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Table 1 Number and type of CONSORT extensions (n = 197 manuscripts)

From: Impact of a web-based tool (WebCONSORT) to improve the reporting of randomised trials: results of a randomised controlled trial

 

WebCONSORT(n = 94)

Control(n = 103)

Number of extensions selecteda

 No extension

34 (36%)

29 (28%)

 1 extension

37 (40%)

53 (52%)

 2 extensions

21 (22%)

20 (19%)

 3 extensions

1 (1%)

1 (1%)

 4 extensions

1 (1%)

0

Type of extension selectedb

 Non-pharmacological extension

43

50

 Cluster extension

10

9

 Non-inferiority extension

9

8

 Pragmatic extension

20

16

 Herbal extension

2

13

 Acupuncture extension

2

0

 Extension correctly matchedc

  Yes

72 (77%)

82 (80%)

  No

22 (23%)

21 (20%)

Reason for mismatchd

 Author wrongly selected:

  

  Pragmatic extension

4

5

  Cluster extension

6

4

  Non-inferiority extension

3

5

  Non-pharmacological extension

2

1

 Author failed to select:

  

  Non-pharmacological extension

10

7

  Non-inferiority extension

1

0

  1. aNumber of extension(s) selected by the author when registering their manuscript on the WebCONSORT randomisation site
  2. bType of extension(s) selected by the author when registering their manuscript on the WebCONSORT randomisation site
  3. cWhether extension(s) selected by the author when registering their manuscript was assessed as being the appropriate extension
  4. dThere may be more than one reason for a miss match between the extension selected by the author and the extension which should have been selected