A Comparison of Survival of Oral Cancer Patients after Diagnosis in Roi-Et Hospital, Roi-Et Province

Abstract

Oral cancer (OC) is the 16th most common cancer globally by both incidence and mortality rates and a significant cause of cancer-related death among men in South Asia, Southeast Asia, and the Western Pacific. This study aimed to compare survival rates of OC patients after diagnosis who received treatment at Roi Et Hospital. This analytical retrospective cohort study utilized data from the Roi Et hospital-based cancer registry. The study population comprised 433 newly diagnosed oral cancer patients who were diagnosed by physicians and received treatment at Roi Et Hospital, Roi Et Province, between January 1, 2015, and December 31, 2021. Survival rates were analyzed using the Kaplan-Meier method, and the Log-rank test was used to compare survival rates between groups. Result: Females exhibited a higher median survival than males (2.4 years vs. 0.9 years). Patients with lip cancer had the longest median survival (6.2 years). Early-stage disease (Stage 1: 7.6 years; Stage 2: 6.0 years) was associated with markedly better survival compared to advanced-stage disease (Stage 3: 1.0 year; Stage 4: 0.7 years). Well-differentiated tumors showed a higher median survival (3.1 years) compared to other pathological grades. Patients without metastasis had a longer median survival than those with metastasis (1.9: 0.4 years). In sum up, a comparison of Survival of Oral Cancer Patients after Diagnosis in Roi-Et Hospital, Roi-Et Province found that Sex, Topography, Stage, Histology grading, Metastasis were associated with oral cancer patient survival. However, there may be additional factors that influence survival outcomes and warrant further investigation.