Table 2.
Comparison of the Two Groups in Terms of change in VAS over time (n = 118).
VAS | Group |
P value for comparison of the two groups at each of the time points (t-test) | |||
---|---|---|---|---|---|
PRP |
Steroid |
||||
Mean (SD) | Median (IQR) | Mean (SD) | Median (IQR) | ||
Pre-Injection | 9.40 (0.72) | 10.00 (1.00) | 9.38 (0.74) | 10.00 (1.00) | 0.922 |
2 Weeks | 6.71 (0.99) | 6.50 (1.00) | 7.30 (1.09) | 7.00 (2.00) | 0.003 |
4 Weeks | 3.98 (1.03) | 4.00 (1.00) | 4.93 (1.07) | 5.00 (2.00) | <0.001 |
12 Weeks | 1.45 (0.75) | 1.00 (1.00) | 2.72 (0.98) | 3.00 (1.00) | <0.001 |
24 Weeks | 0.52 (0.60) | 0.00 (1.00) | 1.92 (1.03) | 2.00 (1.00) | <0.001 |
P Value for change in VAS over time within each group (Repeated Measures ANOVA) | <0.001 | <0.001 | |||
Overall P Value for comparison of change in VAS over time between the two groups (Generalized Estimating Equations Method) | <0.001 |