ICU sedation, delirium & recovery

Sex differences in advance directives and their clinical translation among critically ill adults: results from the ADVISE study

Ann Intensive CarePublished Retrospective cohort study

Authors' conclusion

This study revealed sex disparities in the content and translation of ADs between females and males admitted to ICUs. Females' ADs were more frequently violated, indicating a potential sex bias in the interpretation and translation of ADs in critical care.

Study context

Population
Critically ill adults treated >48 h in two interdisciplinary tertiary Swiss intensive care units (ICUs)313 with advance directives (ADs)
Participants
5,242 adults
Exposure
Females vs males with ADs
  • Femalesn = 1,813
  • Malesn = 3,429reference
Outcome
Frequency of ADs
Methodological detailstwo-centre, tertiary ICUs
  • Two-centre
  • Tertiary ICUs

Main finding

As reported in the abstract

P = 0.054

Overall ADs
313 (6.0%)

Observational data: associations, not effects.

Secondary outcomes

Single, divorced, or widowed (patients with ADs)

P = 0.001

Acute stroke as main diagnosis (patients with ADs)

P = 0.001

Refusal of CPR in ADs

P = 0.002

AD violated

P < 0.001

AD violation by unwanted treatments

P < 0.001

AD violation by undesired ICU admission

P = 0.002

Refusal of cardiopulmonary resuscitation (CPR) in ADs

In multivariable analyses, female sex associated with refusing CPR independent of relationship status

Treatment adaptations in ICU, in-hospital outcomes, discharge destinations

Did not differ between sexes

Original publication

Sex differences in advance directives and their clinical translation among critically ill adults: results from the ADVISE study. Ann Intensive Care. Published 14 July 2025. doi:10.1186/s13613-025-01518-z

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