Journal of Preventive Medicine and Public Health

Yong Hwan Lee

8 Articles

The Prevalence of High Myopia in 19 Year-Old Men in Busan, Ulsan and Gyeongsangnam-Do.: Sang Joon Lee, Sang Hwa Urm, Byeng Chul Yu, Hae Sook Sohn, Young Seoub Hong, Maeng Seok Noh, Yong Hwan Lee; J Prev Med Public Health. 2011;44(1):56-64.; DOI: https://doi.org/10.3961/jpmph.2011.44.1.56

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OBJECTIVES
The purpose of this study was to estimate the prevalence and correlated factors of high myopia in 19 year-old men in Southeast Korea. METHODS: This retrospective study was based on the medical checkup data of conscription during 2005. The study subjects were 19 years old men in Busan, Ulsan and Gyeongsangnam-do. The health checkup data of the conscripts consisted of noncycloplegic autorefraction test, the biometric data and social factors. To analyze the social and biometric effects, we classified the biometric factors into 4 or 5 groups and the social factors into 3 groups. High myopia was defined as a spherical equivalent of under -6.0 diopter. Data analysis was performed using the chi square test for trends and multiple logistic regression analysis. The SAS(version 9.1) program was used for all the analyses. RESULTS: The prevalence of high myopia was 12.39% (6256 / 50 508). The factors correlated with high myopia were the residence area (OR, 2.07; 95% CI, 1.77 to 2.4 for small city; OR, 2.01; 95% CI, 1.72 to 2.34 for metropolis; the reference group was rural area), academic achievement (OR, 1.43; 95% CI, 1.34 to 1.53 for students of 4-and 6-year-course university; the reference group was high school graduates & under) and blood pressure (OR, 1.54; 95% CI, 1.10 to 2.16 for hypertension; OR, 1.09; 95% CI, 1.02 to 1.17 for prehypertension; OR, 1.10; 95% CI, 1.01 to 1.20 for hypotension; the reference group was normal blood pressure). CONCLUSIONS: More than one tenth of the young men were high myopia as one of the risk factor for visual loss. Further studies on high myopia and its complications are needed to improve eye health in Southeast Korea.

