Co-enrollment of critically ill patients into multiple studies: patterns, predictors and consequences

Table 3 Co-enrollment study characteristics.

	N (% of 713 patients)
Type of other study
Randomized trial	380 (53.3)
Observational study	265 (37.2)
Both	68 (9.5)
Genesis of other study
Investigator-initiated	695 (97.5)
Industry-initiated	15 (2.1)
Both	3 (0.4)
CCCTG or ANZICS affiliated study
Yes	451 (63.3)
No	181 (25.4)
Both	81 (11.4)
Number of studies into which patients were co-enrolled
1	591 (82.9)
2	94(13.2)
3	25 (3.5)
4*	3 (0.4)

In this table, among the 713 patients who were co-enrolled in another study, we present the co-enrollment study type (randomized trial, observational study), study genesis (investigator-initiated versus industry-initiated), affiliation with a research consortia, and the number of studies into which PROTECT patients were co-enrolled. The bottom half of the table outlines, of the 865 co-enrollments, which studies were involved. ANZICS, Australian and New Zealand Intensive Care Society Clinical Trials Group; CCCTG, Canadian Critical Care Trials Group.

ISSN: 1364-8535