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Statistical Analysis of Health Insurance and Cash and Carry Systems in Cape Coast Teaching Hospital of Ghana
Science Journal of Applied Mathematics and Statistics
Volume 7, Issue 3, June 2019, Pages: 36-44
Received: Jul. 10, 2019; Accepted: Aug. 14, 2019; Published: Aug. 30, 2019
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Bridget Sena Borbor, Department of Mathematical Sciences, University of Mines and Technology, Tarkwa, Ghana
Bosson-Amedenu Senyefia, Department of Mathematics and ICT, Holy Child College of Education, Takoradi, Ghana
Daniel Gbormittah, Department of Mathematics and ICT Education, Komenda College of Education, Komenda, Ghana
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The passage of National Health Insurance Scheme to replace the old system (called cash and carry) in Ghana seems to have raised many questions as to whether it has increased the rate at which people attend hospital and abolished cash and carry system. The data collected were hospital attendance for both health insurance and cash and carry system on monthly basis across age groups and gender for 2008-2017, obtained from Cape Coast Teaching Hospital. Chi-Square tests and the Box-Jenkins’s methodology of time series analysis were employed to analyse the data. From the findings, the autocorrelation function (ACF) and partial autocorrelation function (PACF) plot suggested an AR process with order 1. Candidate models were obtained using the minimum AIC criteria to select adequate models and appropriate models were obtained as SARIMA (1,0,0) (0,1,0)12 model for insured (NHIS) and SARIMA (1,1,1) (2,0,1)12 model for uninsured (Cash and Carry system). Model diagnostics tests were performed using Ljung-Box test. The Chi-square tests inferred dependence in hospital attendance between insured and non-insured patients on gender and the years, In conclusion, insured patients will be increasing throughout the age groups and non-insured patients will be increasing for specific age groups 0-28 days to 15-17 years for the next 24 months. This research recommended among others that education should be given to the general public about the importance of health insurance, it registration and operations especially age group 0-28days to 15-17 years because they seem to continue the use of Cash and Carry System in seeking healthcare regardless of the introduction of NHIS.
Box-Jenkins, NHIS, Cash Carry, Hospital Attendance, Chi-Square
To cite this article
Bridget Sena Borbor, Bosson-Amedenu Senyefia, Daniel Gbormittah, Statistical Analysis of Health Insurance and Cash and Carry Systems in Cape Coast Teaching Hospital of Ghana, Science Journal of Applied Mathematics and Statistics. Vol. 7, No. 3, 2019, pp. 36-44. doi: 10.11648/j.sjams.20190703.12
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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