Standard deviation method | Study 1 | Study 2 | Study 3 |
---|---|---|---|
WOMAC Pain subscale score | |||
Pooled SD at baseline | 1.19 | 0.92 | 1.11 |
Pooled SD at the time when the primary endpoints were assessed | 2.66 | 2.19 | 2.42 |
Median pooled SD from baseline to the time when the primary endpoints were assessed | 2.56 | 2.05 | 2.25 |