Variable | Prevalence in abstracts n = 100 | Prevalence in publications n = 62 | Change from abstract (A) to publication (P) |
---|---|---|---|
Randomized | 27 (27%) | 24 (39%) | 12/62 (19%): non-R in A; R in P |
Method of randomization | 0 (0%) | 0 (0%) | 0 (0%) |
Allocation concealment | 0 (0%) | 0 (0%) | 0 (0%) |
Blinding (possible) | 0 (0%) | 4 (6%) | 4/62 (6%): no mention in A; blinding of some outcomes in P |
Sample size calculation | 0 (0%) | 0 (0%) | 0 (0%) |
Primary outcome stated | 26 (26%) | 3 (5%) | 10/62 (16%): 9 stated in A, not stated in P; 1 stated primary outcome was different between A and P |
Numbers with denominators | 6 (6%) | 21 (34%) | 17/62 (27%): no denominators in A; denominators in P |
Main outcomes positive | 90 (90%) | 62 (100%) | 5/62 (8%): negative in A; positive (or excluded) in P |
Number of animals stateda | 47 (47%) | 35 (56%) | 13/62 (21%): in the P the number was smaller in 3 (5%) and larger in 10 (16%) |
Statistically significant result of main outcomesb | 55 (55%) | 58 (94%) | 23/62 (37%): not significant (or not stated) in A; significant in P |