Evidence map›Paper›PMID 28340144›Full record

SynthesisTransactions of the Royal Society of Tropical Medicine and Hygiene2017

Preventive chemotherapy in one year reduces by over 80% the number of individuals with soil-transmitted helminthiases causing morbidity: results from meta-analysis.

Chiara Marocco, Mathieu Bangert, Serene A Joseph, Christopher Fitzpatrick, Antonio Montresor

Abstract readMeta-AnalysisReview
In one paragraph

Synthesis in Transactions of the Royal Society of Tropical Medicine and Hygiene, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
4.0field-weighted citation impact, top 6% of its field
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

23 citing papers in PubMed, 34 citations in OpenAlex.

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  20. Preventive chemotherapy to control soil-transmitted helminthiasis averted more than 500 000 DALYs in 2015.Transactions of the Royal Society of Tropical Medicine and Hygiene · 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

5 authors at 1 institution in 1 country.

Chiara MaroccoDepartment of Control of Neglected Tropical Diseases, World Health Organization ,Geneva, Switzerland.
Mathieu BangertDepartment of Control of Neglected Tropical Diseases, World Health Organization ,Geneva, Switzerland.
Serene A JosephDepartment of Control of Neglected Tropical Diseases, World Health Organization,Geneva, Switzerland.
Christopher FitzpatrickDepartment of Control of Neglected Tropical Diseases, World Health Organization ,Geneva, Switzerland.
Antonio MontresorDepartment of Control of Neglected Tropical Diseases, World Health Organization ,Geneva, Switzerland.
World Health Organization · CH

Funding

CIHRWorld Health Organization 001
6 · The paper itself

Abstract

The morbidity due to Ascaris lumbricoides and Trichuris trichiura is caused by infections of moderate and heavy intensity while hookworm infections of all intensities are recognized to cause morbidity. This study aims to evaluate the effect of repeated rounds of preventive chemotherapy on the proportion of soil-transmitted helminth (STH) infections causing morbidity. We identified studies from 17 countries, reporting changes in the proportion of STH infection causing morbidity between baseline and follow-up. In the studies identified, the average proportion of individuals with STH infections of moderate and heavy intensity was of 14% at baseline and was on average reduced to 2% by the intervention (i.e., 85% reduction). There was an average reduction of 73% after the first year of treatment, which reached almost 80% after 5 years and over 95% in 10 years of deworming interventions. The reduction in hookworm prevalence was 57% after 12 months reaching 78% after 5 years. We consider the results presented in this study especially useful for decision makers as it demonstrates the effectiveness of preventive chemotherapy in reducing STH prevalence and morbidity. We encourage the implementation of deworming programs to achieve the goal, set by WHO for 2020, to eliminate STH morbidity in children.

Indexed as

AncylostomatoideaAscaris lumbricoidesChemopreventionGlobal HealthSoilTrichurisAnimalsAscariasisChildFemaleHelminthiasisHookworm InfectionsHumansMaleTrichuriasisSoilDewormingEffectivenessMorbidityPreventive chemotherapySoil-transmitted helminthiasis

Identifiers

PMID28340144
PMCPMC5590722
OpenAlexW2596406094

What OpenQuestion holds

Textmetadata
LicenceTDM
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.