ANALYTICAL REPRESENTATION OF UTILITY FUNCTIONS FOR CERVICAL SCREENING STRATEGIES IN THEIR EVALUATION WITH "COST-UTILITY" METHOD

Author(s)

Soloviov S1, Artemchuk H1, Dutchak I2, Kovalyuk O1, Dzyublyk I1
1PL Shupyk National medical academy of postgraduate education, Kyiv, Ukraine, 2The National Technical University of Ukraine “Kyiv Polytechnic Institute”, Kyiv, Ukraine

OBJECTIVES: Cervical cancer (CC) takes the 3rd place among women cancers globally, accounting for more than quarter of a million deaths annually. In Ukraine it takes the 2nd place of cancers among women aged 15 to 44, accounting for more than 2000 deaths each year. Gradual increase of CC incidence rates during the previous decade is concurrently followed by the decrease of a median age of diagnosis. Incidence rates for CC in Ukraine are estimated to be at least two times higher than in countries with well-organized cervical screening programs. Thus the aim of this study is to evaluate the most efficient cervical screening strategies using “cost-utility” method. METHODS: "Cost-utility"-based analysis and evaluation are based on the results of own clinical and laboratory studies of 1257 cervical samples (HPV DNA tests and cytological diagnostics) from women aged 19 – 65 (mean age 30.68 (±7.72)), living in different regions of Ukraine. Statistical and mathematical methods are used for modeling the utility function of a number of diagnostic strategies. Analytical representation and evaluation of the data was performed using MATLAB Simulink r2014a software package. RESULTS: Initial hypothesis of the utility function form for HPV DNA and cytological tests was put forward. It was assumed that the first test has a maximum utility at a defined age limit due to the age-dependent increase of the probability of cytological test being positive. This results in reduction of the predictive utility of HPV DNA test. The utility function of cytological test must resemble cumulative sigmoid function. Stated hypothesis was verified on the data on HPV DNA presence in normal cytology and cervical intraepithelial lesions using methods of mathematical modeling. CONCLUSIONS: The study confirmed given hypothesis. The obtained results can be used in "cost-utility"-based method of pharmacoeconomic analysis of different cervical screening strategies

Conference/Value in Health Info

2015-09, ISPOR Latin America 2015, Santiago, Chile

Value in Health, Vol. 18, No. 7 (November 2015)

Code

PMD2

Topic

Epidemiology & Public Health

Topic Subcategory

Disease Classification & Coding

Disease

Infectious Disease (non-vaccine), Reproductive and Sexual Health

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