Variables* | k-line (+) | K-line (−) |
|---|
OR | 95% CI | P value | OR | 95% CI | P value |
|---|
Post-operative JOA score | 0.559 | 0.183–1.712 | 0.309 | 0.110 | 0.009–1.351 | 0.084 |
Operative time | 0.770 | 0.265–2.238 | 0.631 | 0.875 | 0.059–12.962 | 0.922 |
Blood loss | 0.244 | 0.100–0.597 | 0.002 | 0.659 | 0.112–3.878 | 0.644 |
JOA score’s RR | 1.642 | 0.608–4.437 | 0.328 | 2.829 | 0.176–45.549 | 0.463 |
- Stratification factors: K-line (+) and (−). Independent variables: type of laminoplasty (groups: mFDL and ODL). The adjusted covariates for the JOA score and its RR were age, sex, BMI, preoperative JOA score, follow-up duration, and OPLL type. The adjusted covariates for operative time and blood loss were age, sex, BMI, preoperative JOA score, and OPLL type
- OR odds ratio, CI confidence interval, JOA Japanese Orthopaedic Association, RR recovery rate
- *Grouped by the variables below. Outcome variables: grouped by postoperative JOA score (bounded by ≥ 14), grouped by operative time (bounded by ≥ 90 min), grouped by blood loss (bounded by ≥ 300 mL), grouped by JOA score recovery rate (bounded by ≥ 0.82)
