The Korean Journal of Applied Statistics (응용통계연구)

The Korean Statistical Society (한국통계학회)
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Nomogram building to predict dyslipidemia using a naïve Bayesian classifier model

순수 베이지안 분류기 모델을 사용하여 이상지질혈증을 예측하는 노모 그램 구축

  • Received : 2019.05.23
  • Accepted : 2019.06.20
  • Published : 2019.08.31
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Abstract

Dyslipidemia is a representative chronic disease affecting Koreans that requires continuous management. It is also a known risk factor for cardiovascular disease such as hypertension and diabetes. However, it is difficult to diagnose vascular disease without a medical examination. This study identifies risk factors for the recognition and prevention of dyslipidemia. By integrating them, we construct a statistical instrumental nomogram that can predict the incidence rate while visualizing. Data were from the Korean National Health and Nutrition Examination Survey (KNHANES) for 2013-2016. First, a chi-squared test identified twelve risk factors of dyslipidemia. We used a naïve Bayesian classifier model to construct a nomogram for the dyslipidemia. The constructed nomogram was verified using a receiver operating characteristics curve and calibration plot. Finally, we compared the logistic nomogram previously presented with the Bayesian nomogram proposed in this study.

이상지질혈증은 한국인의 대표적인 성인병이며 지속적인 관리가 필요한 만성질환이다. 또한 고혈압이나 당뇨병과 함께 심혈관계 질환의 위험 요인으로 잘 알려져 있다. 하지만 혈관 질환은 검사 없이는 질병 판단을 하기 어려운 것이 현실이다. 본 연구에서는 이상지질혈증의 인지와 예방을 위하여 관련된 위험 요인을 확인한다. 이들을 종합하여 시각화하면서 발병률 예측까지 가능한 통계적 도구 노모그램을 구축하였다. 데이터는 국민건강영양조사 6기, 7기 제1차년도 (2013-2016) 데이터를 사용하였다. 분석 순서로는 먼저 이상지질혈증의 총 12가지 위험 요인을 교차분석을 통해 확인하였다. 그리고 순수 베이지안 분류기를 이용하여 이상지질혈증에 대한 모형으로 노모그램을 구축하였다. 구축한 노모그램은 ROC 곡선과 Calibration plot을 사용하여 신뢰성을 검증하였다. 마지막으로 이전에 제시했던 로지스틱 노모그램과 본 연구에서 제안한 베이지안 노모그램을 비교하였다.

Keywords

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