Person: ÖZKAYA, GÜVEN
Loading...
Email Address
Birth Date
Research Projects
Organizational Units
Job Title
Last Name
ÖZKAYA
First Name
GÜVEN
Name
13 results
Search Results
Now showing 1 - 10 of 13
Publication Distance education perception scale for medical students: A validity and reliability study(Bmc, 2021-07-26) Özkaya, Güven; Aydın, Mevlüt Okan; Alper, Züleyha; ÖZKAYA, GÜVEN; AYDİN, MEVLÜT OKAN; ALPER, ZÜLEYHA; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Biyoistatistik Anabilim Dalı; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Tıp Eğitimi Anabilim Dalı; 0000-0002-8060-8803; 0000-0002-8349-9868; AAI-3331-2021; ABE-2261-2020; JJW-0446-2023Background There are major changes in education strategies as higher education institutions urgently need to adopt distance education tools and practices due to the Covid-19 pandemic. Medical education is also trying to get out of this emergency using distance education. In this study, we aimed to develop a reliable and valid scale in order to evaluate the perceptions of medical students towards distance education. Methods The students taking part in the study were in the first five academic years of the medical faculty in Bursa in Turkey. At first, 57 items were determined to evaluate students' perceptions. Content validity was examined according to the assessment of the expert team. Construct validity of these items was examined by exploratory and confirmatory factor analysis. Also, Cronbach's alpha coefficients were calculated for reliability analysis. The medical students' responses were scored using a five-point Likert scale. Results When the content validity was examined, the number of items was determined to be 38 items. Construct validity of these items was examined by exploratory and confirmatory factor analysis. Because of the exploratory factor analysis performed on the responses of 429 medical students, 22 items were included in four factors. This four-factor model was applied to 286 medical students and validated by confirmatory factor analysis. Also, Cronbach's alpha coefficients were calculated for reliability analysis and values were between 0.713 and 0.930. Conclusions This study demonstrated validation and reliability of perceptions of distance education for medical students. We suggest a 22-item model with a four-factorial scale.Publication Air pollution and pediatric respiratory hospital admissions in Bursa, Turkey: A time series study(Taylor & Francis, 2021-10-06) Ünal, Eda; Özdemir, Aysel; Khanjani, Narges; Dastoorpoor, Maryam; Özkaya, Güven; ÜNAL, EDA; ÖZDEMİR, AYSEL; ÖZKAYA, GÜVEN; Bursa Uludağ Üniversitesi/Sağlık Bilimleri Enstitüsü/Hemşirelik Bölümü.; Bursa Uludağ Üniversitesi/Sağlık Bilimleri Fakültesi/Hemşirelik Bölümü.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Biyoistatistik Anabilim Dalı.; 0000-0002-9247-9594; 0000-0002-0815-9505; 0000-0003-0297-846X; AAG-6837-2021; AAC-9352-2021; A-4421-2016We aimed to investigate the relation between air pollution and the number of daily hospitalizations due to pneumonia, asthma, bronchitis in children aged 0-18 in Bursa city of Turkey, between the years 2013-2018. The daily values of air pollutants (PM10, SO2, NO2, NOx, CO, and O3) from 2013 until 2018, were obtained. Adjusted Quasi-Poisson regression models including distributed lags, controlled for climate variables were used for data analysis. Increases in SO2, ozone, PMs, and nitrogen oxides were associated with pneumonia hospitalizations, increases in SO2 NOx and PMs were associated with asthma hospitalizations, and increases in SO2 and ozone were associated with bronchitis hospitalizations. Male hospitalization was related with SO2, ozone, and NOx; while female hospitalization was only related with SO2. This study showed that short-term exposure to air pollution is associated with an increased risk of pneumonia, asthma, and bronchitis hospitalization among children in Bursa.Publication Peer-assisted skills learning in structured undergraduate medical curriculum: An experiential perspective of tutors and tutees(Wolters Kluwer Medknow Publications, 2022-05) Aydin, Mevlüt Okan; Kafa, İlker