Unique ID issued by UMIN | UMIN000033032 |
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Receipt number | R000037636 |
Scientific Title | Effect of hospital and surgeon volume on mortality following major operations: umbrella review of meta-analyses of observational studies |
Date of disclosure of the study information | 2018/06/20 |
Last modified on | 2018/06/18 10:42:49 |
Effect of hospital and surgeon volume on mortality following major operations: umbrella review of meta-analyses of observational studies
Hospital/surgeon volume and mortality
Effect of hospital and surgeon volume on mortality following major operations: umbrella review of meta-analyses of observational studies
Hospital/surgeon volume and mortality
Japan |
Patients undergoing surgery
Surgery in general |
Malignancy
NO
The goal of this study was to perform an umbrella review of systematic reviews and meta-analyses, to summarize the evidence, and to evaluate the validity and presence of biases in the relations between hospital/surgeon volume and mortality for a wide variety of major operations.
Safety
in-hospital or 30-day morality
Others,meta-analysis etc
18 | years-old | <= |
80 | years-old | >= |
Male and Female
Patients undergoing major surgery
Pediatric surgery, coronary intervention, intervention not referred to surgery
100000
1st name | |
Middle name | |
Last name | Toshiya Shiga |
International University of Health and Welfare Ichikawa Hospital
Department of Anesthesiology
Konodai,
047-375-1111
qzx02115@nifty.com
1st name | |
Middle name | |
Last name | Toshiya Shiga |
International University of Health and Welfare Ichikawa Hospital
Department of Anesthesiology
Konodai,
047-375-1111
qzx02115@nifty.com
International University of Health and Welfare
International University of Health and Welfare
Other
NO
2018 | Year | 06 | Month | 20 | Day |
Partially published
Main results already published
2017 | Year | 04 | Month | 01 | Day |
2017 | Year | 04 | Month | 01 | Day |
Nineteen meta-analyses were identified for hospital-mortality associations, and 11 meta-analyses were identified for surgeon-mortality associations. For hospital-mortality associations, high hospital volume was significantly associated with lower mortality in 16 meta-analyses (84%) with summary random effect estimates. The presence of publication bias was identified in only 2 meta-analyses (11%), and 11 meta-analyses (58%) had substantial heterogeneity (I2>75%). For surgeon-mortality associations, high surgeon volume was significantly associated with lower mortality in 9 meta-analyses (82%). The presence of publication bias was identified in only 1 meta-analysis (18%), and 2 meta-analyses (%) had substantial heterogeneity (I2>75%). The 95% prediction intervals excluded the null value for 5 operations (pancreaticoduodenectomy, repair of ruptured and unruptured abdominal aortic aneurysm, and colorectal or esophageal cancer resection).
2018 | Year | 06 | Month | 18 | Day |
2018 | Year | 06 | Month | 18 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000037636
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