Two-by-two contingency table for predicted probability (P(DRM)) in relation to drain-related meningitis.

Two-by-two contingency table for predicted probability cut-offs 0.107 and 0.175 in determining the presence of drain-related meningitis with associated sensitivity, specificity, positive and negative predictive values and 95% confidence intervals.Abbreviations: NPV – negative predictive value, PPV – positive predictive value, P(DRM): predicted probability of drain-related meningitis.

用于以0.107和0.175作为预测概率截断值（predicted probability cut-offs），判断引流相关性脑膜炎（drain-related meningitis）是否存在的四格表（two-by-two contingency table），并附带对应的灵敏度（sensitivity）、特异度（specificity）、阳性预测值（positive predictive value）、阴性预测值（negative predictive value）及95%置信区间（95% confidence intervals）。缩写说明：NPV——阴性预测值，PPV——阳性预测值，P(DRM)：引流相关性脑膜炎的预测概率。