Derivation and validation of cutoffs for clinical use of cell cycle arrest biomarkers.
Derivation and validation of cutoffs for clinical use of cell cycle arrest biomarkers.
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DOI:
10.1093/ndt/gfu292
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发表时间:
2014-11
期刊:
影响因子:
--
通讯作者:
Sapphire Investigators
中科院分区:
文献类型:
--
作者:
Hoste EA;McCullough PA;Kashani K;Chawla LS;Joannidis M;Shaw AD;Feldkamp T;Uettwiller-Geiger DL;McCarthy P;Shi J;Walker MG;Kellum JA;Sapphire Investigators
Acute kidney injury (AKI) remains a deadly condition. Tissue inhibitor of metalloproteinases (TIMP)-2 and insulin-like growth factor binding protein (IGFBP)7 are two recently discovered urinary biomarkers for AKI. We now report on the development, and diagnostic accuracy of two clinical cutoffs for a test using these markers. We derived cutoffs based on sensitivity and specificity for prediction of Kidney Disease: Improving Global Outcomes Stages 2–3 AKI within 12 h using data from a previously published multicenter cohort (Sapphire). Next, we verified these cutoffs in a new study (Opal) enrolling 154 critically ill adults from six sites in the USA. One hundred subjects (14%) in Sapphire and 27 (18%) in Opal met the primary end point. The results of the Opal study replicated those of Sapphire. Relative risk (95% CI) in both studies for subjects testing at ≤0.3 versus >0.3–2 were 4.7 (1.5–16) and 4.4 (2.5–8.7), or 12 (4.2–40) and 18 (10–37) for ≤0.3 versus >2. For the 0.3 cutoff, sensitivity was 89% in both studies, and specificity 50 and 53%. For 2.0, sensitivity was 42 and 44%, and specificity 95 and 90%. Urinary [TIMP-2]•[IGFBP7] values of 0.3 or greater identify patients at high risk and those >2 at highest risk for AKI and provide new information to support clinical decision-making. Clintrials.gov # NCT01209169 (Sapphire) and NCT01846884 (Opal).
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影响因子:
15.1
作者:
Hoste, Eric A. J.;Clermont, Gilles;Kersten, Alexander;Venkataraman, Ramesh;Angus, Derek C.;De Bacquer, Dirk;Kellum, John A.
通讯作者:
Kellum, John A.
影响因子:
9.3
作者:
Bossuyt, PM;Reitsma, JB;de Vet, HCW
通讯作者:
de Vet, HCW
影响因子:
158.5
作者:
Maisel, AS;Krishnaswamy, P;McCullough, PA
通讯作者:
McCullough, PA
影响因子:
37.8
作者:
Januzzi JL Jr;Bamberg F;Lee H;Truong QA;Nichols JH;Karakas M;Mohammed AA;Schlett CL;Nagurney JT;Hoffmann U;Koenig W
通讯作者:
Koenig W
影响因子:
8
作者:
Goldstein, Stuart L.;Kirkendall, Eric;Muething, Stephen
通讯作者:
Muething, Stephen