Evidence map›Paper›PMID 16451347›Full record

ArticleTropical medicine & international health : TM & IH2006

Distance to water source and altitude in relation to active trachoma in Rombo district, Tanzania.

R F Baggaley, A W Solomon, H Kuper, S Polack, P A Massae, J Kelly, S Safari, N D E Alexander, P Courtright, A Foster and 1 more

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In one paragraph

Article in Tropical medicine & international health : TM & IH, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 7 pooled it
1.7field-weighted citation impact, top 19% 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

41 citing papers in PubMed, 7 syntheses or guidelines pooled it, 62 citations in OpenAlex.

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  12. Observational
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  15. Trachoma.Nature reviews. Disease primers · 2022
    Review
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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

11 authors at 3 institutions in 2 countries.

R F BaggaleyModelling Unit, Department of Statistics, Modelling and Bioinformatics, Centre for Infections, Health Protection Agency, London, UK. rebecca.baggaley@hpa.org.uk
A W Solomon
H Kuper
S Polack
P A Massae
J Kelly
S Safari
N D E Alexander
P Courtright
A Foster
D C Mabey
London School of Hygiene & Tropical Medicine · GBPublic Health England · GBTumaini University · TZ

Funding

Wellcome Trust 059134
6 · The paper itself

Abstract

objectivesTo investigate the relationship between distance to water source, altitude and active trachoma in children in Rombo district, Tanzania.

methodsIn each of Rombo's 64 villages, 10 balozis (groups of 8-40 households) were selected at random and all resident children aged 1-9 years were examined for clinical signs of active trachoma. The households of these children and village water sources were mapped using differentially corrected global positioning system data to determine each household's altitude and distance to the nearest water supply.

resultsWe examined 12 415 children and diagnosed 1171 cases of active trachoma (weighted prevalence=9.1%, 95% CI: 8.0, 10.2%). Active trachoma prevalence ranged from 0% to 33.7% across villages. Increasing distance to the nearest water source was significantly associated with rising trachoma prevalence (age-adjusted odds ratio for infection (OR) for highest quartile compared to lowest=3.56, 95% CI 2.47, 5.14, P for trend <0.0001). Altitude was significantly inversely associated with trachoma prevalence (age-adjusted OR for highest quartile compared to lowest=0.55, 95% CI 0.41, 0.75, P for trend <0.0001). These associations remained significant after adjustment in multivariate analysis.

conclusionsTrachoma is endemic in Rombo district, although the prevalence varies considerably between villages. Spatial mapping is a useful method for analysing risk factors for active trachoma.

Indexed as

AltitudeEndemic DiseasesWater SupplyAge DistributionChildChild, PreschoolFemaleHumansInfantMalePopulation SurveillancePrevalenceRural HealthSex DistributionTanzaniaTopography, Medical

Identifiers

PMID16451347
PMCPMC6855913
OpenAlexW2083618487

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.