Impact of prior outpatient antibiotic use on mortality for community acquired pneumonia: a retrospective cohort study
2008

Impact of Outpatient Antibiotic Use on Pneumonia Mortality

Sample size: 733 publication 10 minutes Evidence: moderate

Author Information

Author(s): Mortensen Eric M, Restrepo Marcos I, Pugh Jacqueline A, Anzueto Antonio

Primary Institution: University of Texas Health Science Center at San Antonio

Hypothesis

Is prior outpatient antibiotic use associated with increased 30-day mortality for patients hospitalized with pneumonia?

Conclusion

Prior outpatient antibiotic use is not significantly associated with 30-day mortality for patients hospitalized with pneumonia.

Supporting Evidence

  • Mortality was 8.1% at 30-days.
  • 17% of subjects received antibiotics within 30-days of presentation.
  • Unadjusted mortality for those who had received prior antibiotics was 7.0% vs. 8.3% for those who had not.

Takeaway

This study found that taking antibiotics before being hospitalized for pneumonia doesn't seem to make you more likely to die from it.

Methodology

A retrospective cohort study conducted at two tertiary teaching hospitals analyzing 30-day mortality in patients with pneumonia.

Potential Biases

The sample was predominantly male due to the inclusion of a VA hospital, which may affect generalizability.

Limitations

The study is retrospective and may not account for all confounding factors.

Participant Demographics

Mean age was 59 years, 78% male, 84% admitted through the emergency department.

Statistical Information

P-Value

0.6

Confidence Interval

0.5–2.1

Statistical Significance

p = 0.6

Digital Object Identifier (DOI)

10.1186/1756-0500-1-120

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