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Table 3 Overview of study status, publication status, and sponsorship (Status: December 2006)

From: Negative pressure wound therapy: Potential publication bias caused by lack of access to unpublished study results data

 

Study status

 
 

Completed (trials/patients)

Discontinued (trials/patients)

Ongoing (trials/patients)

Unclear (trials/patients)

Total (trials/patients)

Publication status

     

Published*

9/473

1/22

(2/88)

(0/0)

10/495†

Unpublished‡

4/328

5/826

(4/500)

(3/?)

9/1154†

Sponsorship

     

Industrial

8/413

6/848

5/1076

0/0

19/2337

Unclear

5/388

0/0

1/30

3/?

9/418

Total

13/801

6/848

6/1106

3/?

28/2755

  1. * Analysed patients.
  2. † Published/unpublished: full-text publications of final results (completed trials) or interim results (discontinued trials) were available/not available.
  3. ‡ Planned patients.