Table 1.

Search strategies

Embase

(('case definition':ab,ti OR 'case-definition':ab,ti OR 'case detection':ab,ti OR 'case-detection':ab,ti OR 'case identification':ab,ti OR 'case-identification':ab,ti OR 'case-finding':ab,ti OR 'case finding':ab,ti OR 'case-ascertainment':ab,ti OR 'case ascertainment':ab,ti OR 'disease definition':ab,ti OR 'disease-definition':ab,ti OR 'disease detection':ab,ti OR 'disease-detection':ab,ti OR 'disease identification':ab,ti OR 'disease-identification':ab,ti OR 'disease-finding':ab,ti OR 'disease finding':ab,ti OR 'disease-ascertainment':ab,ti OR 'disease ascertainment':ab,ti OR (('detect*':ab,ti OR 'defin*':ab,ti OR 'identif*':ab,ti OR 'find*':ab,ti OR 'ascertain*':ab,ti OR 'diagnos*':ab,ti) AND 'algorithm*':ab,ti)) AND ('administrative claims (health care)'/exp OR 'administrative':ab,ti OR 'claim*':ab,ti OR 'routinely collected health data'/exp OR 'routinely collected':ab,ti OR 'electronic data':ab,ti OR 'computer* data':ab,ti OR 'electronic health record'/exp OR 'electronic medical record system'/exp OR 'medical information system'/exp OR 'electronic health*':ab,ti OR 'electronic medical':ab,ti OR 'computer* health*':ab,ti OR 'computer* medical':ab,ti) AND ('validation study'/exp OR 'reproducibility'/exp OR 'sensitivity and specificity'/exp OR 'predictive value'/exp OR 'receiver operating characteristic'/exp OR 'valid*':ab,ti OR 'agree*':ab,ti OR 'concordan*':ab,ti OR 'reproducib*':ab,ti OR 'sensitivity':ab,ti OR 'specificity':ab,ti OR 'accuracy':ab,ti OR 'positive predictive value':ab,ti OR 'ppv':ab,ti OR 'negative predictive value':ab,ti OR 'npv':ab,ti OR 'diagnostic odds ratio':ab,ti OR 'c index':ab,ti OR 'c-index':ab,ti OR 'auroc':ab,ti OR 'roc curve*':ab,ti OR 'roc analys*':ab,ti OR 'receiver operating':ab,ti OR 'receiver-operating':ab,ti OR 'receiver operator':ab,ti OR 'receiver-operator':ab,ti OR 'area under curve':ab,ti OR 'area under the curve':ab,ti)) AND ('heart failure'/exp OR 'heart failure':ab,ti OR 'cardiac failure':ab,ti OR 'ventricular failure':ab,ti OR 'myocardial failure':ab,ti OR 'heart insufficienc*':ab,ti OR 'cardiac insufficienc*':ab,ti OR 'ventricular insufficienc*':ab,ti OR 'myocardial insufficienc*':ab,ti OR 'heart dysfunction*':ab,ti OR 'cardiac dysfunction*':ab,ti OR 'ventricular dysfunction*':ab,ti OR 'myocardial dysfunction*':ab,ti OR 'heart disfunction*':ab,ti OR 'cardiac disfunction*':ab,ti OR 'ventricular disfunction*':ab,ti OR 'myocardial disfunction*':ab,ti OR 'congestive heart disease*':ab,ti)

PubMed

(((case definition[Title/Abstract]) OR(case-definition[Title/Abstract]) OR(case detection[Title/Abstract]) OR(case-detection[Title/Abstract]) OR(case identification[Title/Abstract]) OR(case-identification[Title/Abstract]) OR(case-finding[Title/Abstract]) OR(case finding[Title/Abstract]) OR(case-ascertainment[Title/Abstract]) OR(case ascertainment[Title/Abstract]) OR(disease definition[Title/Abstract]) OR(disease-definition[Title/Abstract]) OR(disease detection[Title/Abstract]) OR(disease-detection[Title/Abstract]) OR(disease identification[Title/Abstract]) OR(disease-identification[Title/Abstract]) OR(disease-finding[Title/Abstract]) OR(disease finding[Title/Abstract]) OR(disease-ascertainment[Title/Abstract]) OR(disease ascertainment[Title/Abstract]))OR(((detect*[Title/Abstract]) OR(defin*[Title/Abstract]) OR(identif*[Title/Abstract]) OR(find*[Title/Abstract]) OR(ascertain*[Title/Abstract]) OR(diagnos*[Title/Abstract]))AND(algorithm*[Title/Abstract])))AND((Administrative Claims, Healthcare[MeSH Terms]) OR(administrative[Title/Abstract]) OR(claim*[Title/Abstract]) OR(Routinely Collected Health Data[MeSH Terms]) OR(routinely collected[Title/Abstract]) OR(electronic data[Title/Abstract]) OR(computer* data[Title/Abstract]) OR(Electronic Health Records[MeSH Terms]) OR(Medical Records Systems, Computerized[MeSH Terms]) OR(Health Information Systems[MeSH Terms]) OR(electronic health*[Title/Abstract]) OR(electronic medical[Title/Abstract]) OR(computer* health*[Title/Abstract]) OR(computer* medical[Title/Abstract]))AND((Validation?Studies as Topic[MeSH Terms]) OR (Reproducibility of Results[MeSH Terms]) OR (Sensitivity and Specificity[MeSH Terms]) OR (Predictive?Value?of Tests[MeSH Terms]) OR (ROC Curve[MeSH Terms]) OR (Area Under Curve[MeSH Terms]) OR (valid*[Title/Abstract]) OR (agree*[Title/Abstract]) OR(concordan*[Title/Abstract]) OR (reproducib*[Title/Abstract]) OR (sensitivity[Title/Abstract]) OR (specificity[Title/Abstract]) OR (accuracy[Title/Abstract]) OR (positive predictive value[Title/Abstract]) OR (PPV[Title/Abstract]) OR (negative predictive value[Title/Abstract]) OR (NPV[Title/Abstract]) OR (diagnostic odds ratio[Title/Abstract]) OR (c index[Title/Abstract]) OR (c-index[Title/Abstract]) OR (auroc[Title/Abstract]) OR (roc curve*[Title/Abstract]) OR (roc analys*[Title/Abstract]) OR (receiver operating[Title/Abstract]) OR (receiver-operating[Title/Abstract]) OR (receiver operator[Title/Abstract]) OR (receiver-operator[Title/Abstract]) OR (area under curve[Title/Abstract]) OR (area under the curve[Title/Abstract])) AND (((Heart Failure[MeSH Terms]) OR (heart failure[Title/Abstract]) OR (cardiac failure[Title/Abstract]) OR (ventricular failure[Title/Abstract]) OR (myocardial failure[Title/Abstract]) OR (heart insufficienc*[Title/Abstract]) OR (cardiac insufficienc*[Title/Abstract]) OR (ventricular insufficienc*[Title/Abstract]) OR (myocardial insufficienc*[Title/Abstract]) OR (heart dysfunction*[Title/Abstract]) OR (cardiac dysfunction*[Title/Abstract]) OR (ventricular dysfunction*[Title/Abstract]) OR (myocardial dysfunction*[Title/Abstract]) OR (heart disfunction*[Title/Abstract]) OR (cardiac disfunction*[Title/Abstract]) OR (ventricular disfunction*[Title/Abstract]) OR (myocardial disfunction*[Title/Abstract]) OR (congestive heart disease*[Title/Abstract])))