Abstract 11225: Trends in Atrial Fibrillation Hospitalizations From 1996 to 2010 Using Data From National Hospital Discharge Survey
Aims: Atrial fibrillation (AF) is the most common arrhythmia encountered in clinical practice. Patients presenting with AF are often admitted to the hospital for rhythm or rate control, symptom management, and/or anticoagulation. We investigated temporal trends in AF hospitalizations in the United States from 1996 to 2010.
Methods: Data were obtained from the National Hospital Discharge Survey (NHDS), a national probability sample survey of discharges conducted annually by the National Center for Health Statistics. Because of the survey design, sampling weights are applied to the raw NHDS data to produce national estimates. Hospitalizations with a primary diagnosis of AF were identified using ICD-9 code. Weighted least squares regression was used to test for linear trends in the number of AF admissions, length of stay, and inpatient mortality.
Results: AF admissions increased from approximately 286,000 in 1996 to about 410,000 in 2010 with a significant linear trend (β=9460 additional admissions per year, p<0.001). Overall, mean length of stay for AF admissions was 3.75 days, and this remained relatively stable over time (β=0.002 days, p=0.884; see Figure). Inpatient mortality was 0.96% and also remained stable over time (β=0.031%, p=0.181; see Figure).
Conclusion: Our data demonstrate an increase in the number of AF admissions but constant length of stay and mortality over time. Opportunities to decrease the cost of inpatient AF management should therefore target reducing both the number of admissions as well as the length of stay.
Author Disclosures: M.U. Nisar: None. M.S. Sharbaugh: None. F.W. Thoma: None. M.B. Munir: None. A.S. Kamran: None. A.D. Althouse: None. S. Saba: Other; Modest; Modest; Medtronic, St. Jude Medical and Boston Scientific..
- © 2016 by American Heart Association, Inc.