Multivariate logistic regression analyses of symptoms reported by tick bite cases and erythema migrans (EM) cases.

EM = erythema migrans; mOR = multivariate odds ratio; CI = confidence interval; ns = not statistically significant.*multivariate logistic regression model, matched by case.†multivariate logistic regression model, adjusted for age.‡significantly lower risk of an indistinct rash (other than EM) at follow-up than at baseline in the multivariate logistic regression model, matched by case (odds ratio 0.5, 95%CI: 0.3–0.9, p-value 0.03).EM为移行性红斑（erythema migrans）；mOR为多变量优势比（multivariate odds ratio）；CI为置信区间（confidence interval）；ns表示无统计学显著性（not statistically significant）。* 多变量logistic回归模型，按病例匹配。† 多变量logistic回归模型，已校正年龄因素。‡ 在按病例匹配的多变量logistic回归模型中，随访时点不明特征皮疹（移行性红斑除外）的发生风险显著低于基线时点（优势比0.5，95%置信区间：0.3–0.9，P值0.03）。