Sepsis & infection

Consistency between metagenomic next-generation sequencing versus traditional microbiological tests for infective disease: systemic review and meta-analysis

Crit CarePublished Systematic review and meta-analysis

Authors' conclusion

This review demonstrates a moderate relationship between mNGS and traditional pathogen tests, indicating a complex relationship between these two methods. Sterile samples show higher consistency than non-sterile samples. Immune function deficiency may reduce the consistency between mNGS and traditional tests.

Study context

Population
Patients with infective disease (sepsis and septic shock context)
Participants
4,112 patients · 27 studies
Comparison
Metagenomic next-generation sequencing (mNGS) vs traditional microbiological tests
Outcome
Kappa consistency between mNGS and traditional pathogen tests
Methodological detailsQUADAS-2 quality assessment
  • QUADAS-2 quality assessment

Pooled result

As reported in the abstract

Pooled kappa consistency

Pooled consistency, moderate relationship (p < 0.001)

0.319 ± 0.013

Further pooled results

Kappa consistency, cerebrospinal fluid samples (subgroup)

Highest pooled kappa consistency among sample types (p < 0.001)
0.500 ± 0.029

Kappa consistency by immune status (subgroup)

Immunocompromised patients (p < 0.001)
0.294 ± 0.014
Immunocompetent patients (p < 0.001)
0.321 ± 0.028

Percent agreement of mNGS vs traditional tests

Positive percent agreement
83.63%
Negative percent agreement
54.59%

Original publication

Consistency between metagenomic next-generation sequencing versus traditional microbiological tests for infective disease: systemic review and meta-analysis. Crit Care. Published 3 February 2025. doi:10.1186/s13054-025-05288-9

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