Acute cardiac care & resuscitationResearch article

Association Between Hospital Tiers and Cardiogenic Shock Mortality: Mitigating the Transfer Penalty Through a Regionalized Hub-and-Spoke Model

Circ Heart FailPublished

  • Generalized structural equation modeling analysis of the National Inpatient Sample
  • 2016-2022
  • 5 hierarchical hospital tiers
  • latent Acute Severity construct

Authors' conclusion

Higher hospital cardiac capability is independently associated with lower mortality among patients with cardiogenic shock. Advanced centers are associated with mitigation of transfer-associated risk, supporting regionalized hub-and-spoke systems with early referral to high-capability centers.

Study context

Population
Cardiogenic shock hospitalizations in the National Inpatient Sample
Participants
1,177,180 estimated cardiogenic shock hospitalizations
Comparison
the relationship between hospital tier and mortality

Main finding

As reported in the abstract

Crude mortality

Further findings

Mortality by hospital tier, adjusted

ComparisonOR (95% CI)
tier 2 · After adjustment0.43 (0.38–0.48)
tier 3 · After adjustment0.37 (0.32–0.43)
tier 4 · After adjustment0.34 (0.30–0.38)
tier 5 · After adjustment0.36 (0.31–0.41)

Mortality by transfer-in status

ComparisonOR (95% CI)
transfer-in status · associated with increased mortality1.36 (1.30–1.43)
  • Mortality by hospital tier, adjusted: a higher hospital tier was independently associated with lower mortality

Mortality by transfer-in status

association was attenuated at cardiac surgical and transplant/left ventricular assist device (LVAD) centers

Distribution of hospitalizations

most occurred at cardiac surgical and transplant/LVAD centers

Original publication

Association Between Hospital Tiers and Cardiogenic Shock Mortality: Mitigating the Transfer Penalty Through a Regionalized Hub-and-Spoke Model. Circ Heart Fail. Published 15 September 2026. doi:10.1161/circheartfailure.126.014546

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