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Mean and standard deviation of quantitative variables
| Variable | Mean | Standard Deviation |
|---|---|---|
| Age | 64.23 | 7.21 |
| Follow Up(months) | 17.86 | 1.74 |
| Duration of symptoms(months) | 10.21 | 2.23 |
| Body Mass Index | 24.01 | 1.59 |
| Preoperative JOA scale | 12.21 | 1.42 |
| Final JOA scale | 15.18 | 1.54 |
| Preoperative Pavlov ratio | 0.71 | 0.022 |
| Final Pavlov ratio | 0.98 | 0.02 |
| Preoperative Curvature (°) | 13.93 | 1.24 |
| Final Curvature (°) | 11.02 | 1.41 |
| Preoperative Cervical spine ROM(°) | 34.31 | 5.18 |
| Final Cervical spine ROM(°) | 15.33 | 4.51 |
