Ilhan Can Ozen | Middle East Technical University (original) (raw)

Papers by Ilhan Can Ozen

Fiscaoeconomia

This paper aims to analyze the effects of the macro prevention efforts undertaken in Turkey at th... more This paper aims to analyze the effects of the macro prevention efforts undertaken in Turkey at three different levels. We particularly focus on the effect of COVID-19 prevention arrangements on the health system resilience and resistance at a systemic level. Similarly, the social and health vulnerability of the regional populations to COVID-19 was measured, to encapsulate, in the first wave, to what extent these populations were able to be protected from the worst of the epidemic. We use regional and provincial COVID-19 data set (Hayat-Eve-Sığar module) together with the socioeconomic parameters (TUIK), and health system parameters (Health Statistics Yearbook) to create a map for COVID-19 pandemic, prevention arrangements, and economic impact of the pandemic. The results suggest that especially the health equilibrium of the Southeastern and Eastern Anatolian sections of the health system was protected (for the duration of the 1st wave), as a result of the lockdowns, whereas the econ...

BRILL eBooks, Nov 16, 2022

Journal of Public Health, 2022

Since 2011, the conflict in Syria has led to the migration of 5.6 million refugees, mainly to nei... more Since 2011, the conflict in Syria has led to the migration of 5.6 million refugees, mainly to neighbouring countries. By the start of 2019, over 3.5 million people had moved to Turkey to seek safety, meaning that Turkey is hosting the majority of these refugees. Most of them are today settled in urban and peri-urban locations. A large part of the health services of these populations had been cut before their move, leaving a significant population that had been unprotected and under-provided for. The Turkish health system has provided a cost-free way for these populations to use health services, especially public health services at the primary and secondary levels. The objective of this study was to identify the size and the geography of the health shock as a result of the Syrian influx, starting in 2011. The resulting health effects of the refugee integration and the resilience of the health system are also assessed. We investigated the medical treatment given in public hospitals for the Syrian population for the years 2012–2014, at the primary and secondary health levels. We investigated 10,444,290 cases of health visits, 7,211,342 of them occurring at the secondary level and representing more than 70% of total applications. The overall coverage of the health system for the Syrian population is estimated to be 64%, with 115,000 live-births among Syrian refugees occurring in the same time period. Since the influx of Syrian refugees, there has been a considerable shock to the regional part of the Turkish health system located closest to the Syrian border. From the Syrian refugee point of view, no significant over-crowding or lowered quality effect was observed in the health system. The Syrian refugee’s health demand was observed to be different from that of the Turkish average, as this population’s unique vulnerabilities and access evolution came to the fore. However, significant convergence was then observed in the health demand, as urgent needs were converted into more routine health requirements over time. This initial investigation of the Turkish health system after the Syrian integration underlies the case for a significant resilience being shown, especially in areas where it has been most severely tested.

The International Journal of Health Planning and Management, 2021

This study aims to investigate the determinants of the quality MRI in the Turkish healthcare syst... more This study aims to investigate the determinants of the quality MRI in the Turkish healthcare system. The analysis is done by analysing the referred cases to a major university radiology department in Turkey, and matching the hospital and MRI use characteristics of the source institutions, where the original MRI was taken. Quality of MRI was measured by specialist radiologists. The resulting quality was analysed by gender and imaging area characteristics, source institutional quality, MRI use statistics in source institution and MRI machine use inclination of the source institution. Chi-square and logistic regression were conducted, with regional fixed effects. In the largest dataset, the highest quality institutions have significantly higher average expected MRI quality compared to one level beneath them (0.74 vs. 0.63) (P = 0.02), there is also a significant MRI quality difference between the second highest level of institution, and the third and the fourth (0.63-0.54). Smaller (<0.1) but significant quality difference (P = 0.05) exists for institutions with the lowest two quality levels. In the smaller dataset, with data only from the lowest two institutional quality groups, with a finer institutional quality grading, differences in institutional quality is again found to be a significant driver of MRI quality (P = 0.035).

