Table 3.
Reporting of Numerical and Statistical Outcomes by Year
| Proportion of Abstracts (%) | ||
|---|---|---|
| 1986 | 1996 | |
| Information provided | ||
| Numerical and statistical | 40 | 72 |
| Numerical only | 43 | 17 |
| Statistical only | 2 | 8 |
| Neither | 15 | 3 |
| Numerical outcomes reported | ||
| No data | 17 | 11 |
| Raw data only | 76 | 55 |
| Raw data + relative | 7 | 21 |
| Raw data + absolute | 0 | 10 |
| Raw data + relative + absolute | 0 | 2 |
| Statistical information reported | ||
| No statistics | 39 | 8 |
| Reported significance | 19 | 12 |
| P value | 39 | 45 |
| 95% confidence interval | 0 | 13 |
| P value + confidence interval | 2 | 22 |