Table 6 Major inconsistencies between conference abstract and final publication (n = 76) for all studies, as well as for randomized-controlled trials (RCT) and observational studies
RCT | Observational studies | Experimental study design | Total Publications | |||||
|---|---|---|---|---|---|---|---|---|
Percentage % | 95% CI | Percentage % | 95% CI | N | 95% CI | n | ||
Major inconsistency | 8 (80%) | 44-97 | 41 (54%) | 52-77 | 0 | 49 (65%) | 53-75 | 49 |
Study hypothesis different | 0 (0%) | 0-30 | 7 (11%) | 5-22 | 3 | 10 (13%) | 6-23 | 69 |
Study design different | 0 (0%) | 0-30 | 8 (13%) | 6-24 | 3 | 11 (15%) | 7-24 | 68 |
Primary outcome measure different | 1 (10%) | 0-46 | 10 (16%) | 8-27 | 3 | 14(18%) | 10-29 | 65 |
Sample size different | 7 (70%) | 35-93 | 25 (40%) | 28-53 | 0 | 32 (42%) | 31-54 | 32 |
Increased | 4 (40%) | 12-74 | 15 (24%) | 14-36 | 0 | 19 (25%) | 23-45 | 19 |
Decreased | 3 (30%) | 7-65 | 12 (19%) | 10-31 | 0 | 15 (20%) | 11-30 | 15 |
Not stated* | 0 (%) | 0-30 | 4 (6%) | 2-16 | 2 | 6 (8%) | 3-16 | 6 |
Sample size same | 3 (30%) | 7-65 | 32 (51%) | 38-64 | 1 | 36 (48%) | 36-59 | 36 |
Statistic Not stated | 9 (90%) | 56-100 | 59 (94%) | 85-98 | 3 | 71 (93%) | 85-98 | 71 |
Same | 1 (10%) | 0-46 | 2 (3%) | 0-11 | 0 | 3 (4%) | 1-11 | 3 |
Result different | 9 (90%) | 56-100 | 43 (68%) | 55-79 | 3 | 55 (72%) | 60-82 | 24 |
Data added | 6 (60%) | 26-88 | 19 (30%) | 19-43 | 0 | 25 (33%) | 23-45 | 25 |
Data deleted | 4 (40%) | 12-74 | 19 (30%) | 19-43 | 0 | 23 (30%) | 20-42 | 23 |
Complete changed | 0 | 0-30 | 3 (5%) | 1-13 | 0 | 3 (4%) | 1-11 | 3 |
SD/CI/, Injury rate, Incidence changed | 3 (30%) | 7-65 | 15 (24%) | 14-36 | 0 | 18 (24%) | 15-35 | 18 |