New Perspectives on Turkey, 2018

Where does Turkey’s performance in the health dimension of the Preston Curve stand with regard to... more Where does Turkey’s performance in the health dimension of the Preston Curve stand with regard to comparable countries on the development ladder? When one observes the chronological progression of health and wealth values embedded in the Preston Curve for developing countries, one sees a near monotonic increase across the board, with only a very small number of downwardly mobile countries. In the face of this near-universal increase in health and wealth values, it is necessary to adopt a more comparative perspective in order to situate the Turkish state’s choices and performance within the general story playing out for developing countries in the second half of the 20th century. Utilizing just such a comparative framework, this article uses China’s experience between 1960 and 2010 as an alternative through which to understand Turkey’s development experience.

International Polymer Processing, 2012

The aim of this work is the production and characterisation of a plastic film having active oxyge... more The aim of this work is the production and characterisation of a plastic film having active oxygen barrier properties. The films have been obtained by adding an oxygen scavenger (either sodium borohydride (NaBH4) or zinc oxide (ZnO)) into a polyethylene terephthalate (PET) matrix during the extrusion process. In order to investigate the activity of the scavengers used, the produced films have been subjected to permeability measurements. It was revealed that NaBH4 – though a strong reductive agent – didn't cause any degradation in matrix polymer but served as an ineffective oxygen scavenger as in the case of ZnO.

Journal of Epidemiology and Public Health Reviews, 2021

Purpose/Objectives: Since the start of the Syrian war, a significant population has moved out of ... more Purpose/Objectives: Since the start of the Syrian war, a significant population has moved out of the Syrian Republic into its neighborhood environs. Turkey has had a significant effect on its health system and society, as a significant new number has entered the Turkish society, increasingly using the Turkish healthcare system. Our aim is not only to numerically identify the size of the effect to the Turkish system, but to identify the domestic resources that allow the Turkish healthcare system and society to build up resilience against the significant health demand shock. The main objectives of this study is 1) To understand whether there is a complementarity between the earlier efforts in the Turkish health system and the current capabilities that is necessary to meet the Syrian Populations Health Needs. 2) To understand if the newly revamped Turkish Primary Healthcare System Provide a crucial buffer for the negative congestion effects that could have been caused by such a signifi...

Sosyoekonomi, 2019

This study investigates the case of repeated MRIs using data from Hacettepe University Hospitals.... more This study investigates the case of repeated MRIs using data from Hacettepe University Hospitals. Results indicate that almost 34% of MRI consultations have to be repeated within the same year due to suboptimal quality that hinders correct assessment and diagnosis. Suboptimal quality refers to; movement artefacts, use of wrong scan technique or sequence, inexperienced reader and/or shortened time intervals. In fact, almost 30% of those repetitions result in a change in diagnosis. Results suggest that the probability of repetition is higher among women and children.

The World Bank Economic Review

This study explores the impact of the arrival of Syrian refugees in Turkey on access to health-ca... more This study explores the impact of the arrival of Syrian refugees in Turkey on access to health-care resources and subsequent changes in infectious disease rates among native children. Employing a distance-based instrument, it finds that native children living in regions that received large inflows of Syrian refugees experienced an increase in their risk of catching an infectious disease compared to children in less affected regions. In contrast, there is no evidence of significant changes in the incidences of noninfectious diseases such as diabetes, cancer, or anemia. The findings also reveal that the number of health-care professionals and hospital beds per capita declined in provinces that received large refugee inflows. This study also documents a decrease in native children’s probability of being fully vaccinated in provinces that received large refugee inflows. Although contact with potentially infected refugees may increase disease spread among natives, the migration-induced s...

