Table 4 Presentation of results in the Results section and abstract for studies reporting adjusted analysis
Year of Publication | Results Section | Abstract | ||||
|---|---|---|---|---|---|---|
|  | 2000 (n = 54) | 2006 (n = 89) | P-value | 2000 (n = 71)* | 2006 (n = 101)†| P-value |
Summary statistics for each group | Â | Â | 0.7 | Â | Â | 0.5 |
   Unadjusted only | 42 (78%) | 70 (80%) |  | 26 (37%) | 45 (44%) |  |
   Adjusted only | 6 (11%) | 12 (14%) |  | 3 (4%) | 5 (5%) |  |
   Both | 4 (7%) | 3 (3%) |  | 0 | 0 |  |
   None/not clear | 2 (4%) | 3 (3%) |  | 42 (59%) | 51 (51%) |  |
Confidence interval/SE within group | Â | Â | 0.2 | Â | Â | 1.0 |
   Unadjusted only | 12 (22%) | 11 (13%) |  | 2 (3%) | 2 (2%) |  |
   Adjusted only | 6 (11%) | 10 (11%) |  | 2 (3%) | 4 (4%) |  |
   Both | 1 (2%) | 0 |  | 0 (%) | 0 |  |
   None/not clear | 35 (65%) | 67 (76%) |  | 67 (94%) | 95 (94%) |  |
Treatment effect | Â | Â | 0.4 | Â | Â | 0.1 |
   Unadjusted only | 5 (9%) | 5 (6%) |  | 3 (4%) | 5 (5%) |  |
   Adjusted only | 17 (31%) | 35 (39%) |  | 5 (7%) | 19 (19%) |  |
   Both | 4 (7%) | 12 (13%) |  | 1 (2%) | 1 (1%) |  |
   None/not clear | 28 (52%) | 37 (42%) |  | 62 (87%) | 76 (75%) |  |
Confidence interval/SE of treatment effect | Â | Â | 0.6 | Â | Â | 0.4 |
   Unadjusted only | 6 (11%) | 5 (6%) |  | 2 (3%) | 6 (6%) |  |
   Adjusted only | 16 (30%) | 24 (27%) |  | 3 (4%) | 17 (17%) |  |
   Both | 4 (7%) | 10 (11%) |  | 1 (2%) | 1 (1%) |  |
   None/not clear | 28 (52%) | 49 (56%) |  | 65 (91%) | 77 (76%) |  |
P-value for treatment effect | Â | Â | 0.2 | Â | Â | 0.2 |
   Unadjusted only | 9 (17%) | 8 (9%) |  | 9 (13%) | 13 (13%) |  |
   Adjusted only | 27 (50%) | 52 (59%) |  | 13 (18%) | 30 (30%) |  |
   Both | 7 (13%) | 17 (19%) |  | 0 | 2 (2%) |  |
   None/not clear | 11 (20%) | 11 (13%) |  | 49 (69%) | 56 (55%) |  |