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Sleeping on the floor decreases insecticide treated bed net use and increases risk of malaria in children under 5 years of age in Mbita District, Kenya

Published online by Cambridge University Press:  18 August 2015

NOBORU MINAKAWA ,
JAMES O. KONGERE ,
GABRIEL O. DIDA ,
ERIKO IKEDA ,
JINPING HU ,
KOGOMI MINAGAWA ,
KYOKO FUTAMI ,
HITOSHI KAWADA ,
SAMMY M. NJENGA  and
PETER S. LARSON
NOBORU MINAKAWA*
Affiliation:
Department of Vector Ecology and Environment, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan
JAMES O. KONGERE
Affiliation:
NUITM-KEMRI Project, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nairobi, Kenya
GABRIEL O. DIDA
Affiliation:
Department of Vector Ecology and Environment, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan
ERIKO IKEDA
Affiliation:
Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan
JINPING HU
Affiliation:
Department of Vector Ecology and Environment, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan
KOGOMI MINAGAWA
Affiliation:
Department of Vector Ecology and Environment, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan
KYOKO FUTAMI
Affiliation:
Department of Vector Ecology and Environment, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan
HITOSHI KAWADA
Affiliation:
Department of Vector Ecology and Environment, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan
SAMMY M. NJENGA
Affiliation:
Eastern and Southern Africa Centre of International Parasite Control, Kenya Medical Research Institute, Nairobi, Kenya
PETER S. LARSON
Affiliation:
NUITM-KEMRI Project, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nairobi, Kenya Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, USA
*
* Corresponding author. Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan. E-mail: minakawa@nagasaki-u.ac.jp
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Summary

Children who sleep on the floor are less likely to use long-lasting insecticidal nets (LLINs); however, the relationship between sleeping location and Plasmodium falciparum infection has not been investigated sufficiently. This study revealed whether sleeping location (bed vs floor) is associated with P. falciparum infection among children 7–59 months old. More than 60% of children slept on the floor. Younger children were significantly more likely to sleep in beds [odds ratio, OR 2·31 (95% confidence interval (CI) 2·02–2·67)]. Nearly 70% of children slept under LLINs the previous night. LLIN use among children who slept on the floor was significantly less than ones sleeping in beds [OR 0·49 (95% CI 0·35–0·68)]. The polymerase chain reaction (PCR) based P. falciparum infection rate and slide based infection rate were 65·2 and 29·7%, respectively. Both infections were significantly higher among children slept on the floor [OR1·51 (95% CI 1·08–2·10) for PCR base, OR 1·62 (95% CI 1·14–2·30) for slide base] while net availability was not significant. Sleeping location was also significant for slide based infection with fever (⩾37·5 °C) [2·03 (95% CI 1·14–3·84)] and high parasitemia cases (parasite ⩾2500 µL−1) [2·07 (95% CI 1·03–4·50)]. The results suggest that sleeping location has a direct bearing on the effectiveness of LLINs.

Keywords

MalariaLLINsleeping locationchildrenKenyaPlasmodium
Type
Research Article
Information
Parasitology , Volume 142 , Issue 12 , October 2015 , pp. 1516 - 1522
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Copyright
Copyright © Cambridge University Press 2015 

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