Mustafa; Özkaya, Güven; Alper, Züleyha; Haque, Shafiul; AYDİN, MEVLÜT OKAN; KAFA, İLKER MUSTAFA; ALPER, ZÜLEYHA; ÖZKAYA, GÜVEN; 0000-0002-8060-8803; 0000-0001-8309-0934; 0000-0002-8349-9868; AAI-3331-2021; AAG-7125-2021; ABE-2261-2020; FQT-8976-2022Background and Aims: This study aims to evaluate the implication of peer-assisted learning model adopted in students' clinical skills training from the perspective of tutees and tutors at the end of a peer-tutored clinical skills program and peer tutors themselves. Subjects and Methods: This cross-sectional study was conducted in the Faculty of Medicine, Bursa Uludag in between January and March 2018. Following the clinical skills training, a questionnaire designed to assess the views of tutees and peer tutors was filled out on a voluntary basis by 159 tutees and 43 tutors. The statistical analysis of the collected and processed data was analyzed by using IBM SPSS 23.0 statistical program. The statistical significance level was maintained as alpha = 0.05. Results: According to the Likert scale, satisfaction with the tutors and the educational environment was high in general. The 2nd term tutees provided more negative feedback compared to other terms. Among all the terms, the most positive answers were provided by the 3rd term students. Although the tutors found themselves fully skilled in communication with colleagues, there were striking differences between the tutors in the 5th and 6th terms of providing a good role model for pre-clinical terms students. Conclusion: Considering peer assisted learning (PAL)'s positive responses from this study, the adoption of PAL has been started to be used as a supplementary teaching method for the clinical skills training at the Faculty of Medicine, Bursa Uludag University. PAL is considered a successful education model since it is cost-efficient for undergraduate medical training and improves the professional skills of both teacher and learner students. It can be availed of as an alternative method in medical faculties where especially the number of academic members is insufficient.Publication An investigation of hearing (250-20,000 hz) in children with endocrine diseases and evaluation of tinnitus and vertigo symptoms(Georg Thieme Verlag Kg, 2020-04-01) Koçyiğit, Murat; Bezgin, Selin Üstün; Çakabay, Taliye; Ortekin, Safiye Giran; Yıldız, Melek; Aydın, Banu; Ozkaya, Guven; ÖZKAYA, GÜVEN; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Biyoistatistik Anabilim Dalı.; 0000-0003-0297-846X; A-4421-2016Introduction Despite much advancement in medicine, endocrine and metabolic diseases remain an important cause of morbidity and even mortality in children. Objective The present study was planned to investigate the evaluation of hearing that also includes high frequencies, and the presence and degree of vertigo and tinnitus symptoms in pediatric patients diagnosed with endocrine diseases such as type 1 diabetes mellitus (DM), growth hormone deficiency (GHD), obesity, idiopathic short stature, and precocious puberty Methods The present study included a patient group of 207 children patients diagnosed with endocrine disease (95 males, 112 females; mean age 9.71 years old [range 6-16 years old]) and a control group including 55 healthy children who do not have any kind of chronic disease (26 males, 29 females; mean age 9.33 years old [range 6-16 years old]). The subjects underwent a hearing test with frequencies between 250 and 20,000 Hz. The vestibular and tinnitus symptoms were evaluated with the Pediatric Vestibular Symptom Questionnaire. Results Out of 207 patients in the patient group, 5 (2.4%) had hearing loss in pure tones, 10 (4.8%) had it in high frequencies, 40 (19.3%) had tinnitus symptoms, and 18 (8.7%) had vertigo symptoms. A total of 4 out of 207 patients in the study group (1.9%), 2 out of 59 with type 1 DM patients (3.4%), 1 out of 46 with GHD (2.2%), and 1 out of 43 obesity patients (2.3%) had hearing loss, vertigo, and tinnitus symptoms. Conclusions Our results suggest that some childhood endocrine diseases can cause some changes in the inner ear, although the exact