60 research outputs found

    Validation of the Edinburgh Postnatal Depression Scale in an Iranian sample

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    Background: Considering the adverse effects of postpartum depression on both mother and infant, a screening instrument for early diagnosis seems to be of importance. Aims: To assess the psychometric properties of the Persian version of Edinburgh Postnatal Depression Scale (EPDS) on a sample of Iranian postpartum women. Method: The EPDS was translated and back-translated in the standard method. The questionnaire was completed by 600 postpartum women. Hundred cases with an EPDS score of �9 and 100 cases with an EPDS of <9 were randomly selected for interview. Sensitivity, specificity, positive likelihood ratio, and receiver operating characteristics were calculated by comparing the EPDS sum score against the DSM-IV diagnoses. The correlation coefficient of the EPDS score with GHQ-12 score was calculated. Principal component analysis and internal consistency were assessed. Results: The best cutoff scores for major depression were 12=13 with a sensitivity and specificity of 95.3% and 87.9%, respectively. The correlation coefficient of the total score of the Persian version of EPDS with the GHQ-12 total score was 0.76 (P<0.001). A two-factor solution was selected as the most appropriate model based on both values and the score plot. The coefficient alpha for the whole scale was 0.83. Conclusion: The Persian version of EPDS is a reliable and valid measure for detecting postpartum depression. Furthermore, it seems acceptable to patients and a valid screening instrument for depression in postpartum women

    Decreases in Community Viral Load Are Accompanied by Reductions in New HIV Infections in San Francisco

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    BACKGROUND: At the individual level, higher HIV viral load predicts sexual transmission risk. We evaluated San Francisco's community viral load (CVL) as a population level marker of HIV transmission risk. We hypothesized that the decrease in CVL in San Francisco from 2004-2008, corresponding with increased rates of HIV testing, antiretroviral therapy (ART) coverage and effectiveness, and population-level virologic suppression, would be associated with a reduction in new HIV infections. METHODOLOGY/PRINCIPAL FINDINGS: We used San Francisco's HIV/AIDS surveillance system to examine the trends in CVL. Mean CVL was calculated as the mean of the most recent viral load of all reported HIV-positive individuals in a particular community. Total CVL was defined as the sum of the most recent viral loads of all HIV-positive individuals in a particular community. We used Poisson models with robust standard errors to assess the relationships between the mean and total CVL and the primary outcome: annual numbers of newly diagnosed HIV cases. Both mean and total CVL decreased from 2004-2008 and were accompanied by decreases in new HIV diagnoses from 798 (2004) to 434 (2008). The mean (p = 0.003) and total CVL (p = 0.002) were significantly associated with new HIV cases from 2004-2008. CONCLUSIONS/SIGNIFICANCE: Reductions in CVL are associated with decreased HIV infections. Results suggest that wide-scale ART could reduce HIV transmission at the population level. Because CVL is temporally upstream of new HIV infections, jurisdictions should consider adding CVL to routine HIV surveillance to track the epidemic, allocate resources, and to evaluate the effectiveness of HIV prevention and treatment efforts

    Is Prone Position One of the Symptoms of Childhood Gastroesophageal Reflux Disease?

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    Abstract: Background & Aims: The aim of the present study was to find whether prone position is one of the symptoms of childhood gastroesophageal reflux disease or not. Method: In this prospective case-control study, 200 children with gastroesophgeal reflux disease (case group) and 210 healthy children (control group) were studied between 21 march 2009 and 21 march 2011. Data gathering was performed by a questionnaire including variables of sex, age, main complaint, sleeping position, endoscopic and pathologic findings. The questionnaires were filled out by face to face interviews with children’s mothers. The patient group underwent upper endoscopy with pediatric video-endoscope. Pathologic reflux was approved in histological studies. Results: Mean age of case and control groups were 5.0 ± 3.2, and 5.2±3.0 years respectively. The most common symptoms were abdominal pain (46.5%), and vomiting (34.8%). The majority of cases with esophagitis (73%) lied in prone position in night that had significant difference (P<0.0001) with the corresponding value in the control group (37.1%). In present study sensitivity and specificity of prone position for gastroesophagal reflux disease were respectively, 73% and 62.9%. Conclusion: According to the results, during taking history, prone position should be questioned. Keywords: Gastroesophageal reflux, Prone position, Esophagitis, Iran, Chil

    Screening for Celiac Disease in Growth Retarded Children with or without Chronic Diarrhea: a Study on Children in Kerman/Iran

