NELA Interim Report on COVID-19

The NELA team have published an interim report on the impact of COVID-19 on emergency laparotomy between March - September 2020. The full report and summary infographic can be found below.

Key Findings

  • The overall number of patients who had emergency laparotomy fell by 20% during the period reported when compared with the same time frame in the previous year.
  • The inpatient 30-day mortality of patients without COVID-19 fell to 7.6%, meaning that the outcomes of those without COVID-19 did not seem to be impacted. However, patients who had emergency laparotomy and also had COVID-19 had a higher chance of dying, at 12.5%, which was higher than predicted by the NELA risk model. This means that patients with COVID-19 undergoing emergency laparotomy are high-risk and must be recognised as such. This is important when making shared decisions with patients.
  • Admission directly to critical care for high-risk patients reduced during the peak of the COVID-19 pandemic. Slightly more patients with COVID-19 went to critical care than those without.
  • Overall, standards of care for patients undergoing emergency laparotomy were maintained during the COVID-19 pandemic.

NELA Interim Report on COVID-19 - Full Report:

 COVID_analysis_08 Mar 2021.pdf (1.92 MB)

NELA Interim Report on COVID-19 - Summary Infographic:

 COVID Report Infographic_FINAL.pdf (1.08 MB)

Technical Documents

 NELA-(2020)-Recalibrated-risk-model-coefficients.pdf (261 KB)
For further information on the update to the NELA Risk Adjustment Model go to

 NELA Standards Calculations April 2019.pdf (636 KB)
 NELA Technical Document - Overview of Hospital Episode Statistics (HES) July 2016.pdf (432 KB)
 NELA Technical Document - Sumary of Methods July 2016.pdf (190 KB)
 NELA - Show workings for Second NELA Report.pdf (289 KB)
 Process-Outcome Measures.pdf (378 KB)

NELA Dashboard

To access real-time national data via the NELA Online Dashboard, please go to:

Dashboard User Notes

If you are an audit participant and would like to see your real-time local data in comparison to the national, please click the link above. Here you can download the NELA Dashboard User Notes.

 NELA-Patient-Audit-Dashboard-User-Notes.pdf (710 KB)