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AHRQ Research Studies
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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
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1 to 2 of 2 Research Studies DisplayedMetersky ML, Wang Y, Klompas M
Temporal trends in postoperative and ventilator-associated pneumonia in the United States.
The purpose of this retrospective cohort study was to assess change in rates of postoperative pneumonia and ventilator-associated pneumonia among patients hospitalized in the United States during 2009-2019. The study found that among 58,618 patients undergoing major surgical procedures between 2009 and 2019, the observed rate of postoperative pneumonia from 2009-2011 was 1.9% and decreased to 1.3% during 2017-2019. The adjusted annual risk each year, compared to the prior year, was 0.94. Among 4,007 patients hospitalized for any of the 4 conditions at risk for ventilator-associated pneumonia during 2009-2019, the researchers did not detect a significant change in observed or adjusted rates. Observed rates clustered around 10%, and adjusted annual risk compared to the prior year was 0.99.
AHRQ-funded; 290201800005C.
Citation: Metersky ML, Wang Y, Klompas M .
Temporal trends in postoperative and ventilator-associated pneumonia in the United States.
Infect Control Hosp Epidemiol 2023 Aug; 44(8):1247-54. doi: 10.1017/ice.2022.264..
Keywords: Pneumonia, Respiratory Conditions, Healthcare-Associated Infections (HAIs), Healthcare Cost and Utilization Project (HCUP)
Deshpande A, Richter SS, Haessler S
De-escalation of empiric antibiotics following negative cultures in hospitalized patients with pneumonia: rates and outcomes.
This study assessed antibiotic de-escalation practices across hospitals and their associations with outcomes in hospitalized patients diagnosed with pneumonia with negative cultures. The authors included 14,170 adults admitted with pneumonia in 2010-2015 to 164 US hospitals if they had negative blood and/or respiratory cultures and received both anti-MRSA and antipseudomonal agents other than quinolones. If empiric drugs were stopped on day 4 while continuing another antibiotic it was defined at de-escalation. Patients were propensity adjusted for de-escalation and compared on in-hospital 14-day mortality, late deterioration with ICU transfer, length-of-stay (LOS) and costs. Thirteen percent (1924 patients) had both initial empiric drugs stopped by hospital day 4. De-escalation rates at hospitals ranged from 2-35% and the established rate quartiles were not significantly associated with outcomes. Even at hospitals in the top quartile of de-escalation, the de-escalation rates were lower than 50%.
AHRQ-funded; HS025026; HS024277.
Citation: Deshpande A, Richter SS, Haessler S .
De-escalation of empiric antibiotics following negative cultures in hospitalized patients with pneumonia: rates and outcomes.
Clin Infect Dis 2021 Apr 26;72(8):1314-22. doi: 10.1093/cid/ciaa212..
Keywords: Antimicrobial Stewardship, Antibiotics, Medication, Pneumonia, Respiratory Conditions, Methicillin-Resistant Staphylococcus aureus (MRSA), Healthcare-Associated Infections (HAIs), Inpatient Care