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Dissecting the complex sex-based associations of myopia with height and weight
Yossy Machluf, Asaf Israeli, Eduardo Cohen, Yoram Chaiter, Eedy Mezer
Eye.2024; 38(8): 1485. CrossRef
Myopic Vascular Changes Revealed by Optical Tomography Angiography and Their Association with Myopic Fundus Manifestations
Yijia Xu, Weiming Yang, Lingling Niu, Xiaoying Wang, Xingtao Zhou, Meiyan Li
Ophthalmic Research.2023; : 1266. CrossRef
Evaluation of University of North Carolina OCT Index for Diagnosis of Early Glaucoma
Eunoo Bak, Ki Ho Park
Ophthalmology Glaucoma.2022; 5(5): 490. CrossRef
Prevalence of Refractive Error in School Children in Suining City of Sichuan Province, China: A School-Based Cross-Sectional Study
Linglin Liu, Heng Li, Zhijin Tang, Zaihong Huang, Xu Yang, Fahd Abd Algalil
Applied Bionics and Biomechanics.2022; 2022: 1. CrossRef
Clinical differences between toric intraocular lens (IOL) and monofocal intraocular lens (IOL) implantation when myopia is determined as target refraction
Da Young Shin, Ho Sik Hwang, Hyun Seung Kim, Man Soo Kim, Eun Chul Kim
BMC Ophthalmology.2021;[Epub] CrossRef
Myopic maculopathy: Current status and proposal for a new classification and grading system (ATN)
Jorge Ruiz-Medrano, Javier A. Montero, Ignacio Flores-Moreno, Luis Arias, Alfredo García-Layana, José M. Ruiz-Moreno
Progress in Retinal and Eye Research.2019; 69: 80. CrossRef
Visual acuity of young men in China
Yi Wan, Xun Jiang, Jie-Qiong Zhang, Jin-Peng Zhang, Ning-Xu Chen, Yang Cao, Yong-Yong Xu, Lei Shang
Medicine.2019; 98(1): e13966. CrossRef
Peripheral retinal changes in highly myopic young Asian eyes
David Z. Chen, Victor Koh, Marcus Tan, Colin S. Tan, Gerard Nah, Liang Shen, Mayuri Bhargava, Ching‐Yu Cheng, Paul Zhao, Tien Yin Wong, Seang‐Mei Saw
Acta Ophthalmologica.2018;[Epub] CrossRef
The Location of the Deepest Point of the Eyeball Determines the Optic Disc Configuration
Yong Chan Kim, Younhea Jung, Hae-Young Lopilly Park, Chan Kee Park
Scientific Reports.2017;[Epub] CrossRef
Myopic Maculopathy and Optic Disc Changes in Highly Myopic Young Asian Eyes and Impact on Visual Acuity
Victor Koh, Colin Tan, Pei Ting Tan, Marcus Tan, Vinay Balla, Gerard Nah, Ching-Yu Cheng, Kyoko Ohno-Matsui, Mellisa M.H. Tan, Adeline Yang, Paul Zhao, Tien Yin Wong, Seang-Mei Saw
American Journal of Ophthalmology.2016; 164: 69. CrossRef
Choroidal thickness does not predict visual acuity in young high myopes
Preeti Gupta, Carol Y. Cheung, Seang‐Mei Saw, Victor Koh, Mellisa Tan, Adeline Yang, Paul Zhao, Chui Ming Gemmy Cheung, Tien Yin Wong, Ching‐Yu Cheng
Acta Ophthalmologica.2016;[Epub] CrossRef
Differences in Prevalence of Refractive Errors in Young Asian Males in Singapore between 1996–1997 and 2009–2010
Victor Koh, Adeline Yang, Seang Mei Saw, Yiong Huak Chan, Sheng Tong Lin, Mellisa Mei Hui Tan, Frederick Tey, Gerard Nah, M. Kamran Ikram
Ophthalmic Epidemiology.2014; 21(4): 247. CrossRef
Myopia and international educational performance
Ian G Morgan, Kathryn A Rose
Ophthalmic and Physiological Optics.2013; 33(3): 329. CrossRef
Annual Changes in Refractive Errors and Ocular Components before and after the Onset of Myopia in Chinese Children
Fan Xiang, Mingguang He, Ian G. Morgan
Ophthalmology.2012; 119(7): 1478. CrossRef
Optic Disc Torsion Direction Predicts the Location of Glaucomatous Damage in Normal-Tension Glaucoma Patients with Myopia
Hae-Young L. Park, Kook Lee, Chan Kee Park
Ophthalmology.2012; 119(9): 1844. CrossRef
Epidemiologic Characteristics of Intraocular Pressure in the Korean and Mongolian Populations: The Healthy Twin and the GENDISCAN Study
Mi Kyeong Lee, Sung-Il Cho, Ho Kim, Yun-Mi Song, Kayoung Lee, Jong-Il Kim, Dong-Myung Kim, Tae-Young Chung, Youn Sic Kim, Jeong-Sun Seo, Don-Il Ham, Joohon Sung
Ophthalmology.2012; 119(3): 450. CrossRef
Refractive Surgery for Accommodative Esotropia: Past, Present, and Future
Amy K. Hutchinson
European Journal of Ophthalmology.2012; 22(6): 871. CrossRef

The Association of Central Obesity with Type 2 Diabetes among Koreans according to the Serum Gamma-Glutamyltransferase Level: Korean Genome and Epidemiology Study.: Ji Yeon Shin, Jun Hyun Hwang, Jin Young Jeong, Sung Hi Kim, Jai Dong Moon, Sang Chul Roh, Young Wook Kim, Yangho Kim, Jong Han Leem, Young Su Ju, Young Seoub Hong, Eun Hee Ha, Yong Hwan Lee, Duk Hee Lee, Dong Hyun Kim; J Prev Med Public Health. 2009;42(6):386-391.; DOI: https://doi.org/10.3961/jpmph.2009.42.6.386

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Abstract PDF

OBJECTIVES
This cross-sectional study was performed to examine if the serum gamma-glutamyltransferase (GGT) level that is within its normal range is associated with the risk of type 2 diabetes and if the association between the waist hip ratio (WHR) and type 2 diabetes is different depending on the serum GGT levels. METHODS: The study subjects were 23,436 persons aged 40 years or older and who participated in regular health check-ups at 11 hospitals (males: 5,821, females: 17,615). The gender-specific quintiles of the serum GGT and WHR were used to examine the associations with type 2 diabetes. RESULTS: The serum GGT levels within their normal range were positively associated with type 2 diabetes only in women. The adjusted odds ratios (ORs) were 1.0, 1.0, 1.4, 2.1, and 2.5 according to the quintiles of the serum GGT (p(trend)<0.01). The WHR was more strongly associated with the prevalence of diabetes among the women with a high-normal serum GGT level as compared with those with a low-normal serum GGT level (p for interaction=0.02). For example, the adjusted ORs for women with a low normal serum GGT level were 1.0, 1.2, 1.5, 2.2, and 2.4 according to the quintiles of the WHR, while those figures were 1.0, 2.4, 3.6, 5.0, and 8.3 among the women with a high normal serum GGT level. However, in men, the serum GGT was very weakly associated with type 2 diabetes and the association between the WHR and type 2 diabetes was not different depending on the serum GGT level. CONCLUSIONS: Serum GGT within its normal range was positively associated with type 2 diabetes, and central obesity was more strongly associated with the prevalence of type 2 diabetes when the serum GGT level was high-normal. However, these associations were observed only in women, which is different from the previous findings. The stronger relation between central obesity and type 2 diabetes among women with a high-normal serum GGT level can be useful for selecting a group that is at high risk for type 2 diabetes irregardless of whatever the underlying mechanism is.

