Table 2 The number of unstructured and structured abstracts in Group A, the original set of abstracts and Group R1, the primary RCT reports from the randomly selected subset.
| Â | Number of Abstracts in A | Number of Abstracts in R1 |
|---|---|---|
Total abstracts | 7620 (100%) | 336 (100%) |
Unstructured abstracts | 3179 (42%) | 106 (32%) |
Structured abstracts | 4441 (58%) | 230 (68%) |
Structured abstracts with explicit heading for intervention | 283 (3.7%) | 14 (4.2%) |
Structured abstracts with explicit heading for population | 433 (5.7%) | 17 (5.0%) |
Structured abstracts with explicit heading for outcome measures | 329 (4.3%) | 18 (5.3%) |
Structured abstracts with explicit heading for all three subheadings | 162 (2.2%) | 11 (3.3%) |