 3 working days

62 (58)

 ➣ 4 to 6 working days

22 (20.6)

 ➣ 1 week to 1 month

22 (20.6)

 ➣ > 1 month

1 (1)

Average duration (in months) from registration to submission of your SR/MA manuscript, mean (SD), n = 115

11.1 (8.1)

Is registration of SR/MA protocol required in your institution?, n = 247

 ➣ Yes

15 (6.1)

 ➣ No

190 (77)

 ➣ Do not know

42 (17)

Are your SR/MA protocols agreed by sponsors?, n = 206

 ➣ Yes

53 (26)

 ➣ No

53 (26)

 ➣ I do not inform the sponsor

100 (48)

Opinion on reason for not registering SR/MA, n = 263 (checklist choice)

 ➣ Submitting protocol takes too much time

86 (32.7)

 ➣ Afraid of others stealing ideas

64 (24.3)

 ➣ Did not know that it should be registered

118 (44.9)

 ➣ Have no idea about the benefit of registering the protocol

92 (35)

 ➣ It is not mandatory

113 (43)

 ➣ Other

30 (11.41)

  1. SR/MA: systematic review meta-analysis