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. 2019 Sep 5;14:302. doi: 10.1186/s13018-019-1341-4

Fig. 3.

Fig. 3

Survival curve between early and late surgery after operation. Early surgery, operation performed within 24 h; late surgery, operation performed from 25 h to 7 days. The propensity score adjusted Cox regression analysis found no significant difference between early and late operation for the in-hospital mortality of cervical spinal cord injury (p = 0.53)