scholarly journals Cross-validation of the Arabic MINI, Module U, for Diagnosis of Premenstrual Dysphoric Disorder and the Arabic Premenstrual Symptoms Screening Tool

2020 ◽  
Author(s):  
Rifka Chamali ◽  
Rana Emam ◽  
Ziyad Mahfoud ◽  
Hassen Al-Amin
Keyword(s):  
Gold Standard ◽  
Cross Validation ◽  
Screening Tool ◽  
Premenstrual Dysphoric Disorder ◽  
Severe Form ◽  
Receiver Operating Characteristics ◽  
Arab Women ◽  
Operating Characteristics ◽  
Premenstrual Symptoms ◽  
Receiver Operating

Abstract Background Premenstrual dysphoric disorder (PMDD) is a severe form of premenstrual syndrome (PMS) that affects the functioning and includes various physical, depressive, and anxiety symptoms. The Mini-International Neuropsychiatric Interview, Module U (MINI-U), assesses the diagnostic criteria for probable PMDD. The Premenstrual Symptoms Screening Tool (PSST) measures the severity of these symptoms and provides scores from which we can diagnose PMS and PMDD. The purpose of this study is to obtain the cut-offs from PSST that would fit well with the diagnosis of PMDD using the MINI-U as a gold standard. Methods We administered the Arabic MINI-U and PSST independently to Arab women (N = 194) in Doha, Qatar. The Wilcoxon-Mann-Whitney test was used to compare the PSST ordinal scores between those who answered Yes vs No on the corresponding MINI-U items. These comparisons were followed by Receiver Operating Characteristics (ROC) analyses using the MINI-U answers as the gold standard to determine the cut-off scores on the PSST, in addition to their sensitivity and specificity measures Results The rating of PSST scores for participants who answered Yes in the MINI-U varied from 1.5 (not at all to mild) to 3 (moderate). Receiver Operating Characteristics (ROC) analyses showed that all areas under the curves (AUCs) were significant with the cut-off scores on the corresponding PSST items. Conclusion This cross-validation gives reassurance that the severity measures of PSST can recognize patients with moderate/severe PMS and PMDD who would benefit from immediate treatment instead of waiting another two months. Keywords Premenstrual Symptoms Screening Tool, Premenstrual Dysphoric Disorder, Arabs, cross-validation

scholarly journals Development of a Brief Pre-Implementation Screening Tool to Identify Teachers Who Are at Risk for Not Implementing Intervention Curriculum and High-Implementing Teachers

2016 ◽  
Vol 44 (1) ◽  
pp. 83-91 ◽  
Author(s):  
Bo Wang ◽  
Bonita Stanton ◽  
Sonja Lunn ◽  
Pooja Patel ◽  
Veronica Koci ◽  
...  
Keyword(s):  
Sensitivity And Specificity ◽  
Screening Tool ◽  
Receiver Operating Characteristics ◽  
Operating Characteristics ◽  
High Performing ◽  
Hiv Intervention ◽  
School Based ◽  
National Implementation ◽  
School Based Interventions ◽  
Receiver Operating

Few questionnaires have been developed to screen for potentially poor implementers of school-based interventions. This study combines teacher characteristics, perceptions, and teaching/training experiences to develop a short screening tool that can identify potential “low-performing” or “high-performing” teachers pre-implementation. Data were gathered from 208 teachers and 4,411 students who participated in the national implementation of an evidence-based HIV intervention in The Bahamas. Sensitivity and specificity were evaluated for the detection of “low-performing” and “high-performing” teachers. The validity of the screening tool was assessed using receiver operating characteristics analysis. The School Pre-implementation Screening Tool consists of seven predictive factors: duration as teacher, working site, attendance at training workshops, training in interactive teaching, perceived importance of the intervention, comfort in teaching the curriculum, and program priority. The sensitivity and specificity were 74% and 57% in identifying “low-performing” teachers and 81% and 65% with “high-performing” teachers. The screening tool demonstrated an acceptable/good validity (area under the receiver operating characteristics curve was 0.68 for “low-performing teachers” and 0.78 for “high-performing” teachers). Our brief screening tool can facilitate teacher training and recruitment of engaged teachers in implementation of school-based interventions.

scholarly journals IMPLEMENTASI FUZZY DECISION TREE UNTUK PREDIKSI PENYAKIT LIVER PADA DATASET ILPD (INDIAN LIVER PATIENT DATASET)

2019 ◽  
Vol 5 (2) ◽  
pp. 71
Author(s):  
Ied Andro Medha ◽  
Dian Puspita Sari
Keyword(s):  
Decision Tree ◽  
Cross Validation ◽  
Receiver Operating Characteristics ◽  
Decision Threshold ◽  
Fuzzy Decision ◽  
Fuzzy Decision Tree ◽  
Operating Characteristics ◽  
Control Threshold ◽  
Fold Cross Validation ◽  
Receiver Operating

