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. Author manuscript; available in PMC: 2020 Sep 1.
Published in final edited form as: Int J Med Inform. 2019 May 23;129:13–19. doi: 10.1016/j.ijmedinf.2019.05.018

Table 4:

NLP application accuracy for eligibility criteria information extraction

Rule-based version SVM-based version
Criterion Recall (%) Precision (%) Recall (%) Precision (%)
ECOG status 94.2 94.2 92.8 100.0
Estrogen receptor 91.5 53.4 86.9 90.9
Progesterone receptor 95.6 69.7 94.1 86.7
Human Epidermal Growth Factor Receptor 2 63.0 36.4 87.8 82.0
Postmenopausal 88.0 72.1 86.9 84.1
AJCC tumor stage (T) 84.7 83.8 95.5 97.9
AJCC nodes stage (N) 79.6 82.6 72.7 95.7
AJCC metastasis stage (M) 94.5 37.7 87.5 87.4
Overall (micro-average) 84.6 64.4 90.9 89.7