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자료유형
학술저널
저자정보
이종인 (청송보건의료원) 김형렬 (가톨릭대학교)
저널정보
대한의학회 Journal of Korean Medical Science Journal of Korean Medical Science Vol.33 No.19
발행연도
2018.1
수록면
1 - 12 (12page)

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Background: Many studies have tried to develop predictors for return-to-work (RTW). However, since complex factors have been demonstrated to predict RTW, it is difficult to use them practically. This study investigated whether factors used in previous studies could predict whether an individual had returned to his/her original work by four years after termination of the worker's recovery period. Methods: An initial logistic regression analysis of 1,567 participants of the fourth Panel Study of Worker's Compensation Insurance yielded odds ratios. The participants were divided into two subsets, a training dataset and a test dataset. Using the training dataset, logistic regression, decision tree, random forest, and support vector machine models were established, and important variables of each model were identified. The predictive abilities of the different models were compared. Results: The analysis showed that only earned income and company-related factors significantly affected return-to-original-work (RTOW). The random forest model showed the best accuracy among the tested machine learning models; however, the difference was not prominent. Conclusion: It is possible to predict a worker's probability of RTOW using machine learning techniques with moderate accuracy.

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