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Table 2 Numbers of ClinicalTrials.gov records and publications found

From: Does information from ClinicalTrials.gov increase transparency and reduce bias? Results from a five-report case series

 

Diabetic peripheral neuropathy

Infertility

Omega-3 and CVD

Mental health

Tympanostomy tubes

Total studies with ClinicalTrials.gov record or publication

106

28

141

20

200

Studies with both ClinicalTrials.gov record and publication

All (%)

30 (28)

12 (43)

26 (18)

4 (20)

6 (3)

ClinicalTrials.gov record only

All (%)

23 (22)

4 (14)

43 (30)

3 (15)

22 (11)

 With results/all

• 7/23

• 4/4

• 0/43

• 0/3

• 2/22

 > 3 years old/all

• 13/23

• 2/4

• 9/43

• 0/3

• 5/22

Total studies with ClinicalTrials.gov record or publication

 All (%)

53(50)

12 (43)

72 (52)

13 (65)

172 (86)

 Since 2000/all

• 30/53

• 0/12

• 58/72

• 13/13

• 97/172