International Journal of Health Policy and Management, 2022

This study aims to investigate the determinants of the quality MRI in the Turkish healthcare syst... more This study aims to investigate the determinants of the quality
MRI in the Turkish healthcare system. The analysis is done
by analysing the referred cases to a major university radiology
department in Turkey, and matching the hospital and MRI
use characteristics of the source institutions, where the original
MRI was taken. Quality of MRI was measured by specialist
radiologists. The resulting quality was analysed by gender
and imaging area characteristics, source institutional quality,
MRI use statistics in source institution and MRI machine use
inclination of the source institution. Chi-square and logistic
regression were conducted, with regional fixed effects.
In the largest dataset, the highest quality institutions have
significantly higher average expected MRI quality compared
to one level beneath them (0.74 vs. 0.63) (P = 0.02), there is
also a significant MRI quality difference between the second
highest level of institution, and the third and the fourth
(0.63–0.54). Smaller (<0.1) but significant quality difference
(P = 0.05) exists for institutions with the lowest two quality
levels. In the smaller dataset, with data only from the lowest
two institutional quality groups, with a finer institutional
quality grading, differences in institutional quality is again
found to be a significant driver of MRI quality (P = 0.035).

Journal of Public Health, 2022

Aim Since 2011, the conflict in Syria has led to the migration of 5.6 million refugees, mainly to... more Aim Since 2011, the conflict in Syria has led to the migration of 5.6 million refugees, mainly to neighbouring countries. By the start of 2019, over 3.5 million people had moved to Turkey to seek safety, meaning that Turkey is hosting the majority of these refugees. Most of them are today settled in urban and peri-urban locations. A large part of the health services of these populations had been cut before their move, leaving a significant population that had been unprotected and under-provided for. The Turkish health system has provided a cost-free way for these populations to use health services, especially public health services at the primary and secondary levels. The objective of this study was to identify the size and the geography of the health shock as a result of the Syrian influx, starting in 2011. The resulting health effects of the refugee integration and the resilience of the health system are also assessed. Subject and methods We investigated the medical treatment given in public hospitals for the Syrian population for the years 2012-2014, at the primary and secondary health levels. We investigated 10,444,290 cases of health visits, 7,211,342 of them occurring at the secondary level and representing more than 70% of total applications. The overall coverage of the health system for the Syrian population is estimated to be 64%, with 115,000 live-births among Syrian refugees occurring in the same time period. Results Since the influx of Syrian refugees, there has been a considerable shock to the regional part of the Turkish health system located closest to the Syrian border. From the Syrian refugee point of view, no significant overcrowding or lowered quality effect was observed in the health system. The Syrian refugee's health demand was observed to be different from that of the Turkish average, as this population's unique vulnerabilities and access evolution came to the fore. However, significant convergence was then observed in the health demand, as urgent needs were converted into more routine health requirements over time. Conclusion This initial investigation of the Turkish health system after the Syrian integration underlies the case for a significant resilience being shown, especially in areas where it has been most severely tested.

Abstract: This dissertation formulates the situation under which differential migration waves of ... more Abstract: This dissertation formulates the situation under which differential migration waves of the genders to cities, coupled with potential wealth imbalances, can create an environment that is conducive to the spread of HIV. The model of the marital market and ...

New Perspectives on Turkey, 2021

Our study plans to quantify the effect of higher temperatures on different critical Turkish healt... more Our study plans to quantify the effect of higher temperatures on different critical Turkish health outcomes mainly to chart future developments and to identify locations in Turkey that may be potential vulnerable hotspots. The general structure of the temperature mortality function was estimated with different fixed-level effects, with a specific focus on the mortality effect of maximum apparent temperature. Regional models were fitted to pinpoint the thresholds where the temperature–mortality relation changes, thus investigating whether the thresholds are determined nationally or regionally. The future patterns were estimated by extrapolating from future temperature trends: analyzing possible future mortality trends under the restricting assumption of minimal acclimation. Using the fixed effect regression structure, social and developmental variables acting as heat effect modifiers were also identified. In the largest dataset, the initial fixed effect regression specification suppo...