cause is unknown. Perhaps, a detailed hearing and balance examination should be a routine in a child diagnosed with an endocrine disease. We think it is necessary to work on more comprehensive patient groups and tests in the future.Publication The combination of scoring systems and lactate for predicting short-term mortality in geriatric patients with dyspnea(Springer, 2023-06-19) Ardıç, Anıl; Köksal, Özlem; Durak, Vahide Aslıhan; Dilektaşlı, Aslı Görek; Özkaya, Güven; KÖKSAL, ÖZLEM; DURAK, VAHİDE ASLIHAN; GÖREK DİLEKTAŞLI, ASLI; ÖZKAYA, GÜVEN; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Acil Tıp Anabilim Dalı; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Göğüs Hastalıkları Anabilim Dalı; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Biyoistatistik Anabilim Dalı; 0000-0003-0836-7862; 0000-0003-0297-846X; 0000-0003-2271-5659; AAK-8332-2020; AAE-9483-2021; CNP-1063-2022; IVU-2672-2023BackgroundDyspnea is one of the most common causes for admission to the emergency department. Lactate (L), which can be used as a prognostic marker, was first studied by Broder and Weil and it was shown that a level > 4 mmol/l is associated with a poor prognosis. There are also scoring systems to assess the severity of illness of patients presenting to the emergency department such as the National Early Warning Score (NEWS), Modified Early Warning Score (MEWS), Rapid Emergency Medicine Score (REMS) and VitalPAC Early Warning Score (ViEWS).ObjectivesIn this study, we aimed to investigate the combination of risk scoring systems and lactate in predicting short-term mortality in patients over 65 years of age with the complaint of nontraumatic dyspnea.Materials and methodsThe population of the study consisted of adult patients aged 65 and over who presented to Bursa Uludag University Medical Faculty Emergency Department with dyspnea. Admission NEWS, MEWS, REMS, ViEWS scores and their combined forms with added lactate levels at first admission, and 7-, 14-, and 28-day survival were recorded.ResultsWe found that the modified composite scores with lactate value, and the NEWS, MEWS, REMS, and ViEWS scores could predict the 28-day mortality. Ranking the scores and lactate value predicting 28-day mortality according to the area under the curve (AUC) value revealed that the 28-day mortality was best predicted by the NEWS + lactate with 64.97% sensitivity and 77.53% specificity (p < 0.001). We have shown that increasing lactate levels, NEWS, MEWS, REMS, ViEWS scores and their modified composite scores with lactate above suggested thresholds are independent risk factors for increased mortality in multivariable Cox regression analysis.ConclusionsIn cases with dyspnea, lactate value, NEWS, MEWS, REMS, ViEWS, NEWS-L MEWS-L, REMS-L, and ViEWS-L scores can be used to predict early mortality. Risk scores modified with lactate value were found to be more successful in predicting 28-day mortality.Publication Right- versus left-sided approach for transhepatic tunneled catheter placement: Is there a difference?(Springer, 2021-04-08) Nas, Ömer F.; Candan, Selman; Öztepe, Muhammed F.; Kandemirli, Sedat G.; Bilgin, Cem; İnecikli, Mehmet F.; Özkaya, Güven; Gökalp, Gökhan; Öngen, Gökhan; Erdoğan, Cüneyt; NAS, ÖMER FATİH; CANDAN, SELMAN; Öztepe, Muhammed F.; İNECİKLİ, MEHMET FATİH; ÖZKAYA, GÜVEN; GÖKALP, GÖKHAN; ÖNGEN, GÖKHAN; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Radyoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Sağlık Bilimleri Enstitüsünde/Biyoistatistik Bilim Dalı.; 0000-0003-0297-846X; 0000-0002-3682-2474; AAK-5124-2020; HHS-7433-2022; GVS-7682-2022; AAG-8561-2021; DLB-1623-2022; IVU-2672-2023; GMO-0473-2022; FQR-8472-2022Objective We aimed to compare the technical difficulties, complications, long-term efficacy, and risks between right- and left-sided approach transhepatic tunneled catheterization. Methods We retrospectively evaluated transhepatic tunneled catheter placement cases in our institution between May 2012 and November 2019. Demographic and procedural parameters were recorded. Statistical tests were used to compare the complication rates of right- and