Nationwide epidemiological survey of acute pancreatitis in Japan, 2021: the impact of the COVID-19 pandemic and revised clinical guidelines.

ABSTRACT:

Objectives

This study aimed to clarify the current clinico-epidemiological characteristics of acute pancreatitis (AP) in Japan.

Methods

We conducted a two-stage nationwide survey of patients with AP treated at selected hospitals in 2021, during the COVID-19 pandemic. The first stage estimated the total number of AP patients, while the second collected detailed clinical data.

Results

The estimated number of AP patients requiring hospitalization was 61,080, with an overall incidence rate of 49 per 100,000 persons, decreasing from 78,450 in 2016. Detailed clinical data were obtained for 4,375 patients, including 1,362 (31.1%) classified as severe. The male-to-female ratio was 2.0, with mean ages at onset of 60.1 years for males and 65.4 years for females. The three major

SUBMITTER: Tanaka Y 

PROVIDER: S-EPMC12549737 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature