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Chang-Wook Nam 2 Articles
Spatial analysis between particulate matter and emergency room visits for conjunctivitis and keratitis
Jung-Youb Lee, Jung-Won Kim, Eun-Jung Kim, Mi-Young Lee, Chang-Wook Nam, In-Sung Chung
Ann Occup Environ Med 2018;30:41.   Published online June 11, 2018
DOI: https://doi.org/10.1186/s40557-018-0252-x
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background

The concentration of particulate matter in the air varies depending on the region because it is lightweight and generated from a variety of sources. To assess the relationship between particulate matter and eye disease, this study analyzes the concentration data obtained from spatial analysis of particulate matter and emergency visit data.

Methods

The study included 769 residents of Daegu, Korea who had visited an emergency room for the problem of conjunctivitis or keratitis. Concentrations of PM10 and other air pollutants were obtained from the Korean Ministry of the Environment. PM10 concentrations and the number of patients from each of 143 administrative dongs (sub-municipal level administrative units) of the city of Daegu were obtained using spatial analysis. The patient distribution and PM10 concentration were mapped for comparison, and their relationship was examined using scatter plot, regression analysis, and the independent sample t-test.

Results

The number of patients with conjunctivitis and keratitis was significantly higher in the regions of the top 20% areas than the bottom 20% areas in terms of PM10 concentration. The distribution of PM10 concentration and number of patients was visually similar on the map. The concentration of PM10 and the number of patients showed a dose–response relationship. When the concentrations of other air polluta9nts were controlled for, the numbers of conjunctivitis and keratitis patients were 0.04 per 1000 ER patients and 0.10 per 1000 ER patients, respectively.

Conclusion

As PM10 is associated with the prevalence of conjunctivitis and keratitis, measures to reduce particulate matter through environmental methods are needed.

Electronic supplementary material

The online version of this article (10.1186/s40557-018-0252-x) contains supplementary material, which is available to authorized users.


Citations

Citations to this article as recorded by  
  • Consequences of exposure to particulate matter on the ocular surface: Mechanistic insights from cellular mechanisms to epidemiological findings
    Phit Upaphong, Chanisa Thonusin, Ornpailin Wanichthanaolan, Nipon Chattipakorn, Siriporn C. Chattipakorn
    Environmental Pollution.2024; 345: 123488.     CrossRef
  • Mechanisms of PM10 Disruption of the Nrf2 Pathway in Cornea
    Mallika Somayajulu, Farooq S. Muhammed, Robert Wright, Sharon A. McClellan, Linda D. Hazlett
    International Journal of Molecular Sciences.2024; 25(7): 3754.     CrossRef
  • Impact of Airborne Exposure to PM10 Increases Susceptibility to P. aeruginosa Infection
    Sharon A. McClellan, Robert Wright, Farooq Muhammed, Linda D. Hazlett
    International Journal of Environmental Research and Public Health.2024; 21(6): 722.     CrossRef
  • Air Pollution and Meteorological Conditions Significantly Associated With Vernal Keratoconjunctivitis Exacerbations
    Eran Levanon, Ido Peles, Michal Gordon, Lena Novack, Erez Tsumi
    Investigative Opthalmology & Visual Science.2023; 64(10): 37.     CrossRef
  • Clinical Impact of Ambient Particulate Matters on Dry Eye Disease
    Chang Hwan Kim, Yong Woo Ji
    Annals of Optometry and Contact Lens.2023; 22(4): 125.     CrossRef
  • Airborne Exposure of the Cornea to PM10 Induces Oxidative Stress and Disrupts Nrf2 Mediated Anti-Oxidant Defenses
    Mallika Somayajulu, Sharon A. McClellan, Robert Wright, Ahalya Pitchaikannu, Bridget Croniger, Kezhong Zhang, Linda D. Hazlett
    International Journal of Molecular Sciences.2023; 24(4): 3911.     CrossRef
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    Steven H. Rauchman, Brandon Locke, Jacqueline Albert, Joshua De Leon, Morgan R. Peltier, Allison B. Reiss
    Vision.2023; 7(2): 32.     CrossRef
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    Mallika Somayajulu, Sharon A. McClellan, Farooq Muhammed, Robert Wright, Linda D. Hazlett
    Frontiers in Cellular and Infection Microbiology.2023;[Epub]     CrossRef
  • The effect of social determinants of health on severity of microbial keratitis presentation at a tertiary eye care hospital in Southern India
    Anvesh Annadanam, Patrice M Hicks, Ming-Chen Lu, Mercy Pawar, Prabhleen Kochar, Suvitha Selvaraj, Dhanya Kuppuraj, Chetan Rathod, Rekha Sravya Muppala, Smriti Gaur, Abinaya Krishnan, SR Sumithra, Maria A Woodward, N Venkatesh Prajna
    Indian Journal of Ophthalmology.2023; 71(6): 2448.     CrossRef
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    Yee Ling Wong, Shiao Wei Wong, Darren S.J. Ting, Alankrita Muralidhar, Sagnik Sen, Olivia Schaff, Hannah Istre-Wilz, Barbara Erny
    The Journal of Climate Change and Health.2023; : 100296.     CrossRef
  • Association between air pollution and emergency room visits for eye diseases and effect modification by temperature in Beijing, China
    Wanzhou Wang, Wenlou Zhang, Hongxia Ge, Baiqi Chen, Jingjing Zhao, Jun Wu, Zefeng Kang, Xinbiao Guo, Furong Deng, Qingbian Ma
    Environmental Science and Pollution Research.2022; 29(15): 22613.     CrossRef
  • Correlation between Exposure to Fine Particulate Matter (PM2.5) during Pregnancy and Congenital Anomalies: Its Surgical Perspectives
    Eun-jung Koo, Jin-Gon Bae, Eun Jung Kim, Yong-Hoon Cho
    Journal of Korean Medical Science.2021;[Epub]     CrossRef
  • The burden of acute conjunctivitis attributable to ambient particulate matter pollution in Singapore and its exacerbation during South-East Asian haze episodes
    Joel Aik, Rae Chua, Natasha Jamali, Elaine Chee
    Science of The Total Environment.2020; 740: 140129.     CrossRef
  • Epidemiological aspects of allergic conjunctivitis
    Dai Miyazaki, Kazumi Fukagawa, Shigeki Okamoto, Atsuki Fukushima, Eiichi Uchio, Nobuyuki Ebihara, Jun Shoji, Kenichi Namba, Yumiko Shimizu
    Allergology International.2020; 69(4): 487.     CrossRef
  • Dry eye symptoms in offices and deteriorated work performance – A perspective
    Peder Wolkoff
    Building and Environment.2020; 172: 106704.     CrossRef
  • Airborne Particulates Affect Corneal Homeostasis and Immunity
    Mallika Somayajulu, Sandamali Ekanayaka, Sharon A. McClellan, Denise Bessert, Ahalya Pitchaikannu, Kezhong Zhang, Linda D. Hazlett
    Investigative Opthalmology & Visual Science.2020; 61(4): 23.     CrossRef
  • Air pollution significantly associated with severe ocular allergic inflammatory diseases
    Dai Miyazaki, Kazumi Fukagawa, Atsuki Fukushima, Hiroshi Fujishima, Eiichi Uchio, Nobuyuki Ebihara, Jun Shoji, Etsuko Takamura, Kenichi Namba, Yuichi Ohashi, Shigeki Okamoto, Yoshiyuki Satake, Hiroshi Ohtsu, Yumiko Shimizu, Yoshitsugu Inoue
    Scientific Reports.2019;[Epub]     CrossRef
  • Global Associations of Air Pollution and Conjunctivitis Diseases: A Systematic Review and Meta-Analysis
    Renchao Chen, Jun Yang, Chunlin Zhang, Bixia Li, Stéphanie Bergmann, Fangfang Zeng, Hao Wang, Boguang Wang
    International Journal of Environmental Research and Public Health.2019; 16(19): 3652.     CrossRef
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Minnesota multiphasic personality inventory as related factor for post traumatic stress disorder symptoms according to job stress level in experienced firefighters: 5–year study
In-Sung Chung, Mi-Young Lee, Sung-Won Jung, Chang-Wook Nam
Ann Occup Environ Med 2015;27:16.   Published online June 5, 2015
DOI: https://doi.org/10.1186/s40557-015-0067-y
AbstractAbstract PDFPubReaderePub
Objectives

As first responders to an increasing number of natural and manmade disasters, active-duty firefighters are at increased risk for physical and psychiatric impairment as reflected by high rates of posttraumatic stress disorder (PTSD). Because little is known about related factor with PTSD according to job stress level among firefighters, we assessed utility of the Minnesota Multiphasic Personality Inventory (MMPI) using 5-year medical surveillance.

Methods

Data were analyzed from 185 male firefighters without psychiatric disease history and who at assessments in 2006 and 2011 completed all questionnaires on personal behaviors (including exercise, drinking and smoking habits) and job history (including job duration and department). MMPI, Events Scale-Revised-Korean version (IES-R-K) and Korean Occupational Stress Scale-Short Form (KOSS-SF) were used to screen for personality trait, PTSD symptom presence and job stress level, respectively. IES-R-K subgroups were compared using two-sample t- and χ2 tests, and factors influencing IES-R-K according to KOSS-SF were determined using uni- and multivariate logistic regression.

Results

Mean age and job duration were higher in PTSD-positive than negative groups. In multivariate analysis, increased PTSD risk was associated with: job duration (Odds ratio (OR) = 1.064, 95 % CI 1.012–1.118) for firefighters overall; masculinity-femininity (OR = 5.304, 95 % CI 1.191–23.624) and job duration (OR = 1.126, 95 % CI 1.003–1.265) for lower job stress level; and social introversion (OR = 3.727, 95 % CI 1.096–12.673) for higher job stress level.

Conclusions

MMPI relates with PTSD according to job stress level among experienced firefighters. Masculinity-femininity and social introversion were the strongest related factor for PTSD symptom development in low and high job stress levels, respectively.


Citations

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