Table 1.
Baseline demographic parameters and baseline clinical scores and their evolution over 1.5 years of subjects without (KL 0/1) versus with radiographic evidence of hip osteoarthritis (KL 2/3)
| Parameter | Kellgren/Lawrence
score (KL) |
P- value* |
||
|---|---|---|---|---|
| KL 0/1 | KL 2/3 | |||
| Group size (n) | 36 | 18 | ||
| Female sex (n; % of group) |
18 (50.0%) | 5 (27.8%) | .120 | |
| Age (years; mean ± SD) | 43.7 ± 12.8 | 54.4 ± 11.2 | .004 | |
| BMI (kg/m2; mean ± SD) |
23.9 ± 3.2 | 24.1 ± 3.2 | .834 | |
| Hip side (left; n; % of group) |
18 (50.0%) | 9 (50.0%) | 1.000 | |
| Baseline Harris Hip Score |
(Median; IQR) | 100 (96–100) | 97 (88.5–100) | 0.057 |
| Baseline HOOS pain score |
(Median; IQR) | 100 (95–100) | 97.5 (78.5– 100) |
0.041 |
| Baseline HOOS other symptoms |
(Median; IQR) | 97.5 (90–100) | 95 (83.5–100) | 0.284 |
| Baseline HOOS activities of daily living |
(Median; IQR) | 100 (97–100) | 95 (83.5–100) | 0.114 |
| Baseline HOOS sports | (Median; IQR) | 100 (89–100) | 93.5 (81–100) | 0.044 |
| Baseline HOOS quality of life |
(Median; IQR) | 100 (81–100) | 90 (81–100) | 0.160 |
| Evolution of Harris Hip Score |
Delta values (median; IQR) |
0 (−0.5–1) | 0 (−6.5–1.5) | 0.652 |
| Worsening (n; % of group) |
7 (24.1%) | 6 (37.5%) | 0.494 | |
| Evolution of HOOS pain score |
Delta values (median; IQR) |
0 (0–0) | −1.5
(−7.5– 8.5) |
0.562 |
| Worsening (n; % of group) |
6 (16.7%) | 9 (50%) | 0.010 | |
| Evolution of HOOS other symptoms score |
Delta values (median; IQR) |
0 (−3.5–5) | −2.5 (−10–5) | 0.295 |
| Worsening (n; % of group) |
9 (25.0%) | 9 (50.0%) | 0.047 | |
| Evolution of HOOS activities of daily living |
Delta values (median; IQR) |
0 (0–0) | 0 (−3–2) | 0.419 |
| Worsening (n; % of group) |
7 (19.4%) | 8 (44.4%) | 0.053 | |
| Evolution of HOOS sports |
Delta values (median; IQR) |
0 (0–0) | 0 (−18.5–9.5) | 0.724 |
| Worsening (n; % of group) |
8 (22.2%) | 6 (33.3%) | 0.512 | |
| Evolution of HOOS quality of life |
Delta values (median; IQR) |
0 (0–0) | −3.5
(−15.5– 14) |
0.502 |
| Worsening (n; % of group) |
8 (22.2%) | 9 (50.0%) | 0.038 | |
*
Fisher’s exact test was used for categorical data presence/absence of abnormalities or progression yes/no), Student’s t test for numerical data, and the exact Mann-Whitney U test for nonparametric testing. Worsening of clinical scores is any change <0 of absolute Harris Hip Score or HOOS subscales over time.