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      The 12-item general health questionnaire as an effective mental health screening tool for general korean adult population.

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          Abstract

          The 12-item General Health Questionnaire (GHQ-12) has been used extensively in various settings across different cultures. This study was conducted to determine the thresholds associated with optimum sensitivity and specificity for the GHQ-12 in Korean adults.

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          Diagnostic and statistical manual of mental disorders.

          Vijay A. Mittal, Elaine Walker (2011)
          Article 0 comments Cited 3519 times – based on 0 reviews     Review now
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            Receiver-operating characteristic (ROC) plots: a fundamental evaluation tool in clinical medicine.

            M H Zweig, G. Campbell (1993)
            The clinical performance of a laboratory test can be described in terms of diagnostic accuracy, or the ability to correctly classify subjects into clinically relevant subgroups. Diagnostic accuracy refers to the quality of the information provided by the classification device and should be distinguished from the usefulness, or actual practical value, of the information. Receiver-operating characteristic (ROC) plots provide a pure index of accuracy by demonstrating the limits of a test's ability to discriminate between alternative states of health over the complete spectrum of operating conditions. Furthermore, ROC plots occupy a central or unifying position in the process of assessing and using diagnostic tools. Once the plot is generated, a user can readily go on to many other activities such as performing quantitative ROC analysis and comparisons of tests, using likelihood ratio to revise the probability of disease in individual subjects, selecting decision thresholds, using logistic-regression analysis, using discriminant-function analysis, or incorporating the tool into a clinical strategy by using decision analysis.
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              Measuring the accuracy of diagnostic systems.

              J Swets (1988)
              Diagnostic systems of several kinds are used to distinguish between two classes of events, essentially "signals" and "noise". For them, analysis in terms of the "relative operating characteristic" of signal detection theory provides a precise and valid measure of diagnostic accuracy. It is the only measure available that is uninfluenced by decision biases and prior probabilities, and it places the performances of diverse systems on a common, easily interpreted scale. Representative values of this measure are reported here for systems in medical imaging, materials testing, weather forecasting, information retrieval, polygraph lie detection, and aptitude testing. Though the measure itself is sound, the values obtained from tests of diagnostic systems often require qualification because the test data on which they are based are of unsure quality. A common set of problems in testing is faced in all fields. How well these problems are handled, or can be handled in a given field, determines the degree of confidence that can be placed in a measured value of accuracy. Some fields fare much better than others.
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                Author and article information

                Journal
                Journal ID (iso-abbrev): Psychiatry Investig
                Title: Psychiatry investigation
                Publisher: Korean Neuropsychiatric Association (KAMJE)
                ISSN: 1738-3684
                ISSN (Print): 1738-3684
                Publication date (Electronic): Dec 2013
                Volume: 10
                Issue: 4
                Affiliations
                [1 ] Department of Psychiatry, Kangwon National University School of Medicine, Chuncheon, Republic of Korea.
                [2 ] Department of Psychiatry and Behavioral Science, Seoul National University College of Medicine, Seoul, Republic of Korea.
                [3 ] Department of Psychiatry, Asan Medical Center, Ulsan University College of Medicine, Seoul, Republic of Korea.
                [4 ] Department of Psychiatry, College of Medicine, Inha University, Incheon, Republic of Korea.
                [5 ] Department of Psychiatry, Depression Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
                [6 ] Department of Psychiatry, Kyungpook National University College of Medicine, Daegu, Republic of Korea.
                [7 ] Department of Psychiatry, Seoul Medical Center, Seoul, Republic of Korea.
                Article
                DOI: 10.4306/pi.2013.10.4.352
                PMC ID: 3902152
                PubMed ID: 24474983
                SO-VID: dfa9f693-5a60-42a0-92c8-9a79b087a544
                History

                Keywords: GHQ-12,Psychiatric diagnoses,Specificity,Optimal threshold,Sensitivity
                Data availability:
                Keywords: GHQ-12, Psychiatric diagnoses, Specificity, Optimal threshold, Sensitivity

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