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Serum gamma-glutamyl transferase and risk of type 2 diabetes in the general Korean population: a Mendelian randomization study
Youn Sue Lee, Yoonsu Cho, Stephen Burgess, George Davey Smith, Caroline L. Relton, So-Youn Shin, Min-Jeong Shin
Human Molecular Genetics.2016; 25(17): 3877. CrossRef
Different associations between obesity and impaired fasting glucose depending on serum gamma-glutamyltransferase levels within normal range: a cross-sectional study
Nam Soo Hong, Jeong-Gook Kim, Yu-Mi Lee, Hyun-Woo Kim, Sin Kam, Keon-Yeop Kim, Ki-Su Kim, Duk-Hee Lee
BMC Endocrine Disorders.2014;[Epub] CrossRef
Endobiogeny: A Global Approach to Systems Biology (Part 1 of 2)
Jean-Claude, Lapraz, Kamyar M. Hedayat
Global Advances in Health and Medicine.2013; 2(1): 64. CrossRef

The Relationship between ACE I/D Polymorphism and HDL Cholesterol.: Chang Hun You, Young Seoub Hong, Jong Young Kwak, Na Young Kim, Mee Sook Roh, Kap Yeol Jung, Yong Hwan Lee, Jung Man Kim, Joon Youn Kim; J Prev Med Public Health. 2006;39(6):505-510.

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Abstract PDF: OBJECTIVES
The purpose of this study is to evaluate the association of the angiotensin converting enzyme (ACE) insertion/deletion (I/D) polymorphism with cardiovascular disease risk factors. METHODS: Out of a total of 608 middle-aged adults who visited local health centers, 424 subjects (104 male, 320 female) who had not been diagnosed with hypertension, diabetes mellitus, or hyperlipidemia were included in this study. ACE genotypes were determined in all subjects by polymerase chain reaction methods. RESULTS: Statistical differences in high-density lipoprotein (HDL) cholesterol levels according to ACE genotype were observed using ANOVA (p<0.05), but no differences were found in other cardiovascular risk factors. Specifically, men with the DD and DI genotypes had significantly lower HDL cholesterol levels than those with the II genotype based on the LSD multi-comparison test (p<0.05). CONCLUSIONS: In men, the D-allele of the ACE I/D polymorphism was significantly associated with reduced HDL cholesterol levels. In the future, larger studies are needed to confirm this relationship between ACE I/D polymorphism and HDL cholesterol.; Summary

The Relationship between Regional Material Deprivation and the Standardized Mortality Ratio of the Community Residents Aged 15-64 in Korea.: Baek Geun Jeong, Kap Yeol Jung, Joon Youn Kim, Ok Ryun Moon, Yong Hwan Lee, Young Seoub Hong, Tae Ho Yoon; J Prev Med Public Health. 2006;39(1):46-52.

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Abstract PDF: OBJECTIVES
This study was performed to investigate the relationship between regional material deprivation and the standardized mortality ratios(SMRs) of community residents aged 15-64 in Korea. METHODS: SMRs were investigated using the registered death data from 1995 to 2000 that was obtained from the Korean National Statistics Office with the denominators being drawn from the 1995 to 2000 census. Material deprivation was measured using the Townsend score that was calculated from the 1995 to 2000 census. The relationship between the regional material deprivation and the SMRs of the community residents aged 15-64 was investigated by using ANOVA, Spearman's rank correlation analysis and Pearson's correlation analysis. The trends in mortality inequality were investigated using the concentration index. RESULTS: On the ANOVA, the SMRs of the men and women residents in the least deprived areas were the smallest and those in the most deprived areas were the largest. Spearman's rank correlation analysis, Pearson's correlation analysis and the concentration index revealed that significant positive relationships exist between the regional material deprivation and the SMRs of the community residents aged 15-64. CONCLUSIONS: This study suggests that there are mortality inequalities among the communities in Korea and part of this difference is due to the material deprivation of the community. Strategies aimed at reducing mortality inequalities among the communities will be needed to address economic inequalities. Further studies are needed to explore the mechanisms of how the regional deprivation influences on health and how the other factors of the community influence on the health of the community residents.; Summary

Exposed level of workers in the factory next to a led recycling factory.: Jin Ha Kim, Duk Hee Lee, Yong Hwan Lee; Korean J Prev Med. 1996;29(3):693-700.

