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

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

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