Risk factors for human helminthiases in rural Philippines

Background: A cross-sectional survey was performed in 2012 among 18 rural barangays in Northern Samar, the Philippines in order to determine the prevalence of single and multiple species helminth infections and the underlying risk factors of acquiring one or more parasites. Methods: A total of 6976...

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Main Authors: Allen G.P. Ross, Remigio M. Olveda, Donald P. McManus, Donald A. Harn, Delia Chy, Yuesheng Li, Veronica Tallo, Shu-Kay Ng
Format: Article
Language:English
Published: Elsevier 2017-01-01
Series:International Journal of Infectious Diseases
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1201971216311821
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author Allen G.P. Ross
Remigio M. Olveda
Donald P. McManus
Donald A. Harn
Delia Chy
Yuesheng Li
Veronica Tallo
Shu-Kay Ng
author_facet Allen G.P. Ross
Remigio M. Olveda
Donald P. McManus
Donald A. Harn
Delia Chy
Yuesheng Li
Veronica Tallo
Shu-Kay Ng
author_sort Allen G.P. Ross
collection DOAJ
description Background: A cross-sectional survey was performed in 2012 among 18 rural barangays in Northern Samar, the Philippines in order to determine the prevalence of single and multiple species helminth infections and the underlying risk factors of acquiring one or more parasites. Methods: A total of 6976 participants who completed a medical questionnaire and provided a stool sample for examination were included in the final analysis. Results: The overall prevalence rates of Schistosoma japonicum, Ascaris lumbricoides, Trichuris trichiura, and hookworm were found to be moderate to high at 28.9%, 36.5%, 61.8%, and 28.4%, respectively. However, the prevalence of harbouring any of the helminths was found to be higher at 75.6%. Significant variation was evident among the predicted barangay-specific random effects for infection with S. japonicum (barangay variance of 0.66, 95% confidence interval 0.31–1.40) and for any helminth infection (barangay variance of 0.63, 95% confidence interval 0.30–1.29). The predictive models showed, with greater than 80% sensitivity and specificity, that low socio-economic status, low levels of education, poor sanitation, proximity to water sources, occupation (i.e., farming and fishing), and male sex were all reliable indicators of infection status. Conclusions: This study will aid in the targeting of limited resources for national treatment and WASH (water, sanitation, and hygiene) efforts in low- and middle-income countries.
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spelling doaj.art-8d8887c593d8412e86cd06d33c0102bf2022-12-22T01:53:36ZengElsevierInternational Journal of Infectious Diseases1201-97121878-35112017-01-0154C15015510.1016/j.ijid.2016.09.025Risk factors for human helminthiases in rural PhilippinesAllen G.P. Ross0Remigio M. Olveda1Donald P. McManus2Donald A. Harn3Delia Chy4Yuesheng Li5Veronica Tallo6Shu-Kay Ng7Menzies Health Institute Queensland, Griffith University, Southport, Queensland, AustraliaResearch Institute for Tropical Medicine, Department of Health, Muntinlupa, PhilippinesQIMR Berghofer Medical Research Institute, Brisbane, Queensland, AustraliaThe Center for Tropical and Emerging Global Health Diseases, University of Georgia, Athens, Georgia, USAMunicipal Medical Officer of Health, Palapag, Northern Samar, PhilippinesQIMR Berghofer Medical Research Institute, Brisbane, Queensland, AustraliaResearch Institute for Tropical Medicine, Department of Health, Muntinlupa, PhilippinesMenzies Health Institute Queensland, Griffith University, Southport, Queensland, AustraliaBackground: A cross-sectional survey was performed in 2012 among 18 rural barangays in Northern Samar, the Philippines in order to determine the prevalence of single and multiple species helminth infections and the underlying risk factors of acquiring one or more parasites. Methods: A total of 6976 participants who completed a medical questionnaire and provided a stool sample for examination were included in the final analysis. Results: The overall prevalence rates of Schistosoma japonicum, Ascaris lumbricoides, Trichuris trichiura, and hookworm were found to be moderate to high at 28.9%, 36.5%, 61.8%, and 28.4%, respectively. However, the prevalence of harbouring any of the helminths was found to be higher at 75.6%. Significant variation was evident among the predicted barangay-specific random effects for infection with S. japonicum (barangay variance of 0.66, 95% confidence interval 0.31–1.40) and for any helminth infection (barangay variance of 0.63, 95% confidence interval 0.30–1.29). The predictive models showed, with greater than 80% sensitivity and specificity, that low socio-economic status, low levels of education, poor sanitation, proximity to water sources, occupation (i.e., farming and fishing), and male sex were all reliable indicators of infection status. Conclusions: This study will aid in the targeting of limited resources for national treatment and WASH (water, sanitation, and hygiene) efforts in low- and middle-income countries.http://www.sciencedirect.com/science/article/pii/S1201971216311821Intestinal helminthsRisk factorsMass drug administration (MDA)ControlSocial determinants
spellingShingle Allen G.P. Ross
Remigio M. Olveda
Donald P. McManus
Donald A. Harn
Delia Chy
Yuesheng Li
Veronica Tallo
Shu-Kay Ng
Risk factors for human helminthiases in rural Philippines
International Journal of Infectious Diseases
Intestinal helminths
Risk factors
Mass drug administration (MDA)
Control
Social determinants
title Risk factors for human helminthiases in rural Philippines
title_full Risk factors for human helminthiases in rural Philippines
title_fullStr Risk factors for human helminthiases in rural Philippines
title_full_unstemmed Risk factors for human helminthiases in rural Philippines
title_short Risk factors for human helminthiases in rural Philippines
title_sort risk factors for human helminthiases in rural philippines
topic Intestinal helminths
Risk factors
Mass drug administration (MDA)
Control
Social determinants
url http://www.sciencedirect.com/science/article/pii/S1201971216311821
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