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Table 5 Agreement between conference abstract and ClinicalTrials.gov register on outcomes (n = 40 abstract-ClinicalTrials.gov pairs reporting ≥ 1 primary outcome and 152 abstract-clinicaltrials.gov pairs reporting a non-primary outcome)

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

 

Primary Outcome

Non-primary outcome

No. (%)

No. (%)

Total outcomes reported in abstract

80 (100)

708 (100)

Complete agreement

14 (18)

57 (8)

Partial agreement

39 (49)

205 (29)

Not reported in ClinicalTrials.gov

27 (34)

446 (63)