Evidence map›Paper›PMID 33291581›Full record

ArticleMolecules (Basel, Switzerland)2020

The Systemic Inflammation Index on Admission Predicts In-Hospital Mortality in COVID-19 Patients.

Alessandro G Fois, Panagiotis Paliogiannis, Valentina Scano, Stefania Cau, Sergio Babudieri, Roberto Perra, Giulia Ruzzittu, Elisabetta Zinellu, Pietro Pirina, Ciriaco Carru and 5 more

Abstract read
In one paragraph

Article in Molecules (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 200 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
200citing papers in PubMed, 8 pooled it
–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

200 citing papers in PubMed, 8 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Neutrophil-to-lymphocyte ratio and platelet-to-lymphocyte ratio in retinal artery occlusion: a meta-analysis.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2025
    Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Pooled it
  8. Pooled it
  9. Article
  10. Article
  11. Review
  12. Article
  13. Observational
  14. Article
  15. Article
  16. Article
  17. Article
  18. Observational
  19. Article
  20. Article

140 more citing papers are in PubMed but not listed here.

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

15 authors.

Alessandro G FoisDepartment of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy.
Panagiotis PaliogiannisDepartment of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy.ORCID 0000-0001-5485-6056
Valentina ScanoDepartment of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy.
Stefania CauDepartment of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy.
Sergio BabudieriDepartment of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy.ORCID 0000-0001-7291-8687
Roberto PerraPneumology Unit, Santissima Trinità Hospital, 09121 Cagliari, Italy.
Giulia RuzzittuMater Olbia Hospital, 07026 Olbia, Italy.
Elisabetta ZinelluUnit of Respiratory Diseases, University Hospital Sassari (AOU), 07100 Sassari, Italy.
Pietro PirinaDepartment of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy.ORCID 0000-0003-1457-8025
Ciriaco CarruDepartment of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy.ORCID 0000-0002-6985-4907
Luigi B ArruOperative Unit of Hematology, Center for Stem Cell Transplantation, San Francesco Hospital, 08100 Nuoro, Italy.
Alessandro FancelluDepartment of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy.ORCID 0000-0002-3997-8183
Michele MondoniRespiratory Unit, ASST Santi Paolo e Carlo, San Paolo Hospital, Department of Health Sciences, University of Milan, 20122 Milan, Italy.
Arduino A MangoniDepartment of Clinical Pharmacology, College of Medicine and Public Health, Flinders University and Flinders Medical Centre, Adelaide 5042, Australia.ORCID 0000-0001-8699-1412
Angelo ZinelluDepartment of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy.ORCID 0000-0002-8396-0968

Funding

Fondazione di Sardegna, Sassari, Italy Prat. 2016.0917
6 · The paper itself

Abstract

backgroundThe rapid onset of a systemic pro-inflammatory state followed by acute respiratory distress syndrome is the leading cause of mortality in patients with COVID-19. We performed a retrospective observational study to explore the capacity of different complete blood cell count (CBC)-derived inflammation indexes to predict in-hospital mortality in this group.

methodsThe neutrophil to lymphocyte ratio (NLR), derived NLR (dNLR), platelet to lymphocyte ratio (PLR), mean platelet volume to platelet ratio (MPR), neutrophil to lymphocyte × platelet ratio (NLPR), monocyte to lymphocyte ratio (MLR), systemic inflammation response index (SIRI), systemic inflammation index (SII), and the aggregate index of systemic inflammation (AISI) were calculated on hospital admission in 119 patients with laboratory confirmed COVID-19.

resultsNon-survivors had significantly higher AISI, dNLR, NLPR, NLR, SII, and SIRI values when compared to survivors. Similarly, Kaplan-Meier survival curves showed significantly lower survival in patients with higher AISI, dNLR, MLR, NLPR, NLR, SII, and SIRI. However, after adjusting for confounders, only the SII remained significantly associated with survival (HR = 1.0001; 95% CI, 1.0000-1.0001,

conclusionsThe SII on admission independently predicts in-hospital mortality in COVID-19 patients and may assist with early risk stratification in this group.

Indexed as

Hospital MortalityAgedAged, 80 and overBlood Cell CountComorbidityCOVID-19FemaleHumansInflammationLymphocyte CountMaleMiddle AgedNeutrophilsRetrospective StudiesROC CurveCBCcoronavirusCOVID-19inflammationSII

Identifiers

PMID33291581
PMCPMC7731255

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.