Table 1.
Baseline characteristics of the partic i p ants and non-participants.
| Characteristic | Partic ipants (n = 134) | Non-participants (n = 50) |
|---|---|---|
| Age in years, mean (SD) | 40.2 (12.2) | 40.4 (11.3) |
| Males, n (%) | 74 (55) | 32 (67) |
| Females, n (%) | 60 (45) | 18 (33) |
| BMI, mean (SD) | 26.4 (4.3) | 28.1 (4.8) |
| SF-36 general health, mean (SD) | 76.1 (18.0) | 79.9 (15.6) |
| CPV, mean (SD) | 34.0 (6.8) | 34.1 (7.5) |
| Tampa score, mean (SD) | 7.2 (7.7) | 7.8 (9.4) |
| Symptom side right, n (%) | 70 (52) | 16 (34) |
| Pain severity (0–10), mean (SD) | 4.7 (2.4) | 4.2 (2.5) |
| Lysholm knee function score (0–100), mean S (D) | 62 (22) | 67 (23) |
| Employed, n (%) | 113 (84) | 39 (73) |
| Sports participation, n (%) | 97 (72) | 29 (58) |
| Cause of trauma | ||
| Work related, n (%) | 20 (15) | 9 (18) |
| Onset during sports activity, n (%) | 61 (46) | 17 (34) |
| No lesion on MR imaging, n (%) | 52 (39) | na |
| Any lesion on MR imaging, n (%) | 82 (61) | na |
| Isolated meniscal teara | 18 (13) | na |
| Isolated cruciate ligament lesionb | 10 (8) | na |
| Isolated collateral ligament lesionc | 18 (13) | na |
| Combination of meniscal tears and/or ligament lesion | 36 (27) | na |
a
Horizontal, longitudinal, radial or complex meniscal tear.
b
Partial or complete anterior or posterior cruciate ilgament lesion.
c
Partial or complete medial or lateral collateral ligament lesion. CP V = co ping with pain. na = not available because of no n-parti cipation n i the MRI study.