Browsing by Author "Folorunso, S. A."

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Application of bayesian non parametric estimation on cervical cancer: A case study of University College Hospital, Nigeria.
(2021) Onatunji, A. P.; Folorunso, S. A.; Oluwasola, T. A. O.; Adesina, O. A.; Uthman, K. T.
Cervical cancer is the third most common malignancy in women worldwide, and in developing countries, it remains a leading cause of cancer-related death for women. The disease is a significant illness in women in Sub Sahara Africa Countries like Nigeria. Cervical cancer ranks as the 2nd most prevalent cancer among women in Nigeria and the most prevalent cancer among ages 15 – 44 years. Some of the identified risk factors of this disease have been wrongly captured in some statistical models. This consequentially makes the result of the analysis wrongly interpreted and concluded when the risk factors are continuous. This study is aimed at examining the Bayesian estimation of cervical cancer on a woman's age and survival period of the disease using the application of non-parametric techniques. The study is a means to apply Bayesian Nonparametric estimation on cervical cancer. The study findings reveal that women between ages 40 - 60 years have a significant increase in the probability of mortality from cervical cancer when the survival period is between stage I-IV. Also, there is an increase in woman's age and survival period of living with the disease which is significantly likely to decrease the mortality from cervical cancer in the study area.
Estimating admission lifetime and survival for gynaecological cancers at the University College Hospital, Ibadan using Cox regression model.
(2021) Folorunso, S. A.; Oluwasola, T. A. O.; Chukwu, A. U.
Objective: To estimate the admission lifetime of gynaecological cancer patients in the University College Hospital (UCH), Ibadan and its implication to management and overall outcome using the Cox regression model. Methods: Descriptive and cox regression model in survival analysis were used to analyze data from 823 patients with gynecological malignancies who were treated at the UCH, Ibadan between January 1 1995 and December 31, 2014. The outcome variable for this study was the admission life-time (in days). The variables collected were limited to the age of patients, types of cancer and patients’ status. The study employed some model criteria such as p-value, log rank test, Gehan-Wilcoxon test, Concordance index, R-square, likelihood ratio test, Wald test and score test to check for the efficiency of the results. Results: Of the 823 cases reviewed, 611(74.2%) were right-censored. Cervical cancer had the highest number of patients admitted with 53.5% and was commonest among patients aged 60 years and above (30.1%) while mortality was highest among patients with ovarian cancer. Ovarian cancer and age above 65 years were the only two factors that significantly affected patient’s survival experiences during their admission at the hospital. Conclusion: Patients younger than 60 years and with other gynaecologic cancers, except ovarian, had better chances of survival over a period of 6 months as at the time of admission into the UCH, Ibadan.