Variable | Prevalence in lower impact n = 32 | Prevalence in higher impact n = 30 | p value of comparison | Change from abstract (A) to publication (P) |
---|---|---|---|---|
Randomized | 12 (38%) | 12 (40%) | 0.99 | Â |
 Change from A to P | 8 (25%) | 4 (13%) | 0.25 | All 12: from non-R in A, to R in P |
 Method | 0 (0%) | 0 (0%) | – | – |
 Allocation concealment | 0 (0%) | 0 (0%) | – | – |
Blinding (possible) | 0 (0%) | 4 (13%) | 0.049 | Â |
 Change from A to P | 0 (0%) | 4 (13%) | 0.049 | All 4: from no mention in A, to blinding of some outcomes in P |
Sample size calculation | 0 (0%) | 0 (0%) | – | – |
Primary outcome stated | 3 (9%) | 0 (0%) | 0.09 | Â |
 Change from A to P | 3 (9%) | 6 (20%) | 0.24 | All 9: state in A, to not stated in P |
Numbers with denominators | 8 (25%) | 13 (43%) | 0.13 | Â |
 Change from A to P | 6 (19%) | 10 (33%) | 0.19 | All 16: no denominators in A, to denominators in P |
Main outcomes positive | 32 (100%) | 30 (100%) | – |  |
 Change from A to P | 4 (13%) | 1 (3%) | 0.19 | All 5: negative in A, to positive or excluded in P |
Number of animals stateda | 17 (53%) | 18 (60%) | 0.59 | Â |
 Change from A to P | 6 (19%) | 7 (23%) | 0.66 | From A to P the number was smaller in 3 (9%) and larger in 10 (29%)a |
Statistically significant result of main outcomes | 30 (94%) | 28 (93%) | 0.95 | Â |
 Change from A to P | 13 (41%) | 10 (33%) | 0.55 | All 23: not significant (or not stated) in A, to significant in Pb |
Months to publication | 27 (SD 17) | 18 (SD 16) | 0.02 | – |