Association Between Platelet-Albumin-Bilirubin Grade and the 30-Day Mortality in Patients with Acute Respiratory Distress Syndrome: Evidence from the MIMIC-IV Database.

BACKGROUND

The platelet-albumin-bilirubin (PALBI) grade is a comprehensive assessment index of liver function. Liver dysfunction is a key determinant of the pathogenesis and resolution of acute respiratory distress syndrome (ARDS), which affects the prognosis of patients.

AIMS

To evaluate the association of PALBI grade with the risk of 30-day mortality in patients with ARDS.

STUDY DESIGN

Retrospective cohort study.

METHODS

Univariate and multivariate Cox proportional hazards models were used to evaluate the association between PALBI grade and the 30-day mortality in patients with ARDS; results were described as hazard ratios (HRs) and 95% confidence intervals (CIs). This association was further assessed by subgroup analyses stratified based on age, sex, and complications.

RESULTS

A total of 2,841 patients with ARDS were included, of whom, 703 (24.74%) died within 30 days. After adjusting all covariates, a higher PALBI grade was associated with higher odds of 30-day mortality (HR: 1.55, 95% CI: 1.05-2.29). High PALBI grade was related to higher odds of 30-day mortality in patients with ARDS aged ≥ 65 years (HR: 2.30, 95% CI: 1.06-5.01), males (HR: 2.10, 95% CI: 1.29-3.44), without sepsis (HR: 1.71, 95% CI: 1.11-2.64), without pneumonia (HR: 1.86, 95% CI: 1.19-2.91), and without any history of chronic obstructive pulmonary disease (HR: 1.93, 95% CI: 1.28-2.91).

CONCLUSION

The PALBI grade was positively associated with 30-day mortality in patients with ARDS. The present study provides a reference for risk stratification management of patients with ARDS to improve short-term prognosis.