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Table 5 Partial correlation coefficient

From: Analysis of sagittal alignment parameters following anterior cervical hybrid decompression and fusion of multilevel cervical Spondylotic myelopathy

Item Item No adjust Adjust-age/T1 s
r P△value r P▲value
Preoperative NDI Preoperative T1 s 0.489 0.001** 0.361 0.020*
Follow-up NDI Follow-up T1 s 0.421 0.006** 0.515 0.001**
Preoperative NDI Age 0.440 0.004** 0.316 0.044*
Follow-up NDI Age 0.332 0.032* 0.176 0.270
Preoperative T1 s Age 0.343 0.026*   
Follow-up T1 s Age 0.340 0.027*   
  1. P△value spearman correlation between two items, P▲value partial correlation between two items, T1 s T1 slope
  2. *Correlation is significant at the P < 0.05 level (2-tailed);
  3. **Correlation is significant at the P < 0.01 level (2-tailed)
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