From: User testing of an adaptation of fishbone diagrams to depict results of systematic reviews
Outcomes | № of participants (studies) Follow-up | Certainty of the evidence (GRADE) | Relative effect (95% CI) | Anticipated absolute effects | |
---|---|---|---|---|---|
Risk with no intervention | Risk difference with preoperative treatment for anemia | ||||
Reduction of Mortality follow up: range 7 days to 30 days | 210 (3 RCTs) | ⨁⨁◯◯ LOW 1 | RR 1.59 (0.48 to 5.31) | 38 per 1000 | 23 more per 1000 (20 fewer to 160 more) |
Quality of Life | (0 studies) | – | not estimable | 0 per 1000 | 0 fewer per 1000 (0 fewer to 0 fewer) |
Need for Blood Transfusions follow up: range 7 days to 30 days | 304 (5 RCTs) | ⨁⨁⨁◯ MODERATE 2 | RR 0.78 (0.61 to 1.02) | 532 per 1000 | 117 fewer per 1000(207 fewer to 11 more) |
Duration of Hospital Stay follow up: mean 30 days | 74 (1 RCT) | ⨁◯◯◯ VERY LOW 1,3 | not estimable | The mean duration of hospital stay was | 11.3 vs. 13.5 days (difference not statistically significant) |
Thromboembolic Events follow up: range 7 days to 30 days | 421 (4 RCTs) | ⨁⨁◯◯ LOW 1 | RR 1.71 (0.41 to 7.08) | 0 per 1000 | 0 fewer per 1000(2 fewer to 40 more) |
Rate of Infections | (0 studies) | – | not estimable | 0 per 1000 | 0 fewer per 1000 (0 fewer to 0 fewer) |