Ankara Üniversitesi SBF Dergisi, 2014

Piketty’nin "21. Yuzyilda Sermaye" isimli gelir ve zenginligin uc asirdak gelisimini in... more Piketty’nin "21. Yuzyilda Sermaye" isimli gelir ve zenginligin uc asirdak gelisimini inceledigi calismasi ve Piketty’nin kendisi bu konuda yazan iktisatcilar tarafindan bir fenomen olarak degerlendiriliyor. Bizce bu calismayi ve yazari bir fenomen olarak gormedeki temel sikinti (fenomenin kelime anlami aciklanamayacak yetkinlikte ve zenginlikte), bu calismanin oncesindeki calismalarin ve tartismalarin, bu tartismalarda Piketty’nin aldigi aktif pozisyonlarin, ve bu tartismalarin Piketty’nin calismasindaki belirleyici ve aciklayici etkisinin gozden kacirilmasi. Ote yandan kitaba yonelik ozellikle ana akim iktisatcilarin ve medyanin tepkisi beklenmedik bir fenomen olarak ele alinabilir ve kuskusuz bu tepkide 2008-9 krizinin modern iktisada ve gunumuz ana akim iktisatcilarinin onulmaz kendine guvenine vurdugu darbenin oynadigi rol goz onune alinmalidir. Ancak kitabin ve yazarin gordugu ragbeti kitabin ve yazarin ozgul degerinden ayirirsak calismanin kendisiyle ilgili daha anlamli sonuclara ulasabilecegimizi dusunuyoruz. Kitabin fenomen olarak gorulmesinin bir sebebi butun iktisadi calismalari biricik ve bireysel bir uretimin sonucu olarak gorme istegimiz ve bu yondeki egilimimizse, bir diger sebebi de iktisadi yazina 2008-9 krizinden oncesi ve sonrasi diye bakmamiz, ve Piketty'nin eserinin 2008 oncesinde bu konuda yazilmis yazilar ve yapilmis calismalarla organik bagini gozden kacirmamizdir. Oysa 2008-9 kuresel krizi ne Piketty’nin calismalarini ve vardigi onemli teorik ve pratik sonuclari etkilemistir, ne de Piketty’nin bu krizin olusumu ve gelisimi konusunda soyleyecek cigir acici ve yenilikci bir sozu vardir. Hatta genelde cok etkileyici bir dil ve uslupla yazilmis “21. Yuzyilda Sermaye”’in bizce en az etkileyici kisimlari 2008-9 krizine ayrilmis bolumleridir (s.472).

Turkish Studies, 2016

ABSTRACT This study offers a comprehensive approach to spatial analysis of parliamentary election... more ABSTRACT This study offers a comprehensive approach to spatial analysis of parliamentary elections in Turkey since 2002. Using advanced spatial models, we find that electoral competitiveness and concentration mostly stabilized in the Western subprovinces whereas they are still in flux in the Eastern and Southern regions. There is an increasing level of geographically dependent concentration and competitiveness in recent elections, particularly in the 2015 elections (June and November). Our analyses also show that while the ruling AKP party has become the party of all regions, its competitors (CHP, MHP, and HDP) exhibit a narrowing geographical appeal.

This study offers a comprehensive approach to spatial analysis of parliamentary elections in Turk... more This study offers a comprehensive approach to spatial analysis of parliamentary
elections in Turkey since 2002. Using advanced spatial models, we find that
electoral competitiveness and concentration mostly stabilized in the Western
subprovinces whereas they are still in flux in the Eastern and Southern
regions. There is an increasing level of geographically dependent
concentration and competitiveness in recent elections, particularly in the 2015
elections (June and November). Our analyses also show that while the ruling
AKP party has become the party of all regions, its competitors (CHP, MHP, and
HDP) exhibit a narrowing geographical appeal.

