Table 3. Comparison of the Differences of Means Between the Evaluation Steps for Platelet-Rich Plasma and Physical Treatment Groups a.
| Evaluation Steps (a, b, c) | PRP Group (n = 30), Difference of Means | PT Group (n = 32), Difference of Means |
|---|---|---|
| Flexion | ||
| a-b | 14.93 | 20.94 b |
| b-c | 19.63 b | 25.62 b |
| a-c | 34.56 b | 46.56 b |
| Extension | ||
| a-b | 2.33 | 8.43 b |
| b-c | 0.83 | 5.93 b |
| a-c | 3.16 | 14.37 b |
| Abduction | ||
| a-b | 9.66 | 22.66 b |
| b-c | 15.50 | 21.87 b |
| a-c | 25.16 b | 44.53 b |
| Adduction | ||
| a-b | 4.33 b | 5.66 b |
| b-c | 5.50 b | 6.81 b |
| a-c | 9.83 b | 12.47 b |
| External Rotation | ||
| a-b | 3.83 | 12.66 b |
| b-c | 5.16 | 16.09 b |
| a-c | 9.00 b | 28.75 b |
| Internal Rotation | ||
| a-b | 10.33 b | 15.31 b |
| b-c | 7.66 b | 12.50 b |
| a-c | 18.50 b | 27.81 b |
| VAS Activity | ||
| a-b | 2.36 b | 2.59 b |
| b-c | 2.73 b | 1.78 b |
| a-c | 5.10 b | 4.37 b |
| VAS Rest | ||
| a-b | 1.30 b | 1.66 b |
| b-c | 1.27 b | 1.03 b |
| a-c | 2.57 b | 2.69 b |
| VAS Sleep | ||
| a-b | 2.70 b | 2.13 b |
| b-c | 2.73 b | 1.00 |
| a-c | 5.43 b | 3.13 b |
| DASH | ||
| a-b | 14.91 b | 12.24 b |
| b-c | 15.73 b | 10.17 b |
| a-c | 30.64 b | 22.41 b |
| DASH Work | ||
| a-b | 16.33 | 14.69 b |
| b-c | 4.50 | 10.78 b |
| a-c | 20.83 b | 25.47 b |
| BECK | ||
| a-b | 1.85 | 1.24 |
| b-c | 2.91 | 2.43 |
| a-c | 4.76 | 3.67 |
a Abbreviations: a, Before the treatment; b, After the treatment; c, the 12th month after the treatment; a-b, difference of means before the treatment and at the end of the treatment; b-c, difference of means at the end of the treatment and at the 12th month after the treatment; a-c, difference of means before the treatment and at the 12th month after the treatment; BECK, Beck depression inventory score; DASH, disabilities of arm, shoulder and hand; DASH work, DASH work model score; PRP, platelet-rich plasma; PT, physical therapy; VAS, visual analog scale.
b Significance level: P < 0.05.