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ARDS Prevalence and Survival Trends in the United States; 2008-2012 FREE TO VIEW

Bhupinder Natt, MBBS; Hem Desai, MBBS; Nimal Singh, MBBS; Chithra Poongkunran, MD; Christian Bime, MD
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University of Arizona Tucson AZ, Tucson, AZ

Chest. 2015;148(4_MeetingAbstracts):177A. doi:10.1378/chest.2278583
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SESSION TYPE: Original Investigation Poster

PRESENTED ON: Wednesday, October 28, 2015 at 01:30 PM - 02:30 PM

PURPOSE: To study the trends of ARDS related hospital discharges and associated mortality rates in the United States.

METHODS: We performed retrospective analysis using Healthcare Cost and Utilization project-National Inpatient Sample (HCUP-NIS) hospital discharge data from the year 2008 to 2012. Sample selection was based on International Classification of Diseases, Ninth Revision (ICD-9) codes. We captured the ARDS patients and subset of ARDS patients with severe sepsis and septic shock (ARDS-Sepsis group) using following codes: 518.82, 518.51, 518.52, 518.53, 518.81, 518.84, 518.7, 518.4, 861.20, 785.52, 995.92 and procedures codes: 96.70, 96.71, and 96.72. We studied yearly data of ARDS related hospital discharges and mortality trends from years 2008 till 2012. All the reported analyses are national estimates calculated using the survey weights.

RESULTS: There was an increasing trend of ARDS related hospital discharges as follows: 1.48% in 2008, 1.56% in 2009, 1.69% in 2010, 1.82% in 2011 and 2.03% in 2012. Discharges for ARDS associated with sepsis or septic shock followed a similar trend; 0.39% in 2008, 0.43% in 2009. 0.47% in 2010, 0.52% in 2011 and 0.55% in 2012. There was a decreasing trend in ARDS associated mortality; 33.82% in 2008, 33.01% in 2009, 31.32% in 2010, 30.94% in 2011 and 29.4% in 2012. Mortality from ARDS associated with sepsis also had a similar decreasing trend over these 5 years; 51.21% in 2008, 49.01% in 2009, 47.28% in 2010, 45.72% in 2011 and 44.69% in 2012.

CONCLUSIONS: From 2008 to 2012, there was an increasing trend of ARDS related hospital discharges in the United States. There was also a decreasing trend of ARDS associated mortality during the same period.

CLINICAL IMPLICATIONS: Even though the reasons remain unclear and probably multifactorial, mortality rates in ARDS seem to have consistently improved from 2008 till 2012.

DISCLOSURE: The following authors have nothing to disclose: Bhupinder Natt, Hem Desai, Nimal Singh, Chithra Poongkunran, Christian Bime

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