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Number of abstracts and sentences for Structured (S) and Unstructured (U) abstract sets, including number of sentences per class.
| All | S | U | |
|---|---|---|---|
| # Abstracts | 1000 | 376 | 624 |
| # Sentences | 10379 | 4774 | 5605 |
| - Background | 2557 | 669 | 1888 |
| - Intervention | 690 | 313 | 377 |
| - Outcome | 4523 | 2240 | 2283 |
| - Population | 812 | 369 | 443 |
| - Study Design | 233 | 149 | 84 |
| - Other | 1564 | 1034 | 530 |
