Table 2 Reasons for excluding papers
From: An assessment of the quality of randomised controlled trials conducted in China
Reason for exclusion | Number of papers |
|---|---|
Before/after studies | 17 |
Brief report given only | 6 |
Case control study | 5 |
Phase II trial (no control arm) | 4 |
Randomisation not mentioned in full text | 2 |
Allocated by patients' choice | 1 |
Allocated by patients' economic status | 1 |
Total | 36 |