Accuracy of search filters for finding predictor finding studies and clinical prediction model studies.

CI = confidence interval; PF = predictor finding; CDR = clinical prediction model; NNR = number needed to read; N.A. = not applicable.Meta-analysis 1 for PF studies = Systematic review of prognostic models in patients with acute stroke – C Counsell et.al. Cerebrovasc Dis 2001; 12:159–70.Meta-analysis 1 for CDR studies = Clinical prediction rules for pulmonary embolism: a systematic review and meta-analysis – E Ceriani et.al. JTH 2010;8:957–70.Meta-analysis 2 for CDR studies = Accuracy and quality of clinical decision rules for syncope in the emergency department: a systematic review and meta-analysis – LA Serrano et.al. Ann of Emerg Med 2010;56:362–73.CI = 置信区间（confidence interval）；PF = 预测因子发现（predictor finding）；CDR = 临床预测模型（clinical prediction model）；NNR = 需读例数（number needed to read）；N.A. = 不适用（not applicable）。 针对PF研究的元分析1 = 急性卒中患者预后模型的系统综述——C Counsell等。《Cerebrovasc Dis》2001; 12:159–70。 针对CDR研究的元分析1 = 肺栓塞临床预测规则：系统综述与元分析——E Ceriani等。《JTH》2010;8:957–70。 针对CDR研究的元分析2 = 急诊科晕厥临床决策规则的准确性与质量：系统综述与元分析——LA Serrano等。《Ann of Emerg Med》2010;56:362–73。