Trends of Hospitalization in Acute Pancreatitis in Patients in the United States from 2001-2014

ABSTRACT Background & Purpose The prevalence of acute pancreatitis(AP) has increased over time and is one of the most important gastrointestinal causes of frequent admissions to hospital in the United States. The cost burden of AP has been steadily increasing. The primary objective of our study was to analyze patient demographics, cost burden, mortality and length of stay associated with AP hospital admissions. Methods Nationwide inpatient sample (NIS) database was used to identify AP admissions in all patients from ≥18 years of age from 2001 to 2014 using ICD-9-CM code 577.0 as the principal discharge diagnosis Results The number of hospitalizations increased from 215,238 in 2001 to 279,145 in 2014. Inhospital mortality decreased from 1.74% in 2001 to 0.66% in 2014. Mean length of hospital stay has decreased from 6.1 days to 4.6 days during the same period, but the mean hospital charges increased from $19,303 in 2001 to $35,728 in 2014. The proportion of males to females with acute pancreatitis is slowly trending up from 2001 to 2014. Conclusion The number of hospitalizations due to acute pancreatitis has been steadily increasing, and further research needs to be done on finding out the reasons for increased causes of hospitalization and ways to decrease the cost burden on patients and hospitals.