Sepsis & infection

Multicenter Validation of Clinical Sepsis Phenotypes

JAMA Netw OpenPublished Multisite retrospective cohort study

Authors' conclusion

This study suggests that the 4 clinical phenotypes of the SENECA data are not generalizable across 3 independent cohorts.

Study context

Population
Adults admitted to university hospital EDs with body fluid cultures, antibiotics and SOFA score ≥2, all within 6 hours of admissionpatient encounters
Participants
30,865 / 15,575 / 1,806
Exposure
Site-derived clinical phenotypes vs Sepsis Endotyping in Emergency Care (SENECA)-derived phenotypes, and between sites
  • Stockholmn = 30,865
  • Oxfordn = 15,575
  • Oslon = 1,806
Outcome
Consistency of 4 k-means consensus-clustering clinical phenotypes derived at each site with SENECA-derived phenotypes and with one another
Methodological detailsmulticentre, validation study, consensus clustering with k-means, Data analysis November 2, 2023, to September 1, 2025
  • Multicentre
  • Validation study
  • Consensus clustering with k-means
  • Data analysis November 2, 2023, to September 1, 2025

Main finding

As reported in the abstract

Agreement with SENECA clinical phenotypes
GroupCohen κAdjusted Rand Index
Stockholm0.320.21
Oxford0.400.26
Oslo0.370.27

Cohen κ

Stockholm0.32
Oxford0.40
Oslo0.37

Adjusted Rand Index

Stockholm0.21
Oxford0.26
Oslo0.27

Observational data: associations, not effects.

Further findings

Consistency between phenotypes derived in Stockholm, Oxford and Oslo

Little consistency between the sites' phenotypes

Original publication

Multicenter Validation of Clinical Sepsis Phenotypes. JAMA Netw Open. Published 1 June 2026. doi:10.1001/jamanetworkopen.2026.16134

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