Table 1.

Adjectival 0–4 point scales for pain intensity, frequency of pain and frequency of impaired function

Score value	Intensity of pain	Frequency of pain	Frequency of impairment
0	no pain	never painful	never impairment
1	slight pain	sometimes painful	sometimes impairment
2	moderate pain	regularly painful	regularly impairment
3	severe pain	often painful	often impairment
4	extreme pain	permanently painful	permanently impairment