Table II.
Time-dependent changes in study design and level of evidence (LOE) for resident-authored and international publications
| 1997 | 2007 | P-value | |
|---|---|---|---|
| Resident authors | 58 | 132 | |
| Basic science (% of residents) | 13 (22%) | 29 (22%) | 1.0 |
| Not basic science | 45 | 103 | |
| LOE I or II (% of non-basic science) | 1 (2.2%) | 21 (20%) | 0.005* |
| LOE III, IV, or V | 44 | 82 | |
| International publications | 46 | 115 | |
| Basic science (% of international) | 3 (6.5%) | 6 (5.2%) | 0.72 |
| Not basic science | 43 | 109 | |
| LOE I or II (% of non-basic science) | 9 (21%) | 30 (28%) | 0.54 |
| LOE III, IV, or V | 34 | 79 | |
| ALL publications | 219 | 352 | |
| Basic science (% of all) | 39 (18%) | 46 (13%) | 0.15 |
| Not basic science | 180 | 306 | |
| LOE I or II (% of non-basic science) | 18 (10%) | 67 (22%) | 0.004* |
| LOE III, IV, or V | 162 | 239 |
*
= statistically significant
Abbreviations: LOE = level of evidence