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The Gastroesophageal Reflux Disease Questionnaire in Adolescents: What Is the Best Cutoff Score?
Dian Artanti,Badriul Hegar,Nastiti Kaswandani,Soedjatmiko,Ari Prayitno,Yoga Devaera,Yvan Vandenplas 대한소아소화기영양학회 2019 Pediatric gastroenterology, hepatology & nutrition Vol.22 No.4
Background: A self-assessment questionnaire, the GERD-Questionnaire (GERD-Q) was used to determine the prevalence of GERD in adolescents, describe the related factors, and determine the impact on quality of life (QoL). Methods: The incidence of GERD was evaluated using the GERD-Q in adolescents aged 12–18 years. The Pediatric Gastroesophageal Reflux Disease Symptom Questionnaire and Quality of Life Questionnaire (PGSQ-A) for adolescents were additionally administered. Some factors considered related to GERD were also evaluated. Results: The 520 adolescents were included. The prevalence of suspected GERD, according to a GERD-Q cutoff score of ≥7 was 32.9%, and those drinking soda were 1.7 times more likely to have GERD (95% confidence interval, 1.3–2.2; p <0.001). However, soda consumption was not a risk factor for development of GERD symptoms. Applying a cutoff score of ≥8, only 10.9% of the participants had a positive GERD score, but the association with soda consumption persisted. The median PGSQ-A score in subjects suspected of GERD was 8 (range 0–37) on weekends and 1 (range 0–17) during weekdays ( p <0.001) compared to those not suspected of GERD, with a median of 2 (range 0–27) during weekends and 0 (range 0–10) during weekdays. Heartburn, regurgitation, and extraesophageal symptoms correlated significantly with QoL ( p <0.001). Conclusion: The prevalence of suspected GERD in adolescents was 32.9% or 10.9%, depending on the cutoff score used. There was a statistically significant difference in PGSQ-A scores between the subjects suspected or not of GERD, indicating an impaired QoL.
Log-Average-SNR Ratio and Cooperative Spectrum Sensing
Dian-Wu Yue,Francis C. M. Lau,Qian Wang 한국통신학회 2016 Journal of communications and networks Vol.18 No.3
In this paper, we analyze the spectrum-sensing performanceof a cooperative cognitive radio (CR) network consisting ofa number of CR nodes and a fusion center (FC). We introduce the“log-average-SNR ratio” that relates the average SNR of the CRnode-FC link and that of the primary-user-CR-node link. Assumingthat the FC utilizes theK-out-of-N rule as its decision rule, wederive exact expressions for the sensing gain and the coding gain— parameters used to characterize the CR network performanceat the high SNR region. Based on these results, we determine waysto optimize the performance of the CR network.
The Relationship between Novelty and Value in the Assessment of Organizational Creativity
Diane M. Sullivan,Cameron M. Ford 대한사고개발학회 2005 The International Journal of Creativity & Problem Vol.15 No.2
People use subjective interpretive processes reflecting their knowledge of existing practices in specific domains to assess novelty, value, and creativity. As a result, it is likely that novelty, value, and creativity assessments will differ from one domain to another, depending on domain and assessor characteristics. This study focused on understanding interpretive processes that might create systemic variance in sub-jective assessments of novelty, value, and creativity across different task domains. We present two studies from different organizational task domains (advertising, business strategy) to explore and illustrate differences in subjective assessments. The results suggest that novelty and value independently and differentially impact assessments of creativity in these two business settings. The multidimensional, variable character of creativity assessments suggest that previous findings on creativity should be interpreted with caution. We conclude by presenting methodo-logical and practical issues raised by these findings.