Table 1. Mean (standard deviation) participant demographics and clinical intake parameters.
P-values are listed in the final column. In the top portion of the graph the P-values represent the comparison between the cohort with patellofemoral pain and the control cohort. The comparison was done for each age bracket independently. Thus, the P-value for the adult bracket is given first, then the P-value for the adolescent bracket is provided after the backslash. For the bottom portion of the graph, the P-value represents the comparison across age brackets for the cohort with patellofemoral pain.
| Adult | Adolescent | P-Value | ||||
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| PFP | Control | PFP | Control | |||
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| Knees (N) | 20 | 20 | 20 | 20 | NA | |
| Participants (n) | 20 | 20 | 20 | 16 | NA | |
| Age (years) | 28.1 (4.9) | 28.0 (4.8) | 13.9 (1.4) | 13.8 (1.3) | 0.95/0.67 | |
| (range) | 21.8-37.6 | 22.4-37.2 | 10.3-16.3 | 10.3- 16.0 | ||
| Weight (kg) | 61.4 (8.9) | 60.3 (8.2) | 50.1 (7.3) | 50.6 (8.6) | 0.71/0.84 | |
| Height (cm) | 164.4 (5.8) | 166.3 (7.8) | 161.0 (8.0) | 159.1 (10.0) | 0.38/0.52 | |
| BMI (kg/m2) | 22.7 (2.7) | 21.8 (2.8) | 19.3 (2.3) | 19.9 (2.4) | 0.33/0.43 | |
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| J-sign (n)* | 8Y/11N | NA | 15Y/4N | NA | 0.04 | |
| Q-angle (°) | 16.7 (4.5) | NA | 13.4 (3.6) | NA | 0.01 | |
| Lat. Hypermobility (mm)* | 6.8 (3.6) | NA | 7.2 (3.8) | NA | 0.92 | |
| Kujala Score | 73.8 (14.3) | NA | 64.5 (12.5) | NA | 0.15 | |
| VAS (typical day) | 37.4 (18.6) | NA | 43.3 (24.2) | NA | 0.41 | |
| VAS (during activities that invoke pain) | 67.4 (22.2) | NA | 73.9 (18.0) | NA | 0.37 | |
| Length of Pain (years) | 3.9 (3.0) | NA | 2.4 (1.9) | NA | 0.09 | |
*
Unable to measure certain subject in each cohort due to positive apprehension test.