Subpopulation differentiation and diversity.

Di - pairwise D for all members of the group. Student's t-test was used to compare group means. Di and Dic were compared by ANOVA Other variables were trips outside of the region, co-infection with other helminths, all water contact points, number of water contacts visited, a history of past infections, socio-economic index. The Dc was estimated using the program Spade (http://chao.stat.nthu.edu.tw). Statistically significant comparisons for Dic are in bold type.

Di指该研究组全体成员的成对差异值D（pairwise D）。采用学生t检验（Student's t-test）对组均值进行比较。针对Di与Dic的比较采用方差分析（ANOVA）。其余分析变量涵盖跨区域出行、其他蠕虫合并感染、所有水源接触点、到访的水源接触点数量、既往感染史以及社会经济指数。差异值Dc通过Spade程序（http://chao.stat.nthu.edu.tw）进行估算。针对Dic的统计学显著性比较结果以粗体标注。