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Table 1 Preoperative patient data and operated levels in the two groups

From: Zero-profile implant (Zero-p) versus plate cage benezech implant (PCB) in the treatment of single-level cervical spondylotic myelopathy

Group Age (years) Sex (male/female) Operated level
Male Female C3-4 C4-5 C5-6 C6-7
Zero-p group 51.6 ± 11.3 12 15 2 8 9 8
PCB group 54.0 ± 8.5 12 18 3 7 12 8
Statistical value T = 0.924 χ2 = 0.115 χ2 = 0.540
P value 0.36 0.734 0.910
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