Table 2.
Bryan Disc subsidence independent risk factors identified by logistic regression.
| Simple Regression | Multiple Regression (Forward) | |||||
|---|---|---|---|---|---|---|
| OR | 95% CI | p Value | OR | 95% CI | p Value | |
| Age | 1.003 | (0.948, 1.061) | 0.916 | |||
| Gender | 1.127 | (0.432, 2.938) | 0.807 | |||
| Smoking | 0.814 | (0.292, 2.265) | 0.693 | |||
| pre-OP Mean-DH | 0.186 | (0.103, 0.336) | <0.001 ** | 0.151 | (0.059, 0.391) | <0.001 ** |
| ΔAP-mm | 35.557 | (0.862, 1467.464) | 0.06 | |||
| ΔLat-mm | 1.059 | (0.056, 20.097) | 0.969 | |||
| ΔDH-mm | 2.616 | (1.707, 4.011) | <0.001 ** | 0.797 | (0.395, 1.61) | 0.528 |
| AP ratio | 0.001 | (0, 2.301) | 0.078 | |||
| Lat ratio | 0.66 | (0, 1470.868) | 0.916 | |||
| Contact footprint of implant | 0.016 | (0, 6.824) | 0.18 | |||
p-Value < 0.05 was considered statistically significant. The 95% CI range is provided in brackets. ** p < 0.01. OR, odds ratio; CI, Confidence Interval; pre-OP, pre-operation; DH, disc height; CDA, cervical disc arthroplasty; ΔAP, difference in width between endplate and CDA in AP view; ΔLat, difference in width between endplate and CDA in Lat view; ΔDH, difference in height before and after CDA in Lat view; AP, anteroposterior; Lat, lateral.