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. 2010 Mar 21;10:10. doi: 10.1186/1471-2482-10-10

Table 1.

Patient characteristics.

ACDF Study group
N = 258
Total group
N = 390
p-value
Females - no of patients (%) 114 (44) 178 (46) 0.72prop
Median age (range) - (years) 47.5 (28.3-82.8) 47.7 (26.9- 82.8) 0.73

Levels per procedure - no of patients (%)
 One level 152 (59) 240 (61) 0.50
 Two levels 104 (40) 148 (38) 0.55
 Three levels 2 (1) 2 (1) 0.68 0.75χ2

Level - no of patients (%)
 C3/C4 7 (3) 7 (2) 0.43
 C4/C5 38 (15) 56 (14) 0.90
 C5/C6 182 (71) 266 (68) 0.53
 C6/C7 137 (53) 207 (53) 0.99
 C7/Th1 2 (1) 6 (2) 0.39 0.85χ2

Method of fusion - no of patients (%)
 Autologous bone graft 181 (70) 278 (71) 0.76
 PEEK* cage 77 (30) 112 (29) 0.76 0.76χ2

Symptoms - no of patients (%)
 Radiculopathy 206 (80) 309 (79) 0.85
 Radiculopathy and myelopathy 36 (14) 50 (13) 0.86
 Myelopathy 9 (3) 18 (5) 0.48
 No radiculopathy or myelopathy 7 (3) 13 (3) 0.66

Previous ACDF - no of patients (%) 11 (4) 18 (5) 0.83

Previous neck trauma - no of patients (%) 23 (9) 26 (7) 0.29

*Polyetheretherketone