Baseline data.

<p>Baseline data.</p

Diagnostic performance of troponin I for identification of patients needing coronary intervention.

<p>Diagnostic performance of troponin I for identification of patients needing coronary intervention.</p

ROC curve for identification significant coronary stenosis.

<p>Receiver operating characteristic curves in patients with acute chest pain and wide QRS complex for identification of individuals needing coronary intervention by troponin I values determined upon admission. Area under the curve for troponin I is calculated with 0.849 (0.807–0.892) and Youden index with 0.56 (0.50–0.67).</p

Sensitivity and Specificity of troponin I to identify individuals needing a coronary intervention.

<p>Sensitivity and Specificity of troponin I determined upon admission in patients with suspected acute coronary syndrome and wide QRS complex to identify individuals needing a coronary intervention. X-axis is presented in logarithmic scale. Lines represent different troponin I thresholds associated with 90% sensitivity (A; 14 ng/L); 90% specificity (C; 96 ng/L) or with highest sum of sensitivity and specificity (B; 41 ng/L).</p

Troponin I at admission.

<p>Concentration of troponin I determined upon presentation in patients with acute chest pain and wide QRS complex in respect to presence of an acute coronary syndrome with need for coronary intervention compared to patients not needing a coronary intervention. Troponin I was available in 417 patients, data is presented log-transformed. Lines represent different troponin I thresholds associated with 90% sensitivity (A; 14 ng/L); 90% specificity (C; 96 ng/L) or unweighted with highest sum of sensitivity and specificity (B; 41 ng/L) for discrimination of patients needing a coronary intervention.</p