Table 1.
Demographic data for the 37 participants with and the 37 matched participants without medial compartment structural progression
| Progressor cases | Non-progressor controls | ||||||
|---|---|---|---|---|---|---|---|
| All (N=37) | KLG 2 (N=21) | KLG 3 (N=16) | All (N=37) | KLG 2 (N=21) | KLG 3 (N=16) | ||
| Mean ± SD | Mean | Mean | Mean | Mean | Mean | ||
| Age | [years] | 64.7 ± 8.0 | 65.0 ± 7.1 | 64.3 ± 9.3 | 64.6 ± 9.8 | 61.2 ± 7.8 | 69.1 ± 10.7 |
| Weight | [kg] | 82.8 ± 13.9 | 84.3 ± 14.8 | 80.8 ± 12.8 | 82.9 ± 13.9 | 86.4 ± 15.9 | 78.3 ± 9.3 |
| Height | [cm] | 165.6 ± 7.9 | 165.1 ± 7.6 | 166.4 ± 8.5 | 165.6 ± 7.7 | 165.3 ± 7.3 | 166.0 ± 8.5 |
| BMI | [kg/m2] | 30.2 ± 4.6 | 30.9 ± 4.9 | 29.2 ± 4.2 | 30.2 ± 4.4 | 31.5 ± 5.0 | 28.4 ± 2.9 |
| WOMAC | [1…20] | 3.5 ± 3.8 # | 3.4 ± 4.5 | 3.7 ± 2.8 | 2.8 ± 3.3 | 2.6 ± 3.9 | 3.0 ± 2.3 |
| N (%) | N (%) | N (%) | N (%) | N (%) | N (%) | ||
| Sex | Male | 13 (35.1) | 6 (28.6) | 7 (43.8) | 13 (35.1) | 6 (28.6) | 7 (43.8) |
| Female | 24 (64.9) | 15 (71.4) | 9 (56.3) | 24 (64.9) | 15 (71.4) | 9 (56.3) | |
| KLG | 2 | 21 (56.8) | 21 (100.0) | 0 (0.0) | 21 (56.8) | 21 (100.0) | 0 (0.0) |
| 3 | 16 (43.2) | 0 (0.0) | 16 (100.0) | 16 (43.2) | 0 (0.0) | 16 (100.0) | |
| med JSN | 0 | 7 (18.9) | 5 (23.8) | 2 (12.5) | 14 (37.8) | 10 (47.6) | 4 (25.0) |
| 1 | 17 (45.9) | 16 (76.2) | 1 (6.3) | 11 (29.7) | 11 (52.4) | 0 (0.0) | |
| 2 | 13 (35.1) | 0 (0.0) | 13 (81.3) | 12 (32.4) | 0 (0.0) | 12 (75.0) | |
| lat JSN | 0 | 32 (86.5) | 19 (90.5) | 13 (81.3) | 28 (75.7) | 17 (81.0) | 11 (68.8) |
| 1 | 2 (5.4) | 2 (9.5) | 0 (0.0) | 4 (10.8) | 4 (19.0) | 0 (0.0) | |
| 2 | 3 (8.1) | 0 (0.0) | 3 (18.8) | 5 (13.5) | 0 (0.0) | 5 (31.3) | |
KLG: Kellgren and Lawrence grade; BMI: Body mass index; WOMAC: Western Ontario and McMasters Universities pain scale (range: 0…20); med/lat JSN: medial lateral OARSI joint space narrowing score;
#
p<0.05 for differences between progressor cases and non-progressor controls.