Table 2.

Scale used for assessment of pain and function

Assessment of pain	Grade	Assessment of function
No pain	0	Returning to previous occupation
Intermittent pain not requiring analgesics	1	Returning to previous occupation or daily activities with mild limitations
Frequent mild pain occasionally requiring non-narcotic analgesics	2	Returning to previous occupation or daily activities with major limitations
Infrequent moderate pain requiring analgesics	3	Not completely returning to previous occupation and daily activities and needing energy saving life style
Intense pain occasionally requiring narcotic analgesics	4	Significant loss of function, limitations even in routine daily activities
Very intense pain requiring regular narcotic analgesic intake	5	Complete loss of function