Data Processing and Analysis
The primary aimof this studywas to compare 8-week changes
in pain scores measured by the VAS in each group and between
the 2 groups. A secondary aim was to compare 8-week
changes in QOL in each group and between the groups.
The results were analyzed using the SPSS software (SPSS
for Windows; SPSS, Inc., Chicago, IL). The level of significance
in all analyses was set at P less than .05.