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Table 4 Agreement between conference abstract and ClinicalTrials.gov register on reporting of one or more primary outcomes (n = 152 abstract-Clinical Trials.gov pairs)

From: ClinicalTrials.gov registration can supplement information in abstracts for systematic reviews: a comparison study

Abstract

ClinicalTrials.gov

Reporting ≥ primary outcome

Not reporting a primary outcome

Total number of pairs

No.

No.

No.

Reporting ≥ one primary outcome

40

12

52

Not reporting a primary outcome

86

16

102

Total number of pairs

126

28

154