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Volume 24, Number 8—August 2018

Ancylostoma ceylanicum Hookworm in Myanmar Refugees, Thailand, 2012–2015

Elise M. O’ConnellComments to Author , Tarissa Mitchell, Marina Papaiakovou, Nils Pilotte, Deborah Lee, Michelle Weinberg, Potsawin Sakulrak, Dilok Tongsukh, Georgiette Oduro-Boateng, Sarah Harrison, Steven A. Williams, William M. Stauffer1, and Thomas B. Nutman1
Author affiliations: National Institutes of Health, Bethesda, Maryland, USA (E.M. O’Connell, G. Oduro-Boateng, S. Harrison, T.B. Nutman); Centers for Disease Control and Prevention, Atlanta, Georgia, USA (T. Mitchell, D. Lee, M. Weinberg, W.M. Stauffer); Smith College, Northampton, Massachusetts, USA (M. Papaiakovou, N. Pilotte, S.A. Williams); University of Massachusetts, Amherst, Masschusetts, USA (N. Pilotte, S.A. Williams); International Organization for Migration, Mae Sot, Thailand (P. Sakulrak, D. Tongsukh); University of Minnesota Medical School, Minneapolis, Minnesota, USA (W.M. Stauffer)

Main Article

Table 5

Characteristics of US-bound Myanmar refugees in camps along Myanmar–Thailand border associated with increased risk for infection with Ancylostoma ceylanicum or Necator americanus hookworm, Thailand, 2012–2015*

N. americanus

A. ceylanicum
Odds ratio
p value
Odds ratio
p value
Children compared with infants and toddlers 8.17 0.0025 NS NS
Adults compared with children 3.83 <0.0001 NS NS
Ancylostoma ceylanicum infection 2.08 0.0017 NA NA
Trichuris trichiura infection 1.90 <0.0001 NS NS
Entamoeba histolytica infection 1.79 0.0173 NS NS
Ascaris lumbricoides infection 1.71 <0.0001 NS NS
Residence at camp 1, Mae La 1.27 0.0039 0.69 0.0303
Female sex 0.68 <0.0001 0.57 <0.0001
Necator americanus infection NA NA 2.08 0.0018

*We built the following factors into the model: other infections (Strongyloides stercoralis, A. lumbricoides, E. histolytica, Cryptosporidium spp., T. trichiura, Giardia duodenalis); camp (1, 2, 3); age (infants and toddlers <2 years of age, children 2–18 years of age, adults >18 years of age); and sex. Associations with Cryptosporidium spp. and G. duodenalis were not significant. We used a generalized linear model that used overdispersion with binomial distribution and logit link, and we performed maximum-likelihood analysis using JMP 12.0.1 ( NA, not applicable; NS, not significant.

Main Article

1These authors contributed equally to this article

Page created: July 11, 2018
Page updated: July 11, 2018
Page reviewed: July 11, 2018
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