The change in pain severity was compared using Chi-square test.

Following explanation, a change in severity was seen for PS at rest [

(9, N- 360) = 441,

< 0.001] and at movement [X

(9, N- 360) = 508,

< 0.001]. Overall, a change in PS severity was seen in 162 patients (45%). A decrease and an increase in the severity…[Read more]