Respiratory failure & ventilation

Association between early administration of mucoactive agents and in-hospital mortality in patients with pneumonia requiring mechanical ventilation: a nationwide cohort study

J Intensive CarePublished Retrospective cohort study

Main findingResult — go to the resultRisk difference - 2.3% 95% CI - 4.4% to - 0.3%

Authors' conclusion

In patients with ventilated pneumonia, early administration of mucoactive agents was associated with lower in-hospital mortality.

Study context

Population
Adults with primary diagnosis of pneumonia requiring invasive mechanical ventilation within 2 days of admission, ventilated ≥ 2 days, Japanese Diagnosis Procedure Combination database, April 2012–March 2023
Participants
10,942 adults
Exposure
Early mucoactive agents vs none
  • Mucoactive agentn = 2,246
  • Controln = 8,696reference
Outcome
In-hospital mortality
Methodological detailsnationwide inpatient database, propensity score overlap weighting
  • Nationwide inpatient database
  • Propensity score overlap weighting

Main finding

As reported in the abstract

Risk difference

- 2.3%

95% CI - 4.4% to - 0.3%

P = 0.028

By group

Observational data: associations, not effects.

Secondary outcomes

Ventilator-free days at 28 days

Did not significantly differ between groups

Original publication

Association between early administration of mucoactive agents and in-hospital mortality in patients with pneumonia requiring mechanical ventilation: a nationwide cohort study. J Intensive Care. Published 16 October 2025. doi:10.1186/s40560-025-00826-7

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