Martin L K
Health Lab Sci. 1975 Apr;12(2):107-11.
Some of the problems in comparing the incidence of helminthic infections at different time periods are discussed. The relation between egg counts and clinical infection is also discussed. True random sampling is essential if statistically valid data are to be collected.
本文讨论了在比较不同时间段内蠕虫感染发病率时存在的一些问题。还讨论了虫卵计数与临床感染之间的关系。若要收集具有统计学效度的数据，真正的随机抽样至关重要。
