Title of article :
Risk Factors Affecting Survival Time of Breast Cancer Patients: The Case of Southwest Ethiopia
Author/Authors :
Habtamu Bacha,Reta Department of Statistics - College of Natural Sciences - Jimma University, Jimma, Ethiopia , Negash Jabir, Yasin Department of Statistics - College of Natural Sciences - Jimma University, Jimma, Ethiopia , Girma Asebot, Anberbir Department of Obstetrics and Gynecology - Institute of Health Sciences - Jimma University, Jimma, Ethiopia , Debu Liga, Abebe Department of Statistics - College of Natural and Computational Sciences - Wolkite University, Wolkite, Ethiopia
Abstract :
Background: Breast cancer is one of the non-communicable diseases and the main origin of the
loss of life in the world. In Ethiopia, breast cancer is the second common cancer health problem for
women. The main objective of this study was to identify the potential risk factors affecting the
survival time of breast cancer patients in Southwest Ethiopia.
Study design: A retrospective study design.
Methods: The data were taken from the patients’ medical records that registered from January 1,
2015, to January 31, 2020. A retrospective study design was used in this study. Different shared
frailty survival models were employed to analyze the dataset.
Results: Out of 642 recorded breast cancer patients, 447(69.6%) cases died during the study
period, and 195 (30.4%) patients lost follow-up for unknown reasons. The median time to death for
breast cancer patients was 10 months, and hospitals were used as a cluster effect. The result
revealed that women with no smoking habit had about 3.35 times higher survival time than patients
who had a smoking habit, and as breast cancer patients age increased, the survival time decreased
by 0.99. Moreover, breast cancer patients in rural areas had about 0.14 times lower survival time,
compared to breast cancer patients who were urban residents.
Conclusions: Age, place of residence, treatment taken, stage, histologic grade, tumor size, oral
contraceptives, and smoking habits led to a shorter survival time. To reduce the burden of breast
cancer, awareness should be given to the community.
Keywords :
Acceleration Factor , Breast Cancer , Ethiopia , Parametric Shared Frailty Models
Journal title :
Journal of Research in Health Sciences(JRHS)