Respiratory failure & ventilation

The Relationship Between Metabolic Syndrome and Mortality Among Patients With Acute Respiratory Distress Syndrome in Acute Respiratory Distress Syndrome Network and Prevention and Early Treatment of Acute Lung Injury Network Trials*

Crit Care MedPublished Retrospective cohort study

Main finding · 28-day mortalityResult — go to the resultAdjusted odds ratio 0.70 95% CI 0.55–0.89

Authors' conclusion

Metabolic syndrome in ARDS was associated with a lower risk of mortality in non-COVID-19 ARDS.

Study context

Population
Hospitalised patients with non-COVID-19 acute respiratory distress syndrome (ARDS) in ARDS Network and PETAL Network trials
Participants
4,288 patients · 7 RCTs
Exposure
Metabolic syndrome vs control
  • Metabolic syndromen = 454
  • Controln = 3,834reference
Outcome
28-day mortality
Follow-up
28 days
Methodological detailsancillary analysis of seven randomised trials
  • Ancillary analysis of seven randomised trials

Main finding

As reported in the abstract

Adjusted odds ratio

0.70

95% CI 0.55–0.89

Metabolic syndrome vs Control
aOR 0.70 (95% CI 0.55–0.89)

Observational data: associations, not effects.

Further findings

OutcomeaOR (95% CI)
90-day mortality · adjusted analyses0.75 (0.60–0.95)
Mortality, ARDS from sepsis or pneumonia (subgroup)Metabolic syndrome vs Control · 28 d0.64 (0.48–0.84)
Mortality, ARDS from sepsis or pneumonia (subgroup)Metabolic syndrome vs Control · 90 d0.69 (0.53–0.89)
Mortality, ARDS from noninfectious causes (subgroup)Metabolic syndrome vs Control · 28 d1.18 (0.70–1.99)
Mortality, ARDS from noninfectious causes (subgroup)Metabolic syndrome vs Control · 90 d1.26 (0.77–2.06)
  • Mortality, ARDS from sepsis or pneumonia (subgroup): interaction p = 0.04 (28 d) and p = 0.02 (90 d)
  • Mortality, ARDS from noninfectious causes (subgroup): interaction p = 0.04 (28 d) and p = 0.02 (90 d)

Adjusted 28-day mortality by number of metabolic criteria

Reduction with each additional metabolic criterion from 0 to 3
18%, 22%, and 40%

Original publication

The Relationship Between Metabolic Syndrome and Mortality Among Patients With Acute Respiratory Distress Syndrome in Acute Respiratory Distress Syndrome Network and Prevention and Early Treatment of Acute Lung Injury Network Trials*. Crit Care Med. Published 1 November 2023. doi:10.1097/ccm.0000000000006092

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