Table 3.
Multivariate Cox Regression: Factors Impacting the Time to Achieve SCB
| Time to Achieve SCB (Hazard Ratio, 95% CI) | ||||||||
|---|---|---|---|---|---|---|---|---|
| IKDC | KOOS JR | KOOS Pain | KOOS PS | KOOS SX | KOOS QOL | KOOS ADL | KOOS Sport | |
| Workers’ compensation | 3.06 (1.17-7.99)∗ | |||||||
| Lateral tear | 2.58 (1.07-6.23)∗ | |||||||
| Bucket handle tear | 3.67 (1.25-10.77)∗ | |||||||
| Longitudinal tear | 4.14 (1.07-15.94)∗ | 7.99 (2.04-31.29)∗∗ | ||||||
| Transverse tear | 2.62 (1.12-6.16)∗ | 2.09 (1.05-5.16)∗ | 2.42 (1.18-4.95)∗ | |||||
| Root tear | 0.23 (0.07-0.77)∗ | 0.12 (0.02 -0.62) ∗ | ||||||
| Complex tear | 3.47 (1.55-7.81)∗∗ | |||||||
| Subsequent injection | 0.33 (0.14-0.81)∗ | 0.38 (0.17 -0.83) ∗ | ||||||
| Preoperative score | 0.98 (0.96-1.00)∗ | 0.98 (0.97-1.00)∗∗ | 0.97 (0.96-0.99)∗∗ | 0.97 (0.95 -0.98) ∗∗ | ||||
NOTE. The following variables were also found to be insignificant on Cox regression and were thus excluded from the table above: sex, age, body mass index, smoking status, diabetes, hypertension, thyroid, symptom duration, pre-existing arthritis, chronic tear, medial tear, discoid meniscus, flap tear, chondroplasty, and receipt of a subsequent procedure.
ADL, activities of daily living; IKDC, International Knee Documentation Committee score; JR, joint replacement; KOOS, Knee Injury and Osteoarthritis Outcome Score; PS, Physical Function Short Form; QOL, quality of life; SCB, ;substantial clinical benefit; Sx, symptoms.
Denotes P < 0.05.
Denotes P < 0.01; cells left blank denote nonsignificant relationships.