Observed frequencies of the presence of ticks on individual properties in forest and lawn habitat types.

Properties were significantly more likely to have ticks detected in both forest and lawn, or to have no ticks detected in either. Values in parentheses are expected values assuming no association between habitat types.

调查地块在森林与草坪两种生境中同时检出蜱虫，或在两类生境中均未检出蜱虫的概率显著更高。括号内的数值为假设生境类型间不存在关联时的期望值。