Evidence map›Paper›PMID 27499165›Full record

ArticleJournal of preventive medicine and public health = Yebang Uihakhoe chi2016

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

Abstract read
In one paragraph

Article in Journal of preventive medicine and public health = Yebang Uihakhoe chi, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed.

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  16. Evaluation of Geographic Indices Describing Health Care Utilization.Journal of preventive medicine and public health = Yebang Uihakhoe chi · 2017
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Agnus M KimDepartment of Health Policy and Management, Seoul National University College of Medicine, Seoul, Korea.
Jong Heon ParkDepartment of Health Policy and Management, Seoul National University College of Medicine, Seoul, Korea.
Sungchan KangDepartment of Health Policy and Management, Seoul National University College of Medicine, Seoul, Korea.
Kyosang HwangDepartment of Health Policy and Management, Seoul National University College of Medicine, Seoul, Korea.
Taesik LeeDepartment of Health Policy and Management, Seoul National University College of Medicine, Seoul, Korea.
Yoon KimDepartment of Health Policy and Management, Seoul National University College of Medicine, Seoul, Korea.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesWe 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.

methodsTo 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.

resultsCompared 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.

conclusionsGeographic 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.

Indexed as

Databases, FactualDelivery of Health CareHumansNational Health ProgramsOrganisation for Economic Co-Operation and DevelopmentRepublic of KoreaDelivery of health careSmall-area analysisUtilization

Identifiers

PMID27499165
PMCPMC4977766

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.