Table 3.
Number of patients achieved study outcomesa and comparison of relative risk (RR) and number needed to treat (NNT) between the two groups based on study outcomes (n = 54)
| Clinical Values | ESWT (n = 27) | Corticosteroid TPI (n = 27) | MD (ESWT-Corticosteroid)(95% CI) P Value † |
|
|---|---|---|---|---|
| Mean ± SD | Mean ± SD | |||
| ODI | Week 2 | 6.37 ± 0.75 | 10.41 ± 0.89 |
−4.56 (−6.01 to − 0.89) 0.007 |
| Week 4 | 8.18 ± 1.05 | 4.04 ± 0.66 |
4.63 (1.14 to 8.11) 0.002 |
|
| PPT | Week 2 | 5.33 ± 0.76 | 9.30 ± 0.78 |
−4.33 (− 7.27 to − 3.40) 0.001 |
| Week 4 | 6.22 ± 0.89 | 4.96 ± 0.69 |
1.11 (− 1.94 to 3.72) 0.379 |
|
| SF-36 | Week 2 | 7.33 ± 1.35 | 5.78 ± 1.20 |
2.37 (− 6.62 to 1.87) 0.672 |
| Week 4 | 9.41 ± 1.71 | 1.70 ± 1.02 |
8.12 (4.83 to 12.20) < 0.001 |
|
| VAS | Week 2 | 1.81 ± 0.16 | 3.70 ± 0.32 |
−2.30 (−3.16 to − 1.43) < 0.001 |
| Week 4 | 2.52 ± 0.29 | 1.78 ± 0.19 |
0.71 (−0.36 to 1.23) 0.109 |
|
Abbreviations: ESWT Extracorporeal shockwave, TPI Trigger point injection, SD standard deviation, MD mean difference, CI confidence interval, ODI Oswestry disability index, PPT Pressure Pain Threshold, SF-36 Short Form (36) Health Survey, VAS Visual Analogue Scale
Symbols: †P values obtained from Mixed ANOVA test