Table 2.
Data sources used in the EHR case study
| Data type | Name | Total records | Total records with social history | Unique patients |
|---|---|---|---|---|
| Structured | Flowsheets | 83 235 | – | 7875 |
| Social history | 733 591 | – | 297 581 | |
| Occupation history | 120 733 | – | 42 115 | |
| Employment status | 560 940 | – | 560 940 | |
| Total | 1 498 499 | – | 618 363 | |
| Free-Text | Progress Notes | 3 063 025 | 283 423 | 140 820 |
| ED Notes | 147 114 | 19 120 | 14 619 | |
| Social History Doc. | 127 863 | 127 863 | 127 863 | |
| Total | 3 338 002 | 430 406 | 225 089 |
Note: “Total Records” indicates the total counts of structured data records and free-text documents. “Total Records with Social History” indicates the number of progress and emergency (ED) notes with social history sections and number of social history entries.