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Öğe Comparison of GAM and DLNM Methods for Disease Modeling in Environmental Epidemiology(2021) Al, Behçet; Kul, Seval; Yoloğlu, Saim; Boğan, Mustafa; Karadağ, MehmetABSTRACT Objective: In this study, it was aimed to compare the performance results of the methods modeled by using generalized additive models (GAM) and distributed lag non-linear models (DLNM) methods from real data of three different outcome variables of three separate diseases related to air pollution. Material and Methods: The data were retrospectively obtained from three hospitals under the General Secretariat of Gaziantep province public hospitals for a total of 1,916 days between 01 January 2009 and 31 March 2014. Response variables were number of the emergency unit admission, hospitalization and mortality due to asthma, chronic obstructive pulmonary disease (COPD) and pneumonia. The response variables were estimated by GAM and DLNM methods by building four different models and the performances of the models were compared. Results: When the estimation performances of GAM and DLNM methods are compared for each of the dependent variables in the prediction of hospitalizations due to asthma, GAM model IV [Akaike Information Criteria (AIC) (4,280.63)] values were found to perform the best. It was observed that DLNM method performed better than GAM in models established for the prediction of almost all other dependent variables. For when compare the odds ratio (OR) plot estimated on particulate matter (PM10); it was seen that GAM method made predictions with lower standard error compared to DLNM methods. Conclusion: When the models created with each dependent variable were compared; it was generally observed that superior performance was obtained from the DLNM method. However, the lowest standard error in the OR charts were observed in the models using the GAM method.Öğe Effect of desert dust storms and meteorological factors on respiratory diseases(Wiley, 2022) Boğan, Mustafa; Kul, Seval; Al, Behçet; Oktay, Mehmet Murat; Akpinar Elci, Muge; Pinkerton, Kent E.; Bayram, Hasan[Bastract Not Available]Öğe The Effect of Epinephrine Administration on Return of Spontaneous Circulation and One-Month Mortality with Cardiopulmonary Arrest Patients(2020) Sabak, Mustafa; Al, Behçet; Oktay, Mehmet Murat; Zengin, Suat; Boğan, Mustafa; Gümüşboğa, Hasan; Kazaz, Tanyeli GüneyligilObjective: The objective of this study is to determine the effect of epinephrine administration on the return of spontaneous circulation (ROSC) and one-month mortality in patients with cardiopulmonary arrest.Methods: We conducted this study between August 1, 2016 and May 31, 2017. Importantly, we included the witnessed cases (?18years) of in-emergency department cardiopulmonary arrest (IEDCA) and out-of-hospital cardiopulmonary arrest (OHCA) in thestudy. We divided the patients into two groups: the adrenaline group (Group 1) and the non-adrenaline group (Group 2). Thereafter, we investigated ROSC and one-month mortality in them.Results: We included 183 patients (50.3% of males and 49.7% of females with a mean age of 64.2±16.8 years) in the study. Thepercentages of IEDCA and OHCA cases were 25.1% and 74.9%, respectively. Epinephrine was administered to 100 (54.6%) patients(Group 1). Among these patients, 15.9% (n=29) of the patients had shockable rhythms (ventricular fibrillation, pulseless ventriculartachycardia) and 84.1% (n=154) of them had non-shockable rhythms (asystole, pulseless electrical activity) as the initial rhythm.ROSC and one-month mortality rate of these patients were 24% (n=44) and 72.8% (n=36), respectively. The one-month mortalityrates of Group 1 (30% of patients had IEDCA and 70% of patients had OHCA) and Group 2 were 43.8% and 56.2%, respectively(p=0.0231). The ROSC and one-month mortality rates of Group 1 and Group 2 cases, whose initial rhythm was a shockable rhythm,were 26.6% and 50% vs. 42.8% and 66.6%, respectively.Conclusion: In this study, we found no significant difference in terms of obtaining ROSC between the shockable rhythm and ROSCin the IEDCA and OHCA cases (p=0.963 and p=0.141, respectively). The effect of epinephrine administration on patients with IEDCA and OHCA whose ROSC was obtained on one-month mortality was not statistically significant (p>0.05).Öğe Evaluation of the Prevalence of Incidental HBV, HCV and HIV Infection Among Patients Presenting to the Emergency Department: A Prospective Cross-sectional Study(2020) Oktay, Mehmet Murat; Al, Behçet; Zer, Yasemin; Kılıçoğlu, Cuma; Boğan, Mustafa; Sabak, Mustafa; Gümüşboğa, HasanAim: In this study, we randomized the patients without known hepatitis-B, hepatitis C and HIV infection who presented to the emergency department (ED). We measured the serum levels of HBsAg, Anti-HCV and Anti-HIV antibodies besides biochemical tests regarding the diagnostic process of the main complaint resulting in presentation to the ED. In this way, we aimed to determine the prevalence of occult chronic viral diseases among patients presenting to the ED and the risk of ED employees was evaluated.Materials and Methods: The study included 800 patients who had presented to the ED for any reason over two month and who had no history of infectious viral disease. Results: Four hundred and thirthy-four (54.2%) of the patients were male, 366 (45.8%) were female, and the mean age was 32.7 (±16.9) years. The rate of presence of a person with an infectious viral disease at the patient’s home was 1%, 0.5% and 0.0% for HBV, HCV, and HIV, respectively. The overall history of HBV vaccination was 15.5% in our study sample. HBsAg, anti-HCV and HIV-positivity were 2%, 0.8% and 0.0%, respectively.Conclusion: The prevalence of HBV- and HCV-positivity in patients admitted to the ED who did not have any known chronic viral disease was consistent with the general population prevalence. No significant change in the prevalence of HCV compared to previous years can be explained by the absence of a protective vaccine. The absence of HIV-positivity can be explained by the low rate of HIV-positivity in our country.
