Clinicopathologic Characteristics Influencing Overall Survival of Patients With Early- Versus Average-Onset Colorectal Cancer at a Tertiary Care Center in Indonesia.
Susanna Hilda Hutajulu, Daniel Howdon, Yasjudan Rastrama Putra, Susanti Susanti, Didik Setyo Heriyanto, Naomi Yoshuantari, Adeodatus Yuda Handaya, Bambang Purwanto Utomo, Sri Retna Dwidanarti, Johan Kurnianda, Aru Wisaksono Sudoyo, Mohammad Ilyas, Matthew John Allsop
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Abstract
Purpose: There has been a global increase in early-onset colorectal cancer (EOCRC), yet there has been very limited exploration of its impact in Indonesia. This study aimed to determine the clinicopathologic characteristics and the overall survival (OS) of EOCRC compared with those of average-onset colorectal cancer (AOCRC).
Methods: Medical records were retrospectively reviewed from all patients presenting with colorectal cancer (CRC) at Dr Sardjito General Hospital (Yogyakarta, Indonesia) between 2016 and 2019. Sociodemographic, clinicopathologic, and treatment variables were extracted. t Tests were used to compare characteristics of EOCRC and AOCRC patient groups. The Cox proportional hazards regression model was used to analyze age and other potential prognostic factors.
Results: The total population (N = 1,276) comprised EOCRC (n = 149; 11.7%) and AOCRC (n = 1,127; 88.3%) patients. EOCRC patients were more likely to have a higher education level, be single, have out-of-pocket insurance, be underweight, and have signet ring histology (all P values <.05), compared with AOCRC patients. EOCRC and AOCRC groups had a comparable estimated 5-year OS of 34.2% and 36.9%, respectively. In multivariable analyses, performance status (Eastern Cooperative Oncology Group), hemoglobin level, cancer stage, and treatment intention were independent prognostic factors for OS (all P values <.05).
Conclusion: To our knowledge, this first major study of EOCRC in Indonesia highlights its role in the overall burden of CRC and its connection with social determinants of health. Patients with EOCRC are more commonly underweight and generally have a higher proportion of signet ring histology than AOCRC, yet OS in both groups is similar. Future research is required to identify risk factors to inform the content and focus of public health education activities, alongside delineating the biology and causes of early and average onset of the disease.
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