Table 6.
Distribution of the number of UMLS terms in the 1,437 eligibility features
| Class/Category (M=Number of features per category) | % of exact UMLS match1 | %Contain unmatched terms2 |
|---|---|---|
|
Disease-Characteristic Features
| ||
| Biopsy (M=10) | 100% | 0% |
| Device (M=11) | 81.82% | 18.18% |
| Diagnostic Test (M=34) | 64.71% | 35.29% |
| Disease (M=550) | 87.27% | 12.73% |
| Laboratory Variable (M=87) | 90.80% | 9.20% |
| Medication (M=251) | 94.42% | 5.58% |
| Procedure (M=70) | 87.14% | 12.86% |
| Staging Info (M=102) | 87.25% | 12.75% |
| Surgery (M=55) | 74.55% | 25.45% |
| Therapy (M=100) | 77.00% | 23.00% |
| Total within Disease-Characteristic | 87.01% (M=1,105) | 12.99% (M=165) |
|
| ||
| Patient-Characteristic Features | ||
|
| ||
| Accepts Healthy Volunteers (M=1) | 0% | 100% |
| Age (M=17) | 0% | 100% |
| Gender (M=2) | 0% | 100% |
| Life Expectancy (M=10) | 100% | 0% |
| Menopause (M=6) | 100% | 0% |
| Other Patient Characteristic (M=131) | 34.35% | 65.65% |
| Total within Patient-Characteristic | 36.53% (M=61) | 63.47% (M=106) |
|
| ||
| Grand Total (M=1437) | 81.14% (M=1,166) | 18.86% (M=271) |
1
Exact UMLS match indicates that all terms in the feature were mapped to UMLS concepts.
2
‘% contain unmatched terms’ indicates the percentage of features per category that were not exactly matched to the UMLS.