left-sided approach. Furthermore, Cox regression analyses were used to investigate the relationship between functional catheter days and included parameters. Results A total of 83 procedures were performed in 46 patients, with a female to male ratio of 1.88 and a mean age of 55.5 +/- 18.2 years. Indication for catheter placement was chronic renal insufficiency and loss of central venous access through traditional routes in all cases. Median functional catheter durations were 28 days (1-382) and 55.5 days (1-780) for right-sided and left-sided access, respectively. Complication rates were similar for both sides. There was no difference between primary and revision procedures in terms of safety and efficacy outcomes. In univariate Cox regression analysis, gender was the only variable which was found to be statistically significant (HR = 2.014 (1.004-4.038)) for functional catheter days. In multivariate Cox regression model, gender and access side were included which failed to reach statistical significance. Conclusions In our study, both right- and left-sided approaches provided similar safety and efficacy outcomes, suggesting that both techniques can be employed based on physician's preference.Publication Effects of coronavirus disease 2019 (covid-19) pandemic on the follow-up and treatment of patients with idiopathic pulmonary fibrosis: A cross-sectional multicenter study phone call survey(European Respiratory Soc Journals, 2021-09-05) Hanta, Ismail; Cilli, Aykut; Ozkaya, Guven; ÖZKAYA, GÜVEN; Coskun, N. Funda; Ursavas, Ahmet; URSAVAŞ, AHMET; Sevinc, Can; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Göğüs Hastalıkları Anabilim Dalı.; 0000-0003-3604-8826; 0000-0002-4069-9181; AAI-3169-2021Publication Dental caries severity and related factors of 1307 Turkish boarding school children(Wolters Kluwer Medknow Publications, 2021-10-01) Cubukcu, Çubukçu. Elbek; Ercan, İlker; Özkaya, Güven; ELBEK ÇUBUKÇU, ÇİĞDEM; ERCAN, İLKER; ÖZKAYA, GÜVEN; Bursa Uludağ Üniversitesi/Diş Hekimliği Fakültesi/Pedodonti Anabilim Dalı; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Biyoistatistik Bölümü; 0000-0002-2382-290X; 0000-0003-0297-846X; 0000-0002-1480-2907; A-4421-2016; AAH-2726-2021; ABF-2367-2020Background: In Turkey, dental caries is a disease which still has been considering as a real public health problem. School children of lower socioeconomic status had greater caries experience and higher caries severity in both primary and permanent dentitions. Aims: To determine the frequency of dental caries and its related factors among boarding school children. Patients and Methods: Cross-sectional study. We examined 1307 boarding school children aged 7-14 for caries status and its related factors. Data on dental health and its related factors were obtained from the archive of Ege Oral Health and Dentistry Association. Comparisons of caries severity (as decayed/missing/filled primary teeth, dmft/decayed/missing/filled permanent teeth, DMFT and significant caries index,) and examination years were made. Caries trend were also identified. Correlations between caries severity and its related factors were also performed. SPSS 20.0 was used for statistical analysis. Results: DMFT and SiC for DMFT of all children were 2.35 and 5.04, respectively. 70-year-old had the highest dmft, whereas 14-year-olds had the highest DMFT. No correlation was found between decreased dmft and tooth brushing frequency, regular dental check-ups, and oral hygiene status. There was a weak correlation between decreased DMFT and increased number of dental visits in 2008 and 2009. In children received more than one examination and/or treatment (n = 269), the SiC index for dmft was 10.52 in 2002. In 2004, the index decreased to 3.57. The SiC for DMFT was 4.09 in 2002 and 2004. No correlation was identified between decreased dmft and DMFT and tooth brushing frequency, regular dental check-ups, and oral hygiene status both for the years of 2002 and 2004. The mean dmft of 32 children had prophylaxis for dental caries in 2002 was significantly decreased in 2004. Conclusion: Caries prevalence and severity of boarding