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J Am Med Inform Assoc 14:736-745 doi:10.1197/jamia.M2130
  • The Practice of Informatics

Collection of Cancer Stage Data by Classifying Free-text Medical Reports

Table 10

Performance of System for Classifying Detailed Staging Factors

Experts vs. System
Agree Disagree
Stage Classifier YY NN YN NY Sensitivity Specificity Accuracy Kappa
T TS 93 67 3 13 0.97 0.84 0.91 0.81
VP 55 96 8 13 0.87 0.88 0.88 0.74
MB 0 171 0 2 1.00 0.99 0.99 0.00
CW 3 170 2 1 0.60 0.99 0.98 0.66
DIA 0 179 0 0 1.00 1.00 1.00 N/A
MEDP 0 176 0 0 1.00 1.00 1.00 N/A
PPER 0 178 0 0 1.00 1.00 1.00 N/A
GV 0 178 0 1 1.00 0.99 0.99 0.00
T41 0 170 2 0 0.00 1.00 0.99 0.00
T42 0 179 0 0 1.00 1.00 1.00 N/A
SEPN 5 148 3 13 0.62 0.92 0.91 0.34
N NONM 61 67 15 4 0.80 0.94 0.87 0.74
PLN 23 141 4 5 0.85 0.97 0.95 0.81
HLN 20 143 3 7 0.87 0.95 0.94 0.77
MLN 9 162 3 3 0.75 0.98 0.97 0.73
SCLN 5 171 1 1 0.83 0.99 0.99 0.83

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