Survival Analysis on Breast Cancer Incidences in Ikeja, Lagos Nigeria Using Kaplan Meier and Cox Proportional Hazard Techniques
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Page Numbers:
657-668
Digital Object Identifier:
10.58578/mikailalsys.v3i2.5365
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Authors:
Ajao Olutunde M.1, Afariogun David A.2, Ayeni Elizabeth O.3, Egbe Kehinde O.4 
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Abstract
This study investigates breast cancer survival outcomes in relation to treatment types, using retrospective data sourced from the Oncology Department at Lagos State University Teaching Hospital (LASUTH). Employing survival analysis techniques—specifically the Kaplan-Meier method for estimating survival probabilities and the Cox Proportional Hazards model to examine the influence of demographic factors—the study measured survival time from diagnosis to either death or the last known follow-up. The event of interest was the patient’s vital status. Results indicated that while breast cancer affects all genders, females are nearly twice as likely to be diagnosed as males. Age was also a significant determinant of survival, with older patients exhibiting a higher risk of mortality, as shown by increasing hazard ratios. These findings highlight the importance of early detection, particularly in younger individuals, as a critical strategy to enhance survival prospects.
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Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
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