Prevalence of malaria parasitaemia in school-aged children
and pregnant women in endemic settings of sub-Saharan Africa:
A systematic review and meta-analysis
Geofrey Makenga
a,b,
⁎, Sonia Menon
b
, Vito Baraka
a
, Daniel T.R. Minja
a
, Swabra Nakato
b
,
Christopher Delgado-Ratto
b
, Filbert Francis
a
, John P.A. Lusingu
a
, Jean-Pierre Van Geertruyden
b
a
National Institute for Medical Research, Tanga Centre, P. O. Box 5004, Tanga, Tanzania
b
Global Health Institute, University of Antwerp, Antwerp, Belgium
article info
Article history:
Received 27 October 2019
Received in revised form 15 October 2020
Accepted 18 October 2020
Despite increased malaria control efforts, school-aged children (5–14 years) have higher a ma-
laria prevalence compared to children under-five. In high-transmission settings, up to 70% of
school-aged children harbour malaria parasitaemia and therefore contribute significantly to
the reservoir for transmission. A systematic review was performed to explore the correlation
between the malaria parasite carriage in pregnant women and school-aged children living in
similar endemic settings of sub Saharan Africa to inform strategies to improve targeted malaria
control.
In order to obtain data on malaria prevalence in pregnant women and school-aged children liv-
ing in the same endemic setting, we searched the Malaria in Pregnancy Library, PubMed,
Cochrane library and Web of Science in December 2018. We fita fixed effect model to obtain
a pooled risk ratio (PRR) of malaria in school-aged children versus pregnant women and used
Poisson regression to estimate risk ratios in school-aged children for every increase in preva-
lence in pregnant women. We used data from six (out of 1096) sources that included 10
data points. There was a strong linear relation between the prevalence of malaria infection in
pregnant women and school-aged children (r = 0·93, p < 0·0001). School-aged children
were nearly twice at risk to carry parasites compared to pregnant women (RR = 1.95, 95%
CI: 1·69–2.25, p < 0.01). Poisson regression showed that a 1% increase in prevalence of malaria
infection in pregnant women was significantly associated with increase in risk in school-aged
children by 4%.
Malaria infection prevalence in school-aged children is strongly correlated with the prevalence
in pregnant women living in the same community, and may be considered as alternative indi-
cators to track temporal and spatial trends in malaria transmission intensity. Chemoprevention
strategies targeting school-aged children should be explored to reduce malaria burden and
transmission in school-aged children and its potential impact on communities.
© 2020 The Authors. Published by Elsevier Ltd on behalf of World Federation of Parasitologists.
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/
licenses/by-nc-nd/4.0/).
Keywords:
Malaria burden
School-aged children
Pregnant women
Correlation
Risk-ratio
Transmission intervention
Contents
1. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Parasite Epidemiology and Control 11 (2020) e00188
⁎ Corresponding author at.: National Institute for Medical Research, Tanga Centre, P. O. Box 5004, Tanga, Tanzania.
E-mail address: geofmacky@gmail.com. (G. Makenga).
https://doi.org/10.1016/j.parepi.2020.e00188
2405-6731/© 2020 The Authors. Published by Elsevier Ltd on behalf of World Federation of Parasitologists. This is an open access article under the CC BY-NC-ND license
(http://creativecommons.org/licenses/by-nc-nd/4.0/).
Contents lists available at ScienceDirect
Parasite Epidemiology and Control
journal homepage: www.elsevier.com/locate/parepi