| Proportion adhering to criteria | Unadjusted odds ratio | Adjustedg odds ratio | ||
---|---|---|---|---|---|
Reported accounting for clustering in analysis (includes secondary reports, 84 reports) | |||||
  No statistician co-author | 16/28 | Reference category |  | ||
  Co-author included statistician | 44/56 | 3.2 | (1.2,8.5) | 3.1 | (1.1,8.7) |
  Publication prior to 2005 | 22/33 | Reference category |  | ||
  Journal CONSORT endorsement lowf | 9/14 | 0.9 | (0.2,3.3) | 0.8 | (0.2,3.3) |
  Journal CONSORT endorsement mediumf | 16/21 | 1.6 | (0.5,5.5) | 1.1 | (0.3,4.2) |
  Journal CONSORT endorsement highf | 12/16 | 1.5 | (0.4,5.8) | 1.4 | (0.3,6.5) |
Reported accounting for clustering in sample size (unique trials, 73 reports) | |||||
  No statistician co-author | 2/22 | Reference category |  | ||
  Co-author included statistician | 18/51 | 5.4 | (1.1,26.7) | 2.7 | (0.5,16.2) |
  Publication prior to 2005 | 4/29 | Reference category |  | ||
  Journal CONSORT endorsement lowf | 4/11 | 3.6 | (0.7,18.0) | 3.5 | (0.6,18.8) |
  Journal CONSORT endorsement mediumf | 5/18 | 2.4 | (0.5,10.5) | 1.7 | (0.4,7.7) |
  Journal CONSORT endorsement highf | 7/15 | 5.5 | (1.3,23.6) | 4.7 | (1.0,21.8) |
Identification/recruitment bias is not possible or unlikely (unique trials, 73 reports) | |||||
  No statistician co-author | 12/22 | Reference category |  | ||
  Co-author included statistician | 32/51 | 1.4 | (0.5,3.9) | 1.3 | (0.4,4.0) |
  Publication prior to 2005 | 15/29 | Reference category |  | ||
  Journal CONSORT endorsement lowf | 9/11 | 4.2 | (0.8,22.9) | 4.1 | (0.8,22.7) |
  Journal CONSORT endorsement mediumf | 12/18 | 1.9 | (0.5,6.3) | 1.8 | (0.5,6.4) |
  Journal CONSORT endorsement highf | 8/15 | 1.1 | (0.3,3.7) | 10.2 | (0.3,4.5) |