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J Am Med Inform Assoc 15:25-28 doi:10.1197/jamia.M2437
  • Focus On Medical Record Identification of Smoking Status

Mayo Clinic NLP System for Patient Smoking Status Identification

Table 2

Best Results. Informal evaluation set up: training on Set 1; testing on Set 2.Formal evaluation set up: training on Set 1 and Set 2; testing on Set 3. (Numbers in brackets are 95% exact confidence intervals)

Training Set Test Set No. Documents Correctly Classified by System Total No. Documents Classified by System No. Documents in Test Set Precision Recall F-score Baseline
Set 1 Set 2 126 136 136 92.64 (86.89-96.42) 92.64 (86.89-96.42) 92.64 (86.89-96.42) 63.31 (56.05-72.70)
Set 1 and Set 2 Set 3 89 104 104 85.57 (77.33-91.70) 85.57 (77.33-91.70) 85.57 (77.33-91.70) 60.58 (50.51-70.02)

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