From: Questions asked and answered in pilot and feasibility randomized controlled trials
MEDLINE/EMBASE search | Number of papers | |
---|---|---|
1 | pilot.ti | 40741 |
2 | feasibility.ti | 16179 |
3 | 1 or 2 | 56430 |
4 | limit 3 to randomized controlled trial | 7553 |
5 | limit 4 to english language | 7398 |
6 | limit 5 to humans | 7348 |
7 | limit 6 to yr = "2000 - 2009" | 5965 |
8 | remove duplicates from 7 | 3581 |
RANDOM SAMPLE OF PAPERS | Â | |
Papers randomly selected from 8 | 75 | |
EXCLUDED PAPERS (n = 25) | Â | |
Remove cross-over trials (n = 14) | 61 | |
Remove trials with only one arm (n = 1) | 60 | |
Remove historically controlled trials (n = 2) | 58 | |
Remove non-randomized trials (n = 2) | 56 | |
Remove letters (n = 1) | 55 | |
Remove brief reports (n = 1) | 54 | |
Remove study protocols (n = 1) | 53 | |
Remove review articles (n = 1) | 52 | |
Remove articles where 'pilot' or 'feasibility' in the trial did not relate to the trial (n = 2) | 50 |