ICU sedation, delirium & recovery

Nurse-to-Nurse Familiarity and Mortality in the Critically Ill: A Multicenter Observational Study

Am J Respir Crit Care MedPublished Retrospective observational study

Main finding · Shift with at least one inpatient deathResult — go to the resultRelative risk 0.90 95% CI 0.82–0.98

Authors' conclusion

Shifts with low nurse-to-nurse familiarity were associated with an increased risk of patient deaths.

Study context

Population
Patients admitted to 8 adult academic ICUs, 2011–20163,311 (8%) died
Participants
43,479 patients
Exposure
Higher vs lower nurse-to-nurse familiarity per shift
Outcome
Shift with ≥1 inpatient death, excluding deaths after a decision to forego life-sustaining therapy
Methodological detailsmulticentre, 8 adult academic ICUs
  • Multicentre
  • 8 adult academic ICUs

Main finding

Shift with at least one inpatient death

Relative risk

0.90

95% CI 0.82–0.98

P = 0.012

Nurse-to-nurse familiarity increased in the shift
relative risk 0.90 (95% CI 0.82–0.98); P = 0.012

Per 10 shifts, as printed

As reported in the abstract

Observational data: associations, not effects.

Further findings

Low familiarity combined with suboptimal patient-to-nurse (>2.5) and patient-to-assistant nurse (>4) ratios

RR (95% CI)P value
Low familiarity + suboptimal ratios1.84 (1.15–2.96)P < 0.001

Original publication

Nurse-to-Nurse Familiarity and Mortality in the Critically Ill: A Multicenter Observational Study. Am J Respir Crit Care Med. Published 15 April 2023. doi:10.1164/rccm.202204-0696oc

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