Handling missing data in a rheumatoid arthritis registry using random forest approach
| Autor: | Alsaber, Ahmad, Al-Herz, Adeeba, Pan, Jiazhu, Al-Sultan, Ahmad T., Mishra, Divya, KRRD Group |
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| Rok vydání: | 2021 |
| Předmět: |
Models
Statistical Mean squared error business.industry Mean squared prediction error Data Collection Decision Trees Missing data Response to treatment Random forest Arthritis Rheumatoid Rheumatology Kuwait Research Design Data Interpretation Statistical Statistics Medicine Humans In patient Imputation (statistics) Registries Supervised Machine Learning business Categorical variable Algorithms |
| Zdroj: | International journal of rheumatic diseasesREFERENCES. 24(10) |
| ISSN: | 1756-185X |
| Popis: | Missing data in clinical epidemiological research violate the intention-to-treat principle, reduce the power of statistical analysis, and can introduce bias if the cause of missing data is related to a patient's response to treatment. Multiple imputation provides a solution to predict the values of missing data. The main objective of this study is to estimate and impute missing values in patient records. The data from the Kuwait Registry for Rheumatic Diseases was used to deal with missing values among patient records. A number of methods were implemented to deal with missing data; however, choosing the best imputation method was judged by the lowest root mean square error (RMSE). Among 1735 rheumatoid arthritis patients, we found missing values vary from 5% to 65.5% of the total observations. The results show that sequential random forest method can estimate these missing values with a high level of accuracy. The RMSE varied between 2.5 and 5.0. missForest had the lowest imputation error for both continuous and categorical variables under each missing data rate (10%, 20%, and 30%) and had the smallest prediction error difference when the models used the imputed laboratory values. |
| Databáze: | OpenAIRE |
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