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1 "Taesik Lee"
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Original Article
The Effect of Geographic Units of Analysis on Measuring Geographic Variation in Medical Services Utilization
Agnus M. Kim, Jong Heon Park, Sungchan Kang, Kyosang Hwang, Taesik Lee, Yoon Kim
J Prev Med Public Health. 2016;49(4):230-239.   Published online July 14, 2016
DOI: https://doi.org/10.3961/jpmph.16.034
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  • 18 Crossref
AbstractAbstract PDFSupplementary Material
Objectives
We aimed to evaluate the effect of geographic units of analysis on measuring geographic variation in medical services utilization. For this purpose, we compared geographic variations in the rates of eight major procedures in administrative units (districts) and new areal units organized based on the actual health care use of the population in Korea.
Methods
To compare geographic variation in geographic units of analysis, we calculated the age–sex standardized rates of eight major procedures (coronary artery bypass graft surgery, percutaneous transluminal coronary angioplasty, surgery after hip fracture, knee-replacement surgery, caesarean section, hysterectomy, computed tomography scan, and magnetic resonance imaging scan) from the National Health Insurance database in Korea for the 2013 period. Using the coefficient of variation, the extremal quotient, and the systematic component of variation, we measured geographic variation for these eight procedures in districts and new areal units.
Results
Compared with districts, new areal units showed a reduction in geographic variation. Extremal quotients and inter-decile ratios for the eight procedures were lower in new areal units. While the coefficient of variation was lower for most procedures in new areal units, the pattern of change of the systematic component of variation between districts and new areal units differed among procedures.
Conclusions
Geographic variation in medical service utilization could vary according to the geographic unit of analysis. To determine how geographic characteristics such as population size and number of geographic units affect geographic variation, further studies are needed.
Summary

Citations

Citations to this article as recorded by  
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    BMJ Paediatrics Open.2024; 8(1): e002377.     CrossRef
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    Dong-Gyun Sohn, Jaehong Yoon, Jun-Soo Ro, Ja-Ho Leigh
    Journal of Korean Medical Science.2023;[Epub]     CrossRef
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    Journal of Surgical Research.2022; 275: 115.     CrossRef
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    Scientific Reports.2020;[Epub]     CrossRef
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    International Journal of Environmental Research and Public Health.2020; 17(4): 1244.     CrossRef
  • A spatial analysis of geographic variation and factors associated with hospitalization for bacterial pneumonia in Korea
    Agnus M. Kim, Sungchan Kang, Jong Heon Park, Tae Ho Yoon, Yoon Kim
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    Agnus M. Kim, Jong Heon Park, Tae Ho Yoon, Yoon Kim
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  • Factors associated with the rates of coronary artery bypass graft and percutaneous coronary intervention
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    BMC Cardiovascular Disorders.2019;[Epub]     CrossRef
  • Geographic variation in health insurance benefits in Qianjiang District, China: a cross-sectional study
    Yue Wu, Liang Zhang, Xuejiao Liu, Ting Ye, Yongfei Wang
    International Journal for Equity in Health.2018;[Epub]     CrossRef
  • Epidemiology of pathogens and antimicrobial resistanceof catheter-associated urinary tract infections in intensivecare units: A systematic review and meta-analysis
    Dan Peng, Xuan Li, Pin Liu, Mei Luo, Shuai Chen, Kewen Su, Zhongshuang Zhang, Qiang He, Jingfu Qiu, Yingli Li
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  • Regional variation in healthcare spending and mortality among senior high-cost healthcare users in Ontario, Canada: a retrospective matched cohort study
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    BMC Geriatrics.2018;[Epub]     CrossRef
  • Regional Differences in Years of Life Lost in Korea from 1997 to 2015
    Dun-Sol Go, Young-Eun Kim, Munkhzul Radnaabaatar, Yunsun Jung, Jaehun Jung, Seok-Jun Yoon
    Journal of Korean Medical Science.2018;[Epub]     CrossRef
  • A framework for the identification and classification of homogeneous socioeconomic areas in the analysis of health care variation
    Ludovico Pinzari, Soumya Mazumdar, Federico Girosi
    International Journal of Health Geographics.2018;[Epub]     CrossRef
  • Senior high-cost healthcare users’ resource utilization and outcomes: a protocol of a retrospective matched cohort study in Canada
    Sergei Muratov, Justin Lee, Anne Holbrook, J Michael Paterson, Jason Robert Guertin, Lawrence Mbuagbaw, Tara Gomes, Wayne Khuu, Priscila Pequeno, Andrew P Costa, Jean-Eric Tarride
    BMJ Open.2017; 7(12): e018488.     CrossRef

JPMPH : Journal of Preventive Medicine and Public Health