Kightlinger L K, Seed J R, Kightlinger M B
Department of Epidemiology, School of Public Health, University of North Carolina, Chapel Hill 27599-7400, USA.
J Parasitol. 1998 Jun;84(3):480-4.
Ascaris lumbricoides worm counts were examined as the outcome products of exposure proxy variables. A survey of 663 children, 4-10 yr old, living in southeastern Madagascar revealed prevalences of 93% for A. lumbricoides, 55% for Trichuris trichiura, and 27% for hookworm. Worm expulsions were conducted on 428 of these children; the data revealed an overdispersed distribution of A. lumbricoides, with an arithmetic mean of 19.2 worms per child. A concurrent socioeconomic household survey was conducted by visitation and interview. Exposure to infection was assessed by environmental, demographic, behavioral, and socioeconomic indicators. Ascaris lumbricoides aggregations were associated with gender, housing style, ethnicity, and agricultural factors. The results suggest that exposure and infection are ubiquitous in this child population, and that A. lumbricoides intensity is influenced by gender-related behavioral and environmental factors that contribute to exposure.
对蛔虫计数进行了检查，将其作为暴露替代变量的结果产物。对生活在马达加斯加东南部的663名4至10岁儿童进行的一项调查显示，蛔虫的感染率为93%，鞭虫为55%，钩虫为27%。对其中428名儿童进行了驱虫；数据显示蛔虫分布过度分散，每名儿童的算术平均蛔虫数为19.2条。通过上门走访和访谈进行了一项同期社会经济家庭调查。通过环境、人口、行为和社会经济指标评估感染暴露情况。蛔虫聚集与性别、住房类型、种族和农业因素有关。结果表明，在这一儿童群体中，暴露和感染普遍存在，并且蛔虫感染强度受与性别相关的行为和环境因素影响，这些因素导致了暴露。
