Effectiveness of citronella preparations in preventing mosquito bites: Systematic review of controlled laboratory experimental studies

Kongkaew, C., Sakunrag, I., Chaiyakunapruk, N. and Tawatsin, A. (2011) Effectiveness of citronella preparations in preventing mosquito bites: Systematic review of controlled laboratory experimental studies. Tropical Medicine and International Health, 16 7: 802-810. doi:10.1111/j.1365-3156.2011.02781.x


Author Kongkaew, C.
Sakunrag, I.
Chaiyakunapruk, N.
Tawatsin, A.
Title Effectiveness of citronella preparations in preventing mosquito bites: Systematic review of controlled laboratory experimental studies
Journal name Tropical Medicine and International Health   Check publisher's open access policy
ISSN 1360-2276
1365-3156
Publication date 2011-07
Sub-type Article (original research)
DOI 10.1111/j.1365-3156.2011.02781.x
Open Access Status
Volume 16
Issue 7
Start page 802
End page 810
Total pages 9
Place of publication Oxford, United Kingdom
Publisher Wiley-Blackwell Publishing
Collection year 2012
Language eng
Formatted abstract
Objective  This review aims to examine the effectiveness of citronella preparation used as a mosquito repellent.
Methods  Multiple computerized databases such as MEDLINE, EMBASE, Cochrane CENTRAL, CINAHL, and AMED, were searched for controlled laboratory experiments that compared the effectiveness of citronella products to control in repelling Aedes, Anopheles and Culex mosquitoes using the cage or room methods. Outcomes measures were protection time and percentage repellency. The weighted mean difference and 95% confidence interval were calculated comparing the outcomes in the citronella and control groups. Meta-analysis was performed using the DerSimonian and Laird method under a random-effects model.
Results  Eleven studies met inclusion criteria. Based on a meta-analysis of studies using the cage method, protection time of the citronella oil for preventing Aedes mosquitoes was less than that in the DEET (N,N-diethyl-m-toluamide) group, with a difference in protection time of 253 min (95% confidence interval: 169–336). The combination of citronella oil and vanillin is likely to have a longer protection time compared with citronella oil alone. In studies using the room method, citronella oil and/or the combination of citronella oil and vanillin provided complete repellency at least 3 h. In Anopheles and Culex mosquitoes, a combination of citronella oil and vanillin product demonstrated a comparable protection time against DEET; however, it remained inconclusive due to a limited number of studies.
Conclusions  Citronella products are less effective than DEET products in terms of duration of protection. Adding vanillin to citronella oil products could prolong the protection time.
Keyword Citronella oil
Mosquito repellent
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
School of Public Health Publications
 
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Created: Thu, 19 Jan 2012, 11:31:50 EST by Geraldine Fitzgerald on behalf of School of Public Health