Acute cardiac care & resuscitation

The association of off-hour vs. on-hour intensive care unit admission time with mortality in patients with cardiogenic shock: a retrospective multi-centre analysis

Eur Heart J Acute Cardiovasc CarePublished Retrospective cohort study

Main finding · 30-day mortalityResult — go to the resultHazard ratio 1.17 CI 1.03–1.33

Authors' conclusion

Our study showed an increased mortality in patients with cardiogenic shock admitted during off-hours, especially in those with a milder onset of disease.

Study context

Population
Patients with cardiogenic shock admitted to ICU
Participants
1,720 patients
Exposure
Off-hour vs on-hour ICU admission
  • Off-hoursn = 666
Outcome
Mortality
Follow-up
30 days
Methodological detailsmulticentre, 2 German university hospitals
  • Multicentre
  • 2 German university hospitals

Main finding

30-day mortality

Hazard ratio

1.17

CI 1.03–1.33

P = 0.017

By group

Off-hours vs On-hours
HR 1.17 (CI 1.03–1.33); P = 0.017

As reported in the abstract

Remained significant after propensity score matching
P = 0.023

Observational data: associations, not effects.

Further findings

OutcomeHR (CI)P value
30-day mortality by subgroup — Off-hours vs On-hours · without VA-ECMO1.17 (1.00–1.36)P = 0.049
30-day mortality by subgroup — Off-hours vs On-hours · without acute MI1.27 (1.02–1.56)P = 0.029
30-day mortality by subgroup — Off-hours vs On-hours · SCAI stage A and B2.23 (1.08–4.57)P = 0.025
30-day mortality by subgroup — No higher mortality at off-hour admission: SCAI stage D and E
P = 0.088
30-day mortality by subgroup — No higher mortality at off-hour admission: SCAI stage C
P = 0.548
30-day mortality by subgroup — No higher mortality at off-hour admission: requiring CPR
P = 0.114

Original publication

The association of off-hour vs. on-hour intensive care unit admission time with mortality in patients with cardiogenic shock: a retrospective multi-centre analysis. Eur Heart J Acute Cardiovasc Care. Published 2 February 2024. doi:10.1093/ehjacc/zuae012

Summarised from the published abstract; every number is checked against it

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