Table 1
Scores on knowledge test (% correct answers) and performance indicators (% correct indicators) for the experimental and reference groups before and after a training programme for occupational physicians on rehabilitation of patients with low back pain
|
Experimental group n=17–18 |
Reference group n=12–20 | Difference between groups | ||
| Time 1: Before training | Percentage correct answers knowledge test (mean (SD)) | 70 (11.7) | 67 (10.4) | 3 |
| Percentage correct performance indicators (mean (SD)) | 80 (8.4) | 87 (7.2) | −7 | |
| Time 2: After training experimental group only | Percentage correct answers knowledge test (mean (SD)) | 85 (6.8) | 73 (6.7) | 12 |
| Percentage correct performance indicators (mean (SD)) | 91 (5.8) | 83 (7.4) | 8 | |
| Gain score before and after training (times 2−1) | Difference in percentage correct answers knowledge test (95% CI) | 15 (8 to 22)1-165 | 6 (2 to 11)1-160 | 9 (0.4 to 16)1-150 |
| Difference in percentage correct performance indicators (95% CI) | 11 (7 to 15)1-165 | −4 (−9 to 2) NS | 15 (8 to 21)1-165 | |
| Time 3: After training reference group | Percentage correct answers knowledge test (mean (SD)) | 84 (5.7) | ||
| Gain score before (time 2) and after (time 3) training reference group | Difference in percentage correct answers knowledge test (95% CI) | 11 (7 to 15)1-165 |
