TABLE 6.
Relationship between abnormal signal of spinal cord and exposure time
| Exposure time | Abnormal | Normal | Total | Abnormal rate |
|---|---|---|---|---|
| ≤6 m | 16 | 3 | 19 | 84.2% |
| >6 m | 6 | 11 | 17 | 35.3% |
| p‐Value | <.05 |
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