Table 2.

Subjective measures of PFP severity in PFP subjects and controls. The average value is listed with one standard deviation in parentheses.

Measure	PFP	Controls
Knee pain score (out of 100)††	61.1 (16.5)	100 (0)
Visual analog score, pain on an average day (out of 10) ‡	3.5 (2.6)	0 (0)
Visual analog score, pain at the end of the day (out of 10) ‡	4.7 (3.2)	0 (0)
Visual analog score, pain during provocative activities (out of 10) ‡	7.0 (2.6)	0 (0)

^††Lower scores correspond to increased severity of PFP and decreased functionality

^‡Higher scores correspond to increased severity of PFP