

@article {16503,
	title = {Soil-transmitted helminth infections and associated risk factors in three {Orang} {Asli} tribes in {Peninsular} {Malaysia}},
	journal = {Sci Rep},
	volume = {4},
	year = {2014},
	pages = {4101},
	abstract = {Currently, information on prevalence of soil-transmitted helminth (STH) infections among different tribes of Orang Asli (aboriginal) is scarce in Malaysia. The present study is a cross-sectional study aimed at determining the factors associated with the prevalence of STH infections among the Proto-Malay, Negrito and Senoi tribes. Faecal samples were collected from 500 participants and socioeconomic data was collected via pre-tested questionnaire. All samples were processed using formalin-ether sedimentation and Wheatley{\textquoteright}s trichrome staining. Trichuris trichiura (57\%) was the most common STH seen among the participants, followed by Ascaris lumbricoides (23.8\%) and hookworm (7.4\%). Trichuriasis and ascariasis showed an age-dependency relationship; significantly higher rates were observed among Senois who aged {\textless}15 years. Likewise, Negritos also showed an age-dependency association with ascariasis affecting mainly the under 15 years old individuals. Multivariate logistic regression model indicated the following predictors of trichuriasis among these communities; being aged {\textless}15 years, consuming raw vegetables, belonging to a large household members ({\textgreater}/=8) and earning low household income ({\textless}RM500). Meanwhile, ascariasis was significantly related to participants being aged {\textless}15 years and earning low household income. Two risk factors were found to be associated with hookworm infection; consuming raw vegetables and eating contaminated fresh fruits.},
	keywords = {Adolescent, Adult, Age Factors, Aged, Ancylostomatoidea/isolation \& purification, Animals, Ascaris lumbricoides/isolation \& purification, Child, Cross-Sectional Studies, Feces/parasitology, Female, Fruit/parasitology, Helminthiasis/*diagnosis/epidemiology/parasitology, Humans, Logistic Models, Malaysia/epidemiology, Male, Middle Aged, Odds Ratio, Preschool, prevalence, Risk Factors, Socioeconomic Factors, Surveys and Questionnaires, Trichuris/isolation \& purification, Vegetables/parasitology, Young Adult},
	issn = {2045-2322 (Electronic) 2045-2322 (Linking)},
	doi = {10.1038/srep04101},
	author = {Anuar, T. S. and Salleh, F. M. and Moktar, N.}
}
