کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1083179 950987 2010 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Logistic regression had superior performance compared with regression trees for predicting in-hospital mortality in patients hospitalized with heart failure
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی سیاست های بهداشت و سلامت عمومی
پیش نمایش صفحه اول مقاله
Logistic regression had superior performance compared with regression trees for predicting in-hospital mortality in patients hospitalized with heart failure
چکیده انگلیسی

ObjectiveTo compare the predictive accuracy of regression trees with that of logistic regression models for predicting in-hospital mortality in patients hospitalized with heart failure.Study Design and SettingModels were developed in 8,236 patients hospitalized with heart failure between April 1999 and March 2001. Models included the Enhanced Feedback for Effective Cardiac Treatment and Acute Decompensated Heart Failure National Registry (ADHERE) regression models and tree. Predictive accuracy was assessed using 7,608 patients hospitalized between April 2004 and March 2005.ResultsThe area under the receiver operating characteristic curve for five different logistic regression models ranged from 0.747 to 0.775, whereas the corresponding values for three different regression trees ranged from 0.620 to 0.651. For the regression trees grown in 1,000 random samples drawn from the derivation sample, the number of terminal nodes ranged from 1 to 6, whereas the number of variables used in specific trees ranged from 0 to 5. Three different variables (blood urea nitrogen, dementia, and systolic blood pressure) were used for defining the first binary split when growing regression trees.ConclusionLogistic regression predicted in-hospital mortality in patients hospitalized with heart failure more accurately than did the regression trees. Regression trees grown in random samples from the same data set can differ substantially from one another.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Clinical Epidemiology - Volume 63, Issue 10, October 2010, Pages 1145–1155
نویسندگان
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