Epidemiology of Female Breast Cancer in Ogun State: Intra- and Inter-regional Discuss

Abstract

This study determined the prevalence of breast cancer in relation to age, reproductive status and population of Ogun State. Out of a total of 816 human cancer presentations observed between 2012 and 2016, 334 (40.9%) female breast cancer (with age range= 23 to 95 years and mean age= 50.3 years) were retrospectively reviewed. Result revealed five breast cancer types: Invasive ductal carcinoma (IDC), ductal carcinoma in situ (DCIS), Paget cell disease, medullary carcinoma and mucinous carcinoma. Invasive ductal carcinoma was the predominant breast cancer type (94.9%) while year 2016 had the highest number of breast cancer presentations (47%) at p<0.001). Result also showed that age range of 41-50 years and 61-70 years had the highest prevalence and incidence of breast cancer, respectively (p<0.001). Reproductive age (23-45 years) had the highest frequency of invasive ductal carcinoma and Paget cell disease when compared with other age groups (p<0.001). Result also showed interesting differences in prevalence of breast cancer types in Ogun State compared with other regions. The result revealed that IDC, DCIS, Medullary carcinoma, Mucinous carcinoma and Paget's cell disease are more prevalent in South-West, South-East, North-West, South-East, North-Central regions, respectively. In conclusion, our findings suggest that breast cancer occurrence is greatly influence by age, reproductive status and location.