Table 1.
Comparison of the two groups in general information
| Data | Observation group (n = 30) | Control group (n = 30) | t/χ2 | P |
|---|---|---|---|---|
| Age (years, x̅±s) | 34.60±6.13 | 35.67±5.52 | 0.708 | 0.482 |
| Gender [n (%)] | 0.601 | 0.438 | ||
| Male | 17 (56.67) | 14 (46.67) | ||
| Female | 13 (43.33) | 16 (53.33) | ||
| BMI (kg/m2, x̅±s) | 22.78±1.85 | 23.62±2.25 | 1.588 | 0.118 |
| Underlying disease [n (%)] | ||||
| Hypertension | 17 (56.67) | 22 (73.33) | 1.832 | 0.176 |
| Diabetes | 6 (20.00) | 10 (33.33) | 1.364 | 0.243 |
| Injury area [n (%)] | 0.300 | 0.584 | ||
| Red and white area | 9 (30.00) | 11 (36.67) | ||
| White area | 21 (70.00) | 19 (63.33) | ||
| Nature of injury [n (%)] | 1.714 | 0.190 | ||
| Acute | 20 (66.67) | 15 (50.00) | ||
| Chronic | 10 (33.33) | 15 (50.00) | ||
| Injury side [n (%)] | 1.699 | 0.196 | ||
| Left knee | 12 (40.00) | 17 (56.67) | ||
| Right knee | 18 (60.00) | 13 (43.33) |
Note: BMI: body mass index.