Where does Turkey's performance in the health dimension of the Preston Curve stand with regard to... more Where does Turkey's performance in the health dimension of the Preston Curve stand with regard to comparable countries on the development ladder? When one observes the chronological progression of health and wealth values embedded in the Preston Curve for developing countries, one sees a near monotonic increase across the board, with only a very small number of downwardly mobile countries. In the face of this near-universal increase in health and wealth values, it is necessary to adopt a more comparative perspective in order to situate the Turkish state's choices and performance within the general story playing out for developing countries in the second half of the 20th century. Utilizing just such a comparative framework, this article uses China's experience between 1960 and 2010 as an alternative through which to understand Turkey's development experience.

Fiscaoeconomia

BRILL eBooks, Nov 16, 2022

Journal of Public Health, 2022

The International Journal of Health Planning and Management, 2021

New Perspectives on Turkey, 2018

International Polymer Processing, 2012

Journal of Epidemiology and Public Health Reviews, 2021

Sosyoekonomi, 2019

The World Bank Economic Review

International Journal of Health Policy and Management, 2022

This study aims to investigate the determinants of the quality MRI in the Turkish healthcare syst... more This study aims to investigate the determinants of the quality
MRI in the Turkish healthcare system. The analysis is done
by analysing the referred cases to a major university radiology
department in Turkey, and matching the hospital and MRI
use characteristics of the source institutions, where the original
MRI was taken. Quality of MRI was measured by specialist
radiologists. The resulting quality was analysed by gender
and imaging area characteristics, source institutional quality,
MRI use statistics in source institution and MRI machine use
inclination of the source institution. Chi-square and logistic
regression were conducted, with regional fixed effects.
In the largest dataset, the highest quality institutions have
significantly higher average expected MRI quality compared
to one level beneath them (0.74 vs. 0.63) (P = 0.02), there is
also a significant MRI quality difference between the second
highest level of institution, and the third and the fourth
(0.63–0.54). Smaller (<0.1) but significant quality difference
(P = 0.05) exists for institutions with the lowest two quality
levels. In the smaller dataset, with data only from the lowest
two institutional quality groups, with a finer institutional
quality grading, differences in institutional quality is again
found to be a significant driver of MRI quality (P = 0.035).

Journal of Public Health, 2022

New Perspectives on Turkey, 2021

Ankara Üniversitesi SBF Dergisi, 2014

Turkish Studies, 2016

SALGIN HALLERİ: COVID-19 VE TOPLUMSAL EŞİTSİZLİKLER, 2021

COVID-19, hızlı bulaş riski, yayılma kapasitesi ve dirençli varyantları sebebiyle tüm dünyayı kıs... more COVID-19, hızlı bulaş riski, yayılma kapasitesi ve dirençli varyantları sebebiyle tüm dünyayı kısa sürede etkisi altına aldı. Bu beklenmedik ve endişe verici gelişme, küresel ticaret ve ulaşım ağlarındaki yoğunluk, siyasal öngörüsüzlük, sağlık hizmetleri ve altyapısındaki yetersizlikler gibi faktörlerin eklenmesiyle toplumsal hayatın her alanında giderek derinleşen bir krize dönüştü. Sadece dünyanın her köşesinden milyonlarca insanın yaşamını yitirmesine yol açmadı. Küresel ölçekte yaşanan istihdam kaybı, olağanüstü hâl kapsamında uygulanan sokağa çıkma yasağı, seyahat engeli gibi kısıtlamalar ve aksayan eğitim faaliyetleri milyarlarca insanın hayatına ket vurdu. Hal böyleyken, salgını kontrol altına alabilmenin yollarını araştırmak kamu sağlığı açısından ne kadar önemliyse, salgının sosyo-politik ve ekonomik alandaki tezahürlerini sorgulamak da bu süreçte ortaya çıkan ve pekişen toplumsal eşitsizlikleri anlamak açısından o kadar önemli. Salgın Halleri: COVID-19 ve Toplumsal Eşitsizlikler, salgının bir anda ve tüm çıplaklığıyla ortaya saçtığı bu çok katmanlı eşitsizlikleri mercek altına alıyor.