school children were high even they were followed-up regularly.Publication Hopelessness among medical students caused due to covid-19 pandemic linked educational hiatus: A case study of Bursa Uludag University, Türkiye(MDPI, 2023-02-01) Aydın, Mevlüt Okan; Özkaya, Güven; Kafa, İlker Mustafa; Haque, Shafiul; Alper, Züleyha; AYDİN, MEVLÜT OKAN; ÖZKAYA, GÜVEN; KAFA, İLKER MUSTAFA; ALPER, ZÜLEYHA; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Tıp Eğitimi Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Biyoistatistik Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Anatomi Anabilim Dalı.; 0000-0002-8060-8803; 0000-0003-0297-846X; 0000-0001-8309-0934; A-4421-2016; ABE-2261-2020; AAI-3331-2021; AAG-7125-2021The COVID-19 pandemic has caused disruptions in medical education, leading to feelings of hopelessness among students regarding their medical careers. However, effective institutional crisis-response approaches can mitigate these feelings of hopelessness. This study evaluated changes in the levels of hopelessness among Turkish medical students due to interruptions in their education caused by the pandemic between March and July 2020, using the Beck Hopelessness Scale in three selected periods. A statistical survey was conducted with a total of 3580 participants in three different periods to study the impact of various contributing factors, such as socio-economic status, family problems, health problems, and lack of working environment, on the levels of hopelessness in conjunction with active COVID-19 cases and the effect of institutional interventions for the continuation of medical education during the pandemic. The analysis revealed a direct relationship between contributing factors and hopelessness scores at the end of the selected three periods. Additionally, active COVID-19 cases and institutional crisis-response strategies were found to be indirectly associated with students' hopelessness. An increase in students' hopelessness was found to be related to an increase in active COVID-19 cases in the country, a lack of continuing education practices, and the role of contributing factors. Conversely, a decrease in hopelessness was associated with effective institutional crisis-response strategies. These findings suggest that educational settings dealing with practical subjects should prioritize preparedness for crisis situations.Publication Impact of preventive actions on rejection rates in the preanalytical period(Walter De Gruyter Gmbh, 2020-02-01) Odabaşı, Merve Sena; Dirican, Melahat; Oral, Arzu Yılmaztepe; YILMAZTEPE ORAL, ARZU; Özkaya, Guven; ÖZKAYA, GÜVEN; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Biyokimya Anabilim Dalı.; 0000-0003-3774-4241; 0000-0002-8962-9758; 0000-0003-0297-846X; AAG-6985-2021; A-5841-2017; A-4421-2016Background: It is responsibility of medical laboratories to determine and reject nonconforming samples as well as take preventive actions. In this study, we examined reasons and percentages of rejected samples. We also investigated impact of the preventive actions on decreasing the rejection rates.Materials and methods: Reasons for rejection were determined by Pareto analysis. Sigma analysis was used for each month to evaluate the ratios and compare with other studies. Some preventive actions were taken to reduce the rejection rates. Pearson's chi square test was used to evaluate effects of preventive actions. Significance level was determined as p <0.05.Results: Most of the rejected samples consisted of samples not received by the laboratory, haemolysed and insufficient samples. The percentages of samples not received by the laboratory and insufficient samples were reduced from 3.80% to 1.94% and 0.33% to 0.31% respectively, while haemolysed samples percentage was increased from 2.83% to 3.37% after the improvement actions. Also, sigma levels for samples not received by the laboratory and haemolysed samples were at the minimum while insufficient samples were at a reasonable level.Conclusion: Improvement actions achieved statistically significant decreases for samples not received by the laboratories for a long-term.