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    Abstract: Background & Aims: The aim of this study was to determine the yield of screening for celiac disease in children with failure to thrive and with or without chronic diarrhea. Methods: In this prospective study, 144 children aged 1-14 years and weighed below the fifth percentile with or without chronic diarrhea were studied during six months in 2010. Sample collection was done in the private office of one of the researchers, health care clinics, schools, and subspecialty clinic of Afzalipour Hospital, Kerman/ Iran. Screening was done by measuring anti-tissue transglutaminase IgG antibody test (tTG test). All positive cases underwent upper endoscopy with pediatric Pentax video endoscope. Definitive diagnosis was made by doing small intestine biopsy and histological study. Results: Mean weight and age of children were respectively 14 ± 4.2kg and 6 ± 3.3 years. One third of subjects had diarrhea. Positive tTG test was observed in 11.1% of children. Celiac was confirmed in all seropositive subjects by intestinal biopsy. Therefore, the predictive value of tTG test was 100%. There was no significant relationship between the prevalence of celiac and variables of age (p=0.445), sex (p=0.859) and chronic diarrhea (p=0.137). Conclusion: Regarding the relatively high prevalence of celiac disease in growth retarded children (11.1%), and high sensitivity (100%) of tTG test found in the present study, screening of growth retarded children with or without chronic diarrhea for celiac disease seems logical. Keywords: Celiac disease, Chronic diarrhea, Serology, Failure to thriv

    Simulink/PARS Integration Support

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    The state of the art for signal processor hardware has far out-paced the development tools for placing applications on that hardware. In addition, signal processors are available in a variety of architectures, each uniquely capable of handling specific types of signal processing efficiently. With these processors becoming smaller and demanding less power, it has become possible to group multiple processors, a heterogeneous set of processors, into single systems. Different portions of the desired problem set can be assigned to different processor types as appropriate. As software development tools do not keep pace with these processors, especially when multiple processors of different types are used, a method is needed to enable software code portability among multiple processors and multiple types of processors along with their respective software environments. Sundance DSP, Inc. has developed a software toolkit called “PARS”, whose objective is to provide a framework that uses suites of tools provided by different vendors, along with modeling tools and a real time operating system, to build an application that spans different processor types. The software language used to express the behavior of the system is a very high level modeling language, “Simulink”, a MathWorks product. ORNL has used this toolkit to effectively implement several deliverables. This CRADA describes this collaboration between ORNL and Sundance DSP, Inc

    Validation of an ultrashort persian version of oral health impact profile (OHIP-5) questionnaire

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    Objective: To validate the ultrashort (5-item) Persian version of OHIP by investigating its psychometric properties. Material and Methods: Construct validity was assessed by examining the correlation between OHIP-5 scores and self-reported oral health status, judgment for dental treatment needs and the number of natural teeth. Reliability was calculated using Cronbach�s alpha and corrected item-total correlation. Effect size (ES) and Standardized Response Mean (SRM) were calculated for the responsiveness of the scale and factor analysis was done by measuring Kaiser-Meyer-Olkin (KMO), Bartlett�s sphericity test and scree plot. Results: In 430 subjects (mean age 41.56+/-11.35 years, 56 female) the correlations between OHIP-5 scores and mentioned items were significant (p<0.01) indicating sufficient construct validity. The reliability coefficient (Cronbach�s alpha) of the OHIP-5 was above the recommended 0.7 thresholds (0.809) and considered well. For evaluation of responsiveness, the ES was measured to be 5.604 and the SRM was 1.5. Moreover, in the confirmatory factor analysis, the unidimensional model for OHIP5 approved by indices (KMO=0.81, p<0.001 for Bartlett sphericity). Conclusion: The Persian version of OHIP-5 is a precise, valid, reliable and unidimensional instrument for assessing oral health-related quality of life among the general adult population. © 2020, Association of Support to Oral Health Research (APESB). All rights reserved

    Validation of a Persian Version of the Oral Health Impact Profile (OHIP-14)

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    &quot;nBackground: The oral health-related quality of life indicators are increasingly used to measure the impact of the oral condi&amp;shy;tions on quality of life. One of the most used indicators is the Oral Health Impact Profile (OHIP-14), but it has never been ap&amp;shy;plied in Iran. The aim of this study was to validate the usage of OHIP-14 among Iranians. &quot;nMethods: A cross-sectional study was performed in Kerman (Iran). A consecutive sample (n= 400) of the Kerman Dental School Clinics attending patients participated in this study. All participants self-completed the translated OHIP-14. Reliabil&amp;shy;ity analyses, validity tests, and responsiveness were carried out to evaluate the psychometric properties of the OHIP-14. &quot;nResults: The reliability coefficient (Cronbach&apos;s alpha) of the OHIP-14 was above the recommended 0.7 threshold and consid&amp;shy;ered excellent (alpha: 0.85). The coefficient of the test-retest reliability measured by ICC was 0.88 (CI 95%: 0.80-0.93). Poorer oral condition was strongly associated with OHIP scores of the patients, supporting construct validity. More&amp;shy;over, for evaluation of responsiveness, the ES was measured to be 0.43 and the SRM was 0.67. &quot;nConclusions: The Persian version of OHIP-14 is a precise, valid and reliable instrument for assessing oral health-re&amp;shy;lated quality of life among Persian populatio
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