Items | N1 group (n = 17) | N2 group (n = 17) | t/χ2/z | p |
---|---|---|---|---|
Gender (male/female) | 11/6 | 10/7 | 0.125 | 0.724 |
Age (years) | 32.29 ± 14.94 | 30.41 ± 11.19 | 0.417 | 0.680 |
BMI | 24.04 ± 3.88 | 23.89 ± 7.39 | 0.103 | 0.918 |
Time from onset to operation (weeks) | 9.14(2.5,13.5) | 3.85(1.93,9.29) | -1.17 | 0.245 |
Affected side of the knee (left/right) | 11/6 | 11/6 | 0 | 1 |
Meniscus injury | 9/8 | 8/9 | 0.118 | 0.732 |
Operation time (min) | 98.94 ± 31.67 | 97.47 ± 30.04 | 0.139 | 0.890 |
Amount of operative bleeding (mL) | 30.88 ± 11.21 | 30.59 ± 15.50 | 0.063 | 0.950 |
Hospitalization day (days) | 6.53 ± 1.70 | 6.53 ± 1.70 | -1.291 | 0.206 |