Hati manusia adalah salah satu organ utama dalam tubuh dan penyakit liver dapat menyebabkan banyak masalah dalam kehidupan manusia. Hati mengubah zat beracun menjadi nutrisi dan kemudian tubuh menggunakannya untuk mengendalikan tingkat hormon dalam tubuh. Prediksi penyakit liver yang cepat dan akurat memungkinkan perawatan dini dan efektif. Perkembangan dari teknologi komputer membuat pekerjaan diagnosis atau pengambilan keputusan menjadi lebih mudah. Di dalam machine learning memungkinkan sebuah komputer mampu untuk memutuskan atau memberikan saran yang tepat. Uji coba telah dilakukan menggunakan algoritme fuzzy decision tree dengan menggunakan beberapa nilai threshold yaitu fuzziness control threshold (𝜃𝑟) dan leaf decision threshold (𝜃𝑛) yang telah di tentukan dengan metode uji coba 10-fold cross validation dan diperoleh hasil akurasi sebesar 78.95%. Dikarenakan akurasi tersebut di peroleh di beberapa nilai threshold yang berbeda, maka untuk mengetahui kinerja akurasi yang baik digunakanlah metode receiver operating characteristics (ROC) sehingga hasil ROC menunjukkan bahwa akurasi yang paling optimal 78.95% berada saat 𝜃𝑟=75%,77%,80%,82%,85%, 87%,90%,92%,95%,98% dan 𝜃𝑛=6%.Kata Kunci: Penyakit Liver, Fuzzy Decision Tree, K-Fold Cross Validation dan Receiver Operating Characteristics

Kriteriumsbezogene Cut-Off-Werte für Tätigkeitsspielraum und Arbeitsintensität

Diagnostica ◽  
2019 ◽  
Vol 65 (3) ◽  
pp. 179-190 ◽  
Author(s):  
Vincent Mustapha ◽  
Renate Rau
Keyword(s):  
Receiver Operating Characteristics ◽  
Operating Characteristics ◽  
Receiver Operating

Zusammenfassung. Cut-Off-Werte ermöglichen eine ökonomische, binäre Beurteilung von Summenscores. Für Beanspruchungsfragebögen, die personenbezogene Merkmale erfragen, sind Cut-Off-Werte häufig vorhanden und in der klinischen Diagnostik unerlässlich. Für die Bewertung von Arbeitsmerkmalen sind Cut-Off-Werte ebenfalls wünschenswert. Bislang fehlen sie jedoch für die Beurteilung von Arbeitsmerkmalen wie Arbeitsintensität und Tätigkeitsspielraum. Zwischen 2006 und 2016 wurden daher in verschiedenen Branchen 801 objektive Arbeitsplatzanalysen durchgeführt, welche eine Unterteilung in gut und schlecht gestalteten Tätigkeitsspielraum sowie gut und schlecht gestaltete Arbeitsintensität nach DIN EN ISO 6385 (2016) ermöglichen. Anhand dieser Unterteilung wurden mit der Receiver-Operating-Characteristics-Analyse Cut-Off-Werte für den subjektiv-bedingungsbezogen Fragebogen zum Erleben von Arbeitsintensität und Tätigkeitsspielraum (FIT; Richter et al., 2000 ) ermittelt. Für den Tätigkeitsspielraum weisen Summenscores ≤ 22 und für die Arbeitsintensität Summenscores ≥ 15 auf eine schlechte Gestaltung des jeweiligen Arbeitsmerkmals hin. Anhand einer weiteren Stichprobe von 1 076 Arbeitenden konnte gezeigt werden, dass Arbeitende mit schlecht gestaltetem Tätigkeitspielraum vital erschöpfter sowie weniger engagiert sind und Arbeitende mit schlecht gestalteter Arbeitsintensität eine höhere Erholungsunfähigkeit sowie vitale Erschöpfung aufweisen.

scholarly journals Arterial Digital Pulse Photoplethysmography in Patients with Suspected Thoracic Outlet Syndrome: A Study of the “Ca+Pra” Maneuver

Diagnostics ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1128
Author(s):  
Jeanne Hersant ◽  
Pierre Ramondou ◽  
Francine Thouveny ◽  
Mickael Daligault ◽  
Mathieu Feuilloy ◽  
...  
Keyword(s):  
Thoracic Outlet Syndrome ◽  
Pulse Amplitude ◽  
Receiver Operating Characteristics ◽  
Upper Limbs ◽  
Operating Characteristics ◽  
Digital Pulse ◽  
Arterial Inflow ◽  
Receiver Operating

The level of pulse amplitude (PA) change in arterial digital pulse plethysmography (A-PPG) that should be used to diagnose thoracic outlet syndrome (TOS) is debated. We hypothesized that a modification of the Roos test (by moving the arms forward, mimicking a prayer position (“Pra”)) releasing an eventual compression that occurs in the surrender/candlestick position (“Ca”) would facilitate interpretation of A-PPG results. In 52 subjects, we determined the optimal PA change from rest to predict compression at imaging (ultrasonography +/− angiography) with receiver operating characteristics (ROC). “Pra”-PA was set as 100%, and PA was expressed in normalized amplitude (NA) units. Imaging found arterial compression in 23 upper limbs. The area under ROC was 0.765 ± 0.065 (p < 0.0001), resulting in a 91.4% sensitivity and a 60.9% specificity for an increase of fewer than 3 NA from rest during “Ca”, while results were 17.4% and 98.8%, respectively, for the 75% PA decrease previously proposed in the literature. A-PPG during a “Ca+Pra” test provides demonstrable proof of inflow impairment and increases the sensitivity of A-PPG for the detection of arterial compression as determined by imaging. The absence of an increase in PA during the “Ca” phase of the “Ca+Pra” maneuver should be considered indicative of arterial inflow impairment.

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