Table 2.

Mean and range of raw scores for evaluated instruments

Measurement Instrument	Mean Scores ± SD	Range Scores
Roland-Morris Questionnaire	13±5	3-22
Functional Rating Index Test	20.2±6.9	5-35
Functional Rating Index ReTest	19.1±7.3	5-35
Numeric Pain Rating Scale	5.9±1.9	1-8