Table 4

Performance of NLP-based ascertainment of Framingham HF phenotype

Sensitivity, % (95% CI)Specificity, % (95% CI)PPV, % (95% CI)Agreement, % (95% CI)
78.8 (72.8 to 83.9)81.7 (75.2 to 87.0)84.4 (79.5 to 89.3)80.0 (75.8 to 83.8)
  • Note types: emergency department notes, hospital admission notes and discharge summaries.

  • HF, heart failure; NLP, natural language processing; PPV, positive-predictive value.