• Record: found
  • Abstract: found
  • Article: not found

The effects of deworming on indicators of school performance in Guatemala.

Transactions of the Royal Society of Tropical Medicine and Hygiene

Albendazole, therapeutic use, Animals, Anthelmintics, Ascariasis, drug therapy, Ascaris lumbricoides, isolation & purification, Child, Double-Blind Method, Educational Measurement, Feces, parasitology, Female, Guatemala, Humans, Language, Male, Parasite Egg Count, Reading, Socioeconomic Factors, Trichuriasis

Read this article at

      There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.


      Intestinal helminths are among the most common infections in school-age children. Of 246 children, aged 7-12 years, attending school in rural Guatemala, 91% carried Ascaris lumbricoides and 82% carried Trichuris trichiura. These children were randomly assigned to receive either albendazole or placebo at 0 and 12 weeks in a 'double-blind' study of the effects of deworming on indicators of school performance. Albendazole successfully rid the children of Ascaris but it was less effective against Trichuris. The children's performance in tests of reading and vocabulary were measured at 0 and 24 weeks, the Peabody picture vocabulary test was given at 24 weeks, and attendance was measured throughout the school year. Comparison of the treated and placebo groups showed no positive effect of deworming. The treated children were largely free of Ascaris for at least 6 months, but during that period we could not detect any improvement in reading, vocabulary, or attendance. The effects of being Trichuris-free were not examined because of the limited effectiveness of albendazole against this worm at the dosage used.

      Related collections

      Author and article information



      Comment on this article