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Table 3 Fragment level performance of ExaCT

From: ExaCT: automatic extraction of clinical trial characteristics from journal publications

Information element # of expert's fragments exact match partial match
   precision recall precision recall
Eligibility criteria 103 1.00 1.00 1.00 1.00
Sample size 46 0.89 0.87 0.89 0.87
Start date of enrolment 32 1.00 1.00 1.00 1.00
End date of enrolment 31 1.00 1.00 1.00 1.00
Name of experimental treatment 54 0.72 0.54 0.97 0.72
Name of control treatment 55 0.83 0.80 0.89 0.85
Dose 103 0.91 0.90 0.96 0.97
Frequency of treatment 70 0.91 0.87 0.99 0.93
Route of treatment 53 0.94 0.92 0.94 0.92
Duration of treatment 45 0.84 0.91 0.86 0.93
Primary outcome name 38 0.97 0.97 0.97 0.97
Primary outcome time point 33 0.90 0.79 0.97 0.85
Secondary outcome name 43 0.93 0.88 1.00 1.00
Secondary outcome time point 25 0.72 0.72 0.92 0.92
Funding organization name 45 0.90 0.98 0.90 0.98
Funding number 7 1.00 1.00 1.00 1.00
Early stopping 2 1.00 1.00 1.00 1.00
Registration identifier of trial 29 1.00 1.00 1.00 1.00
Author name 49 1.00 1.00 1.00 1.00
Date of publication 49 1.00 1.00 1.00 1.00
DOI 47 1.00 1.00 1.00 1.00
Micro-average 959 0.93 0.91 0.96 0.94
Macro-average   0.93 0.91 0.96 0.95