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A new method for estimating the prevalence of clonorchiasis in Korea: A proposal to replace arbitrary riverside sampling.

Abstract South Korea presently uses an arbitrary sampling method to monitor the prevalence of Clonorchis sinensis infection in the endemic areas of the country. However, the present method is not standardized and focuses primarily on individuals who reside nearest to the mainstream river. We propose a new sampling method that combines cluster sampling with proportionate quota sampling to ensure that the entire endemic area is accurately represented. We tested the new method in Okcheon-gun, South Korea, and determined that the C sinensis infection prevalence (8.9%) in 2013 was higher than that (6.9%) estimated in 2012 when the arbitrary method was used. Additionally, no difference was observed in the prevalence based on the distance from the riverside areas, including branches and creeks, between the areas <1 and >1 km away from the riversides. Therefore, health authorities should place equal emphasis on all regions within the endemic areas. Based on the findings, we recommend the following: the clonorchiasis prevalence rate must be measured using probability sampling, (clear guidelines on survey coverage should be provided to include the riverside areas and all areas nearby branch streams, and regional cohorts should be created for continuous monitoring of prevalence rates across the region.
PMID
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Authors

Mayor MeshTerms

Clonorchis sinensis

Epidemiological Monitoring

Keywords
Journal Title medicine
Publication Year Start




PMID- 28353615
OWN - NLM
STAT- MEDLINE
DA  - 20170329
DCOM- 20170406
LR  - 20170413
IS  - 1536-5964 (Electronic)
IS  - 0025-7974 (Linking)
VI  - 96
IP  - 13
DP  - 2017 Mar
TI  - A new method for estimating the prevalence of clonorchiasis in Korea: A proposal 
      to replace arbitrary riverside sampling.
PG  - e6536
LID - 10.1097/MD.0000000000006536 [doi]
AB  - South Korea presently uses an arbitrary sampling method to monitor the prevalence
      of Clonorchis sinensis infection in the endemic areas of the country. However,
      the present method is not standardized and focuses primarily on individuals who
      reside nearest to the mainstream river. We propose a new sampling method that
      combines cluster sampling with proportionate quota sampling to ensure that the
      entire endemic area is accurately represented. We tested the new method in
      Okcheon-gun, South Korea, and determined that the C sinensis infection prevalence
      (8.9%) in 2013 was higher than that (6.9%) estimated in 2012 when the arbitrary
      method was used. Additionally, no difference was observed in the prevalence based
      on the distance from the riverside areas, including branches and creeks, between 
      the areas &lt;1 and &gt;1 km away from the riversides. Therefore, health authorities
      should place equal emphasis on all regions within the endemic areas. Based on the
      findings, we recommend the following: the clonorchiasis prevalence rate must be
      measured using probability sampling, (clear guidelines on survey coverage should 
      be provided to include the riverside areas and all areas nearby branch streams,
      and regional cohorts should be created for continuous monitoring of prevalence
      rates across the region.
FAU - Jeong, Jin-Young
AU  - Jeong JY
AD  - aDepartment of Preventive Medicine, Okcheon-gun Public Health Center,
      Okcheon-gun, Chungcheongbuk-do bPublic Health Medical Service, Boramae Medical
      Center, Seoul National University College of Medicine, Seoul cInstitute of Health
      Policy and Management, Medical Research Center, Seoul National University, Seoul 
      dDivision of Malaria and Parasitic Diseases, National Institute of Health,
      Centers for Disease Control and Prevention, Cheongju, Chungcheongbuk-do
      eTaean-gun Hospitalized Public Health Center, Taeangun, Chungcheongnam-do fSeoul 
      National University College of Medicine, Seoul gDepartment of Nursing Science,
      Shinsung University, Dangjin-si, Chungcheongnam-do, South Korea.
FAU - Lee, Jin Yong
AU  - Lee JY
FAU - Chung, Byung-Suk
AU  - Chung BS
FAU - Choi, Younghyun
AU  - Choi Y
FAU - Alley, Allison Baer
AU  - Alley AB
FAU - Kim, Hyun Joo
AU  - Kim HJ
LA  - eng
PT  - Journal Article
PT  - Observational Study
PL  - United States
TA  - Medicine (Baltimore)
JT  - Medicine
JID - 2985248R
SB  - AIM
SB  - IM
MH  - Adult
MH  - Aged
MH  - Animals
MH  - Clonorchiasis/*epidemiology
MH  - *Clonorchis sinensis
MH  - *Epidemiological Monitoring
MH  - Female
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Prevalence
MH  - Republic of Korea/epidemiology
MH  - Young Adult
PMC - PMC5380299
EDAT- 2017/03/30 06:00
MHDA- 2017/04/07 06:00
CRDT- 2017/03/30 06:00
AID - 10.1097/MD.0000000000006536 [doi]
AID - 00005792-201703310-00061 [pii]
PST - ppublish
SO  - Medicine (Baltimore). 2017 Mar;96(13):e6536. doi: 10.1097/MD.0000000000006536.

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