Evidence map›Paper›PMID 38011142›Full record

ArticlePloS one2023

Spatial variation and clustering of anaemia prevalence in school-aged children in Western Kenya.

Bibian N Robert, Anitah Cherono, Eda Mumo, Charles Mwandawiro, Collins Okoyo, Paul M Gichuki, Justine L Blanford, Robert W Snow, Emelda A Okiro

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.9field-weighted citation impact, top 21% 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

2 citing papers in PubMed, 3 citations in OpenAlex.

  1. Review
  2. Article
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

9 authors at 2 institutions in 3 countries.

Bibian N RobertKenya Medical Research Institute-Wellcome Trust Research Programme, Population and Health Impact Surveillance Group, Nairobi, Kenya.ORCID 0000-0002-9737-883X
Anitah CheronoKenya Medical Research Institute-Wellcome Trust Research Programme, Population and Health Impact Surveillance Group, Nairobi, Kenya.
Eda MumoKenya Medical Research Institute-Wellcome Trust Research Programme, Population and Health Impact Surveillance Group, Nairobi, Kenya.ORCID 0000-0001-5856-5694
Charles MwandawiroKenya Medical Research Institute, Eastern and Southern Africa Centre of International Parasite Control (ESACIPAC), Nairobi, Kenya.
Collins OkoyoKenya Medical Research Institute, Eastern and Southern Africa Centre of International Parasite Control (ESACIPAC), Nairobi, Kenya.
Paul M GichukiKenya Medical Research Institute, Eastern and Southern Africa Centre of International Parasite Control (ESACIPAC), Nairobi, Kenya.
Justine L BlanfordDepartment of Earth Observation Sciences, University of Twente, Enschede, Netherlands.ORCID 0000-0003-0844-9390
Robert W SnowKenya Medical Research Institute-Wellcome Trust Research Programme, Population and Health Impact Surveillance Group, Nairobi, Kenya.
Emelda A OkiroKenya Medical Research Institute-Wellcome Trust Research Programme, Population and Health Impact Surveillance Group, Nairobi, Kenya.
Kenya Medical Research Institute · KEUniversity of Twente · NL

Funding

Wellcome Trust
6 · The paper itself

Abstract

Anaemia surveillance has overlooked school-aged children (SAC), hence information on this age group is scarce. This study examined the spatial variation of anaemia prevalence among SAC (5-14 years) in western Kenya, a region associated with high malaria infection rates. A total of 8051 SAC were examined from 82 schools across eight counties in Western Kenya in February 2022. Haemoglobin (Hb) concentrations were assessed at the school and village level and anaemia defined as Hb<11.5g/dl for age 5-11yrs and Hb <12.0g/dl for 12-14yrs after adjusting for altitude. Moran's I analysis was used to measure spatial autocorrelation, and local clusters of anaemia were mapped using spatial scan statistics and local indices of spatial association (LISA). The prevalence of anaemia among SAC was 27.8%. The spatial variation of anaemia was non-random, with Global Moran's I 0.2 (p-value < 0.002). Two significant anaemia cluster windows were identified: Cluster 1 (LLR = 38.9, RR = 1.4, prevalence = 32.0%) and cluster 2 (LLR = 23.6, RR = 1.6, prevalence = 45.5%) at schools and cluster 1 (LLR = 41.3, RR = 1.4, prevalence = 33.3%) and cluster 2 (LLR = 24.5, RR = 1.6, prevalence = 36.8%) at villages. Additionally, LISA analysis identified ten school catchments as anaemia hotspots corresponding geographically to SatScan clusters. Anaemia in the SAC is a public health problem in the Western region of Kenya with some localised areas presenting greater risk relative to others. Increasing coverage of interventions, geographically targeting the prevention of anaemia in the SAC, including malaria, is required to alleviate the burden among children attending school in Western Kenya.

Indexed as

AnemiaMalariaChildChild, PreschoolCluster AnalysisHumansKenyaPrevalence

Identifiers

PMID38011142
PMCPMC10681207
OpenAlexW4389043263

What OpenQuestion holds

Textmetadata
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.