Table 3.

Pain intensity measured using the numerical scale, presented as mean and standard deviation, in chronic pain subjects.

Pain intensity measured by numerical scalea	CP (n = 190) Mean ± SD
Highest intensity in last 24 hours	6.23 ± 2.81
Lowest intensity in last 24 hours	2.45 ± 2.23
Moderate intensityb in last 24 hours	4.41 ± 2.44
Intensity at the moment	2.22 ± 2.78

%, percentage; CP, chronic pain lasting > 90 days; SD, standard deviation; n, frequency. Only frequency and percentage calculations were made.

^aNumerical scale from 0 to 10.

^bAttributed by the subject himself.