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Abstract PDF: The purpose of this study was to determine whether workers at a factory next to a lead recycling factory in Pusan, were affected by lead contamination. The mean air lead concentration of lead recycling factory was 0.21mg/m3(TWA=0.05mg/m3). Thirty-nine male workers of Factory A, Cr. plating factory next to the lead recycling factory were exposed group and a comparison group, 62 male workers of Factory B were selected from another Cr. plating factory about 8.5km away from lead recycling factory. Air lead concentration of each workplace was checked for 4 times from August 5 to August 20 in 1995 by low volume air sampler. Each subject was interviewed about age, life-style, smoking, work history, and residence etc, and venous blood was drawn for lead measurement by graphite furnace atomic absorption spectrometry. We have observed that air lead concentration and blood lead concentration of Factory A was higher than Factory B(2.6 +/- 1.6 Vs. 1.2 +/- 0.2 microgram/m3, 14.9 +/- 1.6 Vs. 12.2 +/- 1.6 microgram/dl). We believe that other environmental lead sources such as transportation and residence did not affect air lead and blood lead concentration differences of both factory. We concluded that high air lead and blood lead concentration of Factory A were caused by lead contamination generated by the neighboring lead recycling factory.; Summary

Blood Lead Level and Intelligence among Children.: Duk Hee Lee, Yong Hwan Lee, Jin Ha Kim, In Geun Park, Tae Young Han, She Han Jang; Korean J Prev Med. 1995;28(2):373-385.

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Abstract PDF: The association between blood lead children and Intelligent Quotient(IQ) was investigated in a sample of l00 boys and girls aged 6-8 years from one primary school within an industrial area of Pusan. The trained undergraduates in school of public health administered an I.Q. test one by one. Parents answered a questionnaire on demographic, perinatal and socioeconomic variables. Atomic Absorbtion spectrophotometer was used to determine blood lead levels. The geometric mean of blood lead value was 7.99 microgram/dl. In total children, there was no significant relationship between blood lead level and I.Q. But in the children who were born of gestational age of less than 38 weeks, children with higher levels of blood lead performed more poorly on I.Q. test with correlation coefficient from -0.68 to -0.71. But, the children who were born of gestational age of 38 weeks and more were same as total children. These results suggest that exposure to low levels of lead in the children who were born premature probably may result in impaired intelligent development. But, we think that more profound study should be performed with sufficient numbers of subjects.; Summary

Neurobehavioral Change on the Lead Exposure Workersq.: In Geun Park, Duk Hee Lee, Yong Hwan Lee, Jin Ha Kim, She Han Jang; Korean J Prev Med. 1995;28(1):175-186.

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Abstract PDF: No abstract available.; Summary

A Survey on the Changes in Industrial Noisy Environment and Hearing loss of Workers.: Yong Hwan Lee; Korean J Prev Med. 1989;22(3):337-354.

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Abstract PDF: In order to evaluate the noisy environment and hearing loss of workers served in noisy working environment, the author investigated 212 manufacturing industries located in Ulsan Industrial District that could be observed for 3 successive years from 1986 to 1988. The obtained results were as follows: 1. There was increased tendency in the number of workers served in noisy working environment and that of examined of hearing loss for three years. 2. In the noise level of working environment, the number of industries less than 89dB(A) was increased every year, while more than 90dB(A) was in decreasing tendency. 3. Mean hearing loss by frequency was the most prominent in 4,000Hz, the level of hearing loss was in increasing tendency yearly, and that of left eat was higher than right ear in almost all type of industry. 4. In 1986, the level of hearing loss by type of industry was highest in manufacture of electronic and electronic, and followed by paper and plywood, and metal products in right ear; that was in the order of manufacture of electric and electronic, metal products and textile products in left ear. In 1987, that was in the order of manufacture of metal products, machinery and others in right ear, and metal products, machinery and food stuff in left ear in 1988, manufacture of others, food stuff and machinery in both ear. 5. In hearing loss by service duration, right ear of 5-9 years group was higher than that of less than 5 years in 1987, whereas in 1988, the longer in service duration, the higher in the level of hearing loss in both ear. 6. In 1986, 1987 and 1988, the prevalence rate of noise-induced hearing loss were showed increasing tendency as 0.4%, 0.8% and 1.5%, respectively, and manufacture of textile products was highest(1.0%) in 1986, machinery(1.2%) in 1987 and others(2.8%) in 1988. 7. The proportion of grade E in early loss index were 76.1%(1986), 78.2%(1987) and 80.5%(1988) in left ear, 75.9%(1986), 76.4%(1987) and 75.9%(1988) in right ear.; Summary

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