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24. A STUDY OF WAITING AND SERVICE COSTS OF A MULTI-SERVER QUEUING SYSTEM AT NATIONAL HEALTH INSURANCE SCHEME (NHIS) UNIT OF THE GENERAL HOSPITAL, MINNA by 1A. Lawal, 2A. Isaac and 3A.Abubakar Trans of NAMP Volume 10, (July and Nov 2019), pp 177 – 184
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A STUDY OF WAITING AND SERVICE COSTS OF A MULTI-SERVER QUEUING SYSTEM AT NATIONAL HEALTH INSURANCE SCHEME (NHIS) UNIT OF THE GENERAL HOSPITAL, MINNA by 1A. Lawal, 2A. Isaac and 3A.Abubakar Trans of NAMP Volume 10, (July and Nov 2019), pp 177 – 184

1,2Mathematics Department, Federal University of Technology, Minna.

3Department of Mathematical Science, Ibrahim Badamasi Babagida University, Lapai.

Abstract

Queuing is a common situation that occurs in everyday life. Waiting in relation to the time spent by patients to access services in healthcare system is increasingly becoming a major source of concern to most healthcare providers. This is because keeping patients waiting for too long could worsen their health situation and incur more cost (waiting cost) on them. In the other hand, providing more service capacity to operate the queuing system will increase the service cost. In this study, the performance for the queuing system at National Health Insurance Scheme (NHIS) unit of the General Hospital, Minna, was investigated using a multi-server queuing model. The two conflicting cost were balanced and the optimal performance for the queuing system was determined. The relevant data used in the research was collected for a period of four weeks through direct observations and interviews. The results from the research showed that for morning session, the average queue length, waiting time of patients as well as overutilization of Doctors at the unit could be reduced at an optimal server level of 3 Doctors and at a minimum total cost of ₦6219.98 per hour as against the present server level of 2 Doctors with high total of ₦26025.12 per hour which include waiting and service costs and for evening session, the present server level of 1 Doctor should be maintained. The result from this research is an important information to the management of NHIS unit of General Hospital Minna to provide better service to the patients at a minimum cost.

Keywords: Service Cost, Servers, Customers, Utilization factor, Waiting Cost, Queue.

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