Evidence map›Paper›PMID 29534676›Full record

Observational studyBMC infectious diseases2018

High vaccination coverage is associated with low epidemic level of seasonal influenza in elementary schools: an observational study in Matsumoto City, Japan.

Mitsuo Uchida, Minoru Kaneko, Yoshihiko Hidaka, Hiroshi Yamamoto, Takayuki Honda, Shouhei Takeuchi, Masaya Saito, Shigeyuki Kawa

Abstract readObservational Study
In one paragraph

Observational study in BMC infectious diseases, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

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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

8 authors.

Mitsuo UchidaCenter for Health, Safety and Environment Management, Shinshu University, 3-1-1, Asahi, Matsumoto, Nagano, 390-8621, Japan. uchida01@shinshu-u.ac.jp.ORCID 0000-0002-9928-8897
Minoru KanekoCenter for Health, Safety and Environment Management, Shinshu University, 3-1-1, Asahi, Matsumoto, Nagano, 390-8621, Japan.
Yoshihiko HidakaDepartment of Pediatrics, Shinshu University School of Medicine, 3-1-1, Asahi, Matsumoto, Nagano, 390-8621, Japan.
Hiroshi YamamotoThe First Department of Internal Medicine, Shinshu University School of Medicine, 3-1-1, Asahi, Matsumoto, Nagano, 390-8621, Japan.
Takayuki HondaDepartment of Laboratory Medicine, Shinshu University School of Medicine, 3-1-1, Asahi, Matsumoto, Nagano, 390-8621, Japan.
Shouhei TakeuchiDepartment of Public Health, Faculty of Medicine, University of Miyazaki, 1-1, Gakuenkihanadainishi, Miyazaki, Miyazaki, 889-2192, Japan.
Masaya SaitoInstitute of Statistical Mathematics, 10-3, Midorimachi, Tachikawa, Tokyo, 190-8562, Japan.
Shigeyuki KawaCenter for Health, Safety and Environment Management, Shinshu University, 3-1-1, Asahi, Matsumoto, Nagano, 390-8621, Japan.

Funding

Ministry of Education, Culture, Sports, Science and Technology JP26860413Ministry of Health, Labour and Welfare JP201447016A
6 · The paper itself

Abstract

backgroundInfluenza virus transmission may be prevented by infection control measures, including vaccination, wearing a mask, gargling with water, and hand washing. It is unclear, however, whether these measures affect influenza epidemics in school settings.

methodsA prospective epidemiological survey in all public elementary schools in Matsumoto City, Japan, during the 2014/2015 season evaluated the number of diagnosed patients in each school and calculated the reproduction number of schoolchildren. At the end of the prospective survey, a cross-sectional survey evaluated the implementation of infection control measures in these schools. Both results were combined and associations among infection control measures including vaccination, mask wearing, hand washing, water gargling, and epidemic level were evaluated.

resultsOf the 13,217 schoolchildren in 29 schools, 2548 were diagnosed with seasonal influenza. A significant negative association was observed between vaccination coverage and reproduction number at each school, but not between other infection control measures and the reproduction number. A regression curve with exponential function was most predictive. At 0% vaccination, the reproduction number was estimated to be 1.39.

conclusionThese findings provide evidence that high vaccination coverage was associated with reduced epidemic levels in schools and suggest the need for increased vaccination of schoolchildren.

Indexed as

EpidemicsVaccination CoverageChildCitiesFemaleHumansInfection ControlInfluenza, HumanInfluenza VaccinesJapanLinear ModelsMaleProspective StudiesSchoolsSeasonsSurveys and QuestionnairesInfluenza VaccinesEpidemiologyInfection control measureReproduction numberSchoolchildrenSeasonal influenza

Identifiers

PMID29534676
PMCPMC5851075

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.