Table 2 Trials published and correspondence between outcomes in the publication and ClinicalTrials.gov
N | % | N | % | N | % | N | % | |
|---|---|---|---|---|---|---|---|---|
Results Reported in | All (752) | < 2008 (254) | 2008-2015a (498) | |||||
Phase I (122) | Other studies types (376) | |||||||
ClinicalTrials.gov | NA | NA | NA | 130 | 34.6 | |||
Journal publication | 483 | 64.2 | 147 | 57.9 | 74 | 60.7 | 262 | 69.7 |
Outcome correspondence | All (483) | < 2008 (147) | Phase I (74) | Other studies types (262) | ||||
Primary Outcome | ||||||||
Corresponded | 249 | 51.8 | 40 | 27.0 | 37 | 50.7 | 172 | 66.2 |
Not corresponded | 50 | 10.4 | 13 | 8.8 | 7 | 9.6 | 30 | 11.5 |
Not declared in ClinicalTrials.gov | 182 | 37.8 | 95 | 64.2 | 29 | 39.7 | 58 | 22.3 |
Secondary Outcome | ||||||||
Corresponded | 157 | 39.3 | 24 | 19.1 | 27 | 41.5 | 106 | 50.7 |
Not corresponded | 65 | 16.2 | 14 | 11.1 | 7 | 10.8 | 44 | 21.1 |
Not declared in ClinicalTrials.gov | 178 | 44.5 | 88 | 69.8 | 31 | 47.7 | 59 | 28.2 |