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Showing 1 to 4 of 4 for “"cutpoint"”.
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Validity and Diagnostic Accuracy of a Clinical Trial Battery for Primary Brain Tumor Patients
… clinician ratings of NCF impairment status, at cutpoint -0.50, NCF6Z demonstrated sensitivity = 0.86, specificity = 0.78, PPV = 0.80, and NPV = 0.85. At cutpoint -0.6257, NCF6Z displayed optimal diagnostic accuracy (sensitivity = 0.85, specificity = 0.83, PPV = 0.84, NPV = 0.84). Addition of BD …
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A Study of the Minimum p-value and Related Methods for the Identification of Treatment-Sensitive Groups
… is usually continuous and, therefore, a cutpoint needs to be determined for the definition of the subgroup. The commonly adopted methods, the minimum p-value method and the profile method, suffer from the type I error inflation and/or the identifiability issue. In this thesis research, we …
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Historische Kohortenstudie zum Einfluss von Dieselmotoremissionen auf die Lungenkrebssterblichkeit im Kalibergbau : zweite Follow-Up-Untersuchung und Validierungsstudie
… Vergleich ist für das relative Risiko (RR) ein Cutpoint von 4.9 [mg/m³]*Jahre definiert, was einer 20jährigen Exposition in der am höchsten belasteten Tätigkeitsgruppe entspricht. Die RR sind nach Alter und Rauchverhalten adjustiert und zusätzlich auf der Grundlage von Dosis-Terzilen und …
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Disinfection by-products and prenatal development
… we evaluated how selection of participants and cutpoint use affected risk estimation. We found that failure to adjust for variable length of third trimesters and use of cutpoints with regression can potentially lead to significant bias away from or towards the null, depending on peak or trough …