Objective To analyze the impact of body mass index (BMI) on hospitalization process of colorectal cancer patients served by West China Hospital, based on the current version of Database from Colorectal Cancer (DACCA). Methods The data of DACCA was updated on April 30, 2021. All data items included BMI, visiting data, admission date, operation date, discharging date, pre-hospitalization time, pre-operation time, post-operation time, total hospital stay, and management process. Results After scanning, 5 564 data rows were analyzed, from 2007 to 2021. The range of BMI was 11.02–39.67 kg/m2, the average of BMI was (22.86±3.28) kg/m2, and the BMI increased with year \begin{document}$ (\widehat{y} $\end{document}=0.058x–94.23, R2=0.005, P<0.001). The results of BMI characteristic analysis showed that BMI was not statistically significant related to the pre-hospitalization time, the pre-operation time, and the total length of hospital stay (P>0.05). However, the BMI would affect patients’ postoperative hospital stay and process management (P<0.05). Among them,obese group had shorter postoperative hospital stay than other groups (P=0.014). Additionally, there was significant difference in management process among colorectal cancer patients with different BMI (χ2=26.84, P=0.001). In process management, “ERAS” management accounted for the largest proportion (66.37%), but for each process management category, lean people were more likely to choose “enhanced” management process (11.08%), and obese people were more likely to choose “individual” process management (6.05%). Conclusions The analysis results reflect that the BMI of colorectal cancer patients have an increasing trend year by year. BMI has no clear correlation with patients’ waiting time before admission, pre-operative time, and total hospital stay. Therefore, from the perspective of hospitalization management, the hospitalization operation ability of patients with colorectal cancer was not affected by BMI. The BMI of patients will affect the postoperative hospital stay and process management. The obese people have a shorter postoperative hospital stay and are more likely to choose non-process management.
Objective To analyze the influence of the age of colorectal cancer patients served by West China Hospital as a regional center on hospitalization process in the current version of Database from Colorectal Cancer (DACCA). Methods The DACCA version was updated on January 5, 2022. All data items analyzed included age, date of admission, date of operation, date of discharge, pre-operation time, post-operation time, total hospital stay and management process. Data were assigned to three groups according to age with ≤45, 46–64 and ≥65 years old. Results After scanning, 8 013 data rows were obtained, from 2005 to 2022. The patients’ ages ranged from 14 to 104 years old, and were (58.01±13.52) years old in average. The results showed that the relationship between age and post-operative time was not statistically related (P>0.05). However, the pre-operative time (P=0.001) and total hospital stay time (P=0.005) were positively correlated with the age of colorectal cancer patients. The pre-operation time was longer in the older-aged group (P=0.021). Youth group had longer total hospital stay than other groups (P=0.028). Additionally, there was significant difference in the management process of colorectal cancer patients of different age groups (χ2=32.824, P＜0.05), but in terms of each process management classification, patients in different age groups had the same choice tendency as the overall choice, with “routine” management accounting for the largest proportion. “ERAS (enhanced recovery after surgery)” management was in the second place. Conclusions This study showed that the age group of patients with colorectal cancer has a certain influence on the length of hospital stay. Older patients have longer pre-operation time, but the effect of age on the total length of hospital stay still remains to be discussed. The composition of clinical management process varies among different age groups, and the elderly patients received the highest proportion of “ERAS” management process.