Norhayati M, Zainudin B, Mohammod C G, Oothuman P, Azizi O, Fatmah M S
Department of Parasitology and Medical Entomology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
Southeast Asian J Trop Med Public Health. 1997 Mar;28(1):161-8.
A community study on the age and sex related prevalence, intensity infection and frequency distribution of Ascaris, Trichuris and hookworm was carried out in 205 Orang Asli (Aborigines) children (95 boys, 110 girls) aged 1-13 years. The overall prevalence of Ascaris, Trichuris and hookworm was 62.9%, 91.7% and 28.8%, respectively. Almost two-thirds of the children were infected with moderate and severe intensity infection of Trichuris, 46.3% had moderate to severe intensity infection of Ascaris. However only 1.5% had moderate intensity of hookworm infection. The prevalence and mean intensity infection (measured by eggs per g) of Ascaris was age-dependent; lower in age group 1-4 years reached peak and stable at age group 5 years and above. The prevalence of Trichuris was high in all age groups and it fluctuated with age; the mean intensity of infection of Trichuris (measured by eggs per g) was age-dependent. Hookworm infection also rose with age and reached peak at 5-6 years, following that the prevalence declined. The frequency distributions of Ascaris, and hookworm were overdispersed. A strong positive correlation (p < 0.001) were observed between Ascaris and Trichuris and between hookworm and Trichuris. A positive correlation (p < 0.01) were also observed between Ascaris and hookworm.
对205名年龄在1至13岁的原住民儿童（95名男孩，110名女孩）进行了一项关于蛔虫、鞭虫和钩虫的年龄及性别相关患病率、感染强度和频率分布的社区研究。蛔虫、鞭虫和钩虫的总体患病率分别为62.9%、91.7%和28.8%。近三分之二的儿童感染了中度和重度强度的鞭虫，46.3%的儿童感染了中度至重度强度的蛔虫。然而，只有1.5%的儿童感染了中度强度的钩虫。蛔虫的患病率和平均感染强度（以每克虫卵数衡量）与年龄有关；在1至4岁年龄组较低，在5岁及以上年龄组达到峰值并稳定。鞭虫在所有年龄组中的患病率都很高，且随年龄波动；鞭虫的平均感染强度（以每克虫卵数衡量）与年龄有关。钩虫感染也随年龄增加，在5至6岁时达到峰值，随后患病率下降。蛔虫和钩虫的频率分布呈过度分散。在蛔虫与鞭虫之间以及钩虫与鞭虫之间观察到强正相关（p<0.001）。在蛔虫与钩虫之间也观察到正相关（p<0.01）。
