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. 2010 Dec 1;10(27):1–118.
Robotics Compared to Abdominal: Gynecologic Oncology
Outcomes Illustrative comparative risks* (95% CI) Relative effect (95% CI) No of Participants (studies) Quality of the evidence (GRADE) Comments**
Assumed risk Corresponding risk
Abdominal Robotic
Length of Hospitalization The mean length of hospitalization in the intervention groups was 2.05 lower (2.72 to 1.39 lower) 671 (6 studies) □□⊖⊖
low1
RB > OS
Complications Study population OR 0.37 (0.23 to 0.61) 1059 (10 studies) □□⊖⊖
low1,2
RB > OS
337 per 1000 158 per 1000 (105 to 237)
Medium risk population
280 per 1000 126 per 1000 (82 to 192)
Operation Time The mean operation time in the intervention groups was 0.66 higher (0.16 to 1.16 higher) 855 (8 studies) □□⊖⊖
low3
RB < OS
Blood Loss The mean blood loss in the intervention groups was 223.07 lower (294.47 to 151.67 lower) 563 (5 studies) □□⊖⊖
low1
RB > OS
Lymph Nodes The mean lymph nodes in the intervention groups was 2.34 lower (6.87 lower to 2.19 higher) 693 (7 studies) □⊖⊖⊖
very low4
n/a
*

The basis for the assumed risk (e.g. the median control group risk across studies) is provided in footnotes. The corresponding risk (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).

**

RB > OS indicates that robotics had a more favourable profile for the specific outcome; RB < OS indicates robotics had a less favourable profile for the specific outcome.

CI: Confidence interval; OR: Odds ratio; RB: Robotics; OS: Open surgery.

GRADE Working Group grades of evidence

High quality: Further research is very unlikely to change our confidence in the estimate of effect.

Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate.

Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate.

Very low quality: We are very uncertain about the estimate.

1

Level of surgeon skill differed across studies.

2

Complications were reported differently across studies.

3

Surgeons experienced in robotics had a more favourable operating time.

4

Inconsistency not explained by level of surgeon skill or patient characteristics