Table 11 Distribution of UMLS semantic groups assigned to covariates
From: Mining characteristics of epidemiological studies from Medline: a case study in obesity
Semantic group | Frequency | % |
|---|---|---|
Physiology | 2,381 | 43.2 |
Concepts/ideas | 1,044 | 18.9 |
Disorders | 783 | 14.2 |
Activities/behaviors | 591 | 10.7 |
Living beings | 232 | 4.2 |
Procedures | 184 | 3.3 |
Chemicals/drugs | 112 | 2.0 |
Geographic areas | 41 | 0.7 |
Occupations | 34 | 0.6 |
Objects | 29 | 0.5 |
Phenomena | 26 | 0.4 |
Genes/molecular | 17 | 0.3 |
Anatomy | 17 | 0.3 |
Other | 4 | 0.0 |
Organizations | 4 | 0.0 |
Devices | 1 | 0.0 |