# EXAMINING RISK FACTORS OF ANEMIA IN PREGNANCY USING HYBRID LOGISTIC REGRESSION MODEL AND ROUGH SET THEORY

• Izzati Rahmi Mathematics Department, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, Malaysia
• Riswan Efendi Mathematics Department, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, Malaysia
• Nor Azah Samat Mathematics Department, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, Malaysia
• Hazmira Yozza Department of Mathematics and Data Science, Faculty of Mathematics and Natural Science, Universitas Andalas, Indonesia
• Mahdhivan Syafwan Department of Mathematics and Data Science, Faculty of Mathematics and Natural Science, Universitas Andalas, Indonesia
Keywords: Anemia in pregnancy, Logistic Regression, Rough Set Theory, Inconsistent Sample, Hybrid Model

### Abstract

Anemia in pregnancy is a potential danger to the mother and child. Therefore, the risk of anemia in pregnant women requires serious attention from all relevant parties. Considering the numerous negative effects caused by anemia in pregnant women, efforts must be made to prevent and treat anemia in pregnant women by understanding the factors that influence it. This study assesses the risk factors for anemia in pregnant women at Tegal Rejo Community Health Center, Yogyakarta Province. In this paper, a new integrated classification approach with binary logistic regression (LR) analysis and Rough Set Theory (RST) is proposed, in order to examine factors on the incidence of anemia in pregnancy. The proposed model is called the Logistic Regression and Reduction Rough Set (LR3S). In LR3S model, the RST technique is used to detect inconsistent sample and removing inconsistent sample that have probability less than 0.5 before doing LR modelling. To evaluate the development of the resulting model, a comparison was made of the performance of Original Logistic Regression (OLR), LR model after removed outlier namely as Remove Outlier Original Logistic Regression (RO2LR) and LR3S. Using a number of model performance metrics, it is found that LR3S has the best performance for the three models used. Using LR3S model, it is found that CED status, educational level, parity and gestational are significant variable impact on the incidence of anemia.

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Published
2024-03-01
How to Cite
[1]
I. Rahmi, R. Efendi, N. Samat, H. Yozza, and M. Syafwan, “EXAMINING RISK FACTORS OF ANEMIA IN PREGNANCY USING HYBRID LOGISTIC REGRESSION MODEL AND ROUGH SET THEORY”, BAREKENG: J. Math. & App., vol. 18, no. 1, pp. 0537-0552, Mar. 2024.
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