Evidence map›Paper›PMID 34458890›Full record

ArticleAnnals of surgery open : perspectives of surgical history, education, and clinical approaches2021

Association of Teaching Status and Mortality After Cancer Surgery.

Miranda B Lam, Kristen Riley, Winta Mehtsun, Jessica Phelan, E John Orav, Ashish K Jha, Laura G Burke

Abstract read
In one paragraph

Article in Annals of surgery open : perspectives of surgical history, education, and clinical approaches, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Miranda B LamHarvard School of Public Health, Department of Health Policy and Management, Boston, MA.
Kristen RileyHarvard School of Public Health, Department of Health Policy and Management, Boston, MA.
Winta MehtsunHarvard Medical School, Boston, MA.
Jessica PhelanHarvard School of Public Health, Department of Health Policy and Management, Boston, MA.
E John OravHarvard Medical School, Boston, MA.
Ashish K JhaBrown University School of Public Health, Providence, RI.
Laura G BurkeHarvard School of Public Health, Department of Health Policy and Management, Boston, MA.

Funding

Institutional Career Development CoreKL2TR002542 · NCATS · HARVARD MEDICAL SCHOOL · PI BREDELLA, MIRIAM ANTOINETTE, RUTKOVE, SEWARD B. · 2018 to 2022
$8.7M
NCATS NIH HHS KL2 TR002542
6 · The paper itself

Abstract

objectiveTo examine patient outcomes for nine cancer-specific procedures performed in teaching versus non-teaching hospitals. SUMMARY BACKGROUND DATA: Few contemporary studies have evaluated patient outcomes in teaching versus non-teaching hospitals across a comprehensive set of cancer-specific procedures.

methodsUse of national Medicare data to compare 30-, 60-, and 90-day mortality rates in teaching and non-teaching hospitals for cancer-specific procedures. Risk-adjusted 30-day, all-cause, postoperative mortality overall and for each specific surgery, as well as overall 60- and 90-day mortality rates, were assessed.

resultsThe sample consisted of 159,421 total cancer surgeries at 3,151 hospitals. Overall thirty-day mortality rates, adjusted for procedure type, state, and invasiveness of procedure were 1.3% lower at major teaching hospitals (95%CI=-1.6% to -1.1%; p<0.001) relative to non-teaching hospitals. After accounting for patient characteristics, major teaching hospitals continued to demonstrate lower mortality rates compared with non-teaching hospitals (-1.0% difference [95%CI -1.2% to -0.7%]; p<0.001). Further adjustment for surgical volume as a mediator reduced the difference to -0.7% (95%CI -0.9% to -0.4%, p<0.001). Cancer surgeries for four of the nine disease sites (bladder, lung, colorectal and ovarian) followed this overall trend. Sixty- and ninety-day overall mortality rates, adjusted for procedure type, state, and invasiveness of procedure showed that major teaching hospitals had a 1.7% (95%CI -2.1% to -1.4%; p<0.001) and 2.0% (95%CI -2.4 to -1.6%, p<0.001) lower mortality relative to non-teaching hospitals. These trends persisted after adjusting for patient characteristics.

conclusionsAmong cancer-specific procedures for Medicare beneficiaries, major teaching hospital status was associated with lower 30-, 60-, and 90-day mortality rates overall and across four of the nine cancer types.

Identifiers

PMID34458890
PMCPMC8389472

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.