Evidence map›Paper›PMID 26124620›Full record

ArticleEthiopian journal of health sciences2015

Correlation of Climate Variability and Malaria: A Retrospective Comparative Study, Southwest Ethiopia.

Lelisa Sena, Wakgari Deressa, Ahmed Ali

Open access · diamondAbstract readComparative Study
In one paragraph

Article in Ethiopian journal of health sciences, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

25 citing papers in PubMed, 49 citations in OpenAlex.

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  4. Effect of seasonal variability on the increased malaria positivity rate in drought-prone malaria endemic areas of Ethiopia.Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2024
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  16. Statistical Modelling of the Effects of Weather Factors on Malaria Occurrence in Abuja, Nigeria.International journal of environmental research and public health · 2020
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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

3 authors at 1 institution in 1 country.

Lelisa SenaDepartment of Epidemiology, College of Public Health and Medical Sciences, Jimma University, Ethiopia ; Department of Preventive Medicine, School of Public Health, College of Health Sciences, Addis Ababa University, Ethiopia.
Wakgari DeressaDepartment of Preventive Medicine, School of Public Health, College of Health Sciences, Addis Ababa University, Ethiopia.
Ahmed AliDepartment of Preventive Medicine, School of Public Health, College of Health Sciences, Addis Ababa University, Ethiopia.
Addis Ababa University · ET

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundClimatic variables can determine malaria transmission dynamics. To see the correlation between malaria occurrence and climatic variables, records of malaria episodes over eight years period were analyzed incorporating climatic variables around Gilgel-Gibe Hydroelectric Dam and control sites.

methodsRecords of 99,206 confirmed malaria episodes registered between 2003 and 2011 were analyzed along with local meteorological data of the same duration. Data were analyzed with SPSS statistical software version 20 for Windows. Spearman correlation coefficient was estimated as a measure of the correlation.

resultsThe major peaks of malaria prevalence were observed following the peaks of rainfall in the Gilgel-Gibe Hydroelectric Dam site. In the control site, the peaks of malaria in some years coincided with the peaks of rainfall, and the pattern of rainfall was relatively less fluctuating. Mean rainfall was negatively correlated with number of malaria cases at lags of 0 and 1 month, but positively correlated at lags of 2 to 4 months. Mean relative humidity showed significant positive correlations at lags of 3 to 4 months. Monthly mean maximum and minimum temperatures weakly correlated at lags of 0 to 4 months.

conclusionsCorrelations of malaria and climate variables were different for the two sites; in Gilgel-Gibe, rainfall and relative humidity showed positive correlations. However, in the control site, the correlation of weather variables and malaria episodes were insignificant. Exploration of additional factors such as vegetation index and physico-chemical nature of mosquito breeding site may improve understanding of determinants of malaria dynamics in the area.

Indexed as

ClimateHumidityRainAnimalsEthiopiaHumansMalariaPrevalenceRetrospective Studiesclimatic variablescorrelationsEthiopiaGilgel-Gibemalaria

Identifiers

PMID26124620
PMCPMC4478264
OpenAlexW2007312992

What OpenQuestion holds

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Registered trials

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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.