Comparing ROC curves derived from regression models.
Comparing ROC curves derived from regression models.
复制标题
DOI:
10.1002/sim.5648
复制
发表时间:
2013-04-30
影响因子:
2
通讯作者:
Begg, Colin B.
中科院分区:
文献类型:
--
作者:
Seshan, Venkatraman E.;Goenen, Mithat;Begg, Colin B.
关键词:
In constructing predictive models, investigators frequently assess the incremental value of a predictive marker by comparing the ROC curve generated from the predictive model including the new marker with the ROC curve from the model excluding the new marker. Many commentators have noticed empirically that a test of the two ROC areas often produces a non-significant result when a corresponding Wald test from the underlying regression model is significant. A recent article showed using simulations that the widely-used ROC area test produces exceptionally conservative test size and extremely low power. In this article we demonstrate that both the test statistic and its estimated variance are seriously biased when predictions from nested regression models are used as data inputs for the test, and we examine in detail the reasons for these problems. While it is possible to create a test reference distribution by resampling that removes these biases, Wald or likelihood ratio tests remain the preferred approach for testing the incremental contribution of a new marker.
登录
查看更多内容
影响因子:
39.2
作者:
Cook NR;Ridker PM
通讯作者:
Ridker PM
影响因子:
5
作者:
Pepe, MS;Janes, H;Newcomb, P
通讯作者:
Newcomb, P
影响因子:
9.9
作者:
Roe, C. M.;Fagan, A. M.;Morris, J. C.
通讯作者:
Morris, J. C.
影响因子:
19.7
作者:
HANLEY, JA;MCNEIL, BJ
通讯作者:
MCNEIL, BJ
影响因子:
19.7
作者:
Kwon, Sung Woo;Kim, Young Jin;Chang, Hyuk-Jae
通讯作者:
Chang, Hyuk-Jae