Criteria | Categories | Number of papers examined | Frequency of presence of significance in conclusions | % (95%CI) |
---|---|---|---|---|
Period | 1995-1996 | 285 | 35 | 14 (9 to 19) |
2000-2001 | 278 | 32 | 12 (8 to 16) | |
2005-2006 | 306 | 41 | 14 (9 to 19) | |
Language | Spanish | 396 | 39 | 10 (7 to 13) |
English | 473 | 69 | 15 (11 to 18) | |
Area | Clinical | 300 | 44 | 16 (11 to 20) |
General Medicine | 278 | 30 | 11 (7 to 15) | |
Public Health and Epidemiology | 291 | 34 | 12 (8 to 16) |