Analysis of factors affecting the length of hospital stay in patients with colorectal cancer (C18.0-C18.9) using medical records

Key Points

• The research aims to identify factors affecting the length of hospital stay for colorectal cancer patients.
• Analyzed medical records of 3,305 colorectal cancer patients using national health insurance data from 2022-2023.
• Independent variables included sociodemographic characteristics, medical institution characteristics, and healthcare usage.
• Applied statistical analyses: T-tests, ANOVA, and linear regression using SAS 9.4.
• Average hospital stay was 8.70 days in 2022 and 7.79 days in 2023.
• Key factors affecting length of stay included hospital location (Chungcheong region), hospital size (300-499 beds), and admission route (emergency).
• Number of secondary diagnoses, surgical procedures (main and additional), and discharge outcome (transfer/death) significantly impacted length of stay (p<0.001).
• Location and gender had no significant effect on hospital stay duration.

Abstract