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首页> 外文期刊>The International journal of health planning and management >Modelling the no‐show of patients to exam appointments of computed tomography
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Modelling the no‐show of patients to exam appointments of computed tomography

机译：Modelling the no‐show of patients to exam appointments of computed tomography

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Abstract Background Patients' no‐shows negatively impact healthcare systems, leading to resources' underutilisation, efficiency loss, and cost increase. Predicting no‐shows is key to developing strategies that counteract their effects. In this paper, we propose a model to predict the no‐show of ambulatory patients to exam appointments of computed tomography at the Radiology department of a large Brazilian public hospital. Methods We carried out a retrospective study on 8382 appointments to computed tomography (CT) exams between January and December 2017. Penalised logistic regression and multivariate logistic regression were used to model the influence of 15 candidate variables on patients' no‐shows. The predictive capabilities of the models were evaluated by analysing the Area Under the Curve (AUC) of the Receiver Operating Characteristic (ROC). Results The no‐show rate in computerised tomography exams appointments was 6.65. The two models performed similarly in terms of AUC. The penalised logistic regression model was selected using the parsimony criterion, with 8 of the 15 variables analysed appearing as significant. One of the variables included in the model (number of exams scheduled in the previous year) had not been previously reported in the related literature. Conclusions Our findings may be used to guide the development of strategies to reduce the no‐show of patients to exam appointments.

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