Trends in gastrointestinal disease hospitalizations and outcomes during the first year of the coronavirus pandemic

BACKGROUND The impact of the coronavirus on hospitalizations for gastrointestinal(GI)disease,particularly at a population level is understudied.AIM To investigate trends in hospitalizations,inpatient endoscopy resource utilization,and outcomes during the first year of the coronavirus pandemic and subsequent lockdowns.METHODS Using the California State Inpatient Database for 2018-2020,we explored year-toyear and 2020 month-to-month trends in hospitalizations,length of stay,and inpatient mortality(all-cause&viral pneumonia-specific)for common inpatient GI diagnoses including acute pancreatitis,diverticulitis,cholelithiasis,noninfectious gastroenteritis,upper and lower GI bleeding(LGIB),Clostridium difficile,viral gastroenteritis,inflammatory bowel disease,and acute cholangitis.RESULTS Disease-specific hospitalizations decreased for all included conditions except nonvariceal upper GI bleeding(NVUGIB),LGIB,and ulcerative colitis(UC)(ptrend<0.0001).Allcause inpatient mortality was higher in 2020 vs 2019,for acute pancreatitis(P=0.029),diverticulitis(P=0.04),NVUGIB(P=0.003),and Crohn’s disease(P=0.004).In 2020,hospitalization rates were lowest in April,November,and December.There was no significant corresponding increase in inpatient mortality except in UC(ptrend=0.048).Viral pneumonia and viral pneumonia complicated by respiratory failure increased(P<0.001)among GI hospitalizations.Endoscopy utilization within 24 h of admission was unchanged for GI emergencies except NVUGIB(P<0.001).CONCLUSION Our findings suggest that hospitalization rates for common GI conditions significantly declined in California during the COVID pandemic,particularly in April,November and December 2020.Allcause mortality was significantly higher among acute pancreatitis,diverticulitis,NVUGIB,and Crohn’s disease hospitalizations.Emergency endoscopy rates were mostly comparable between 2020 and 2019.