Classification and Treatment for Cervical Spine Fracture with Ankylosing Spondylitis: A Clinical Nomogram Prediction Study

Table 4

COX and OS.

Variable	Unadjusted HR (95% CI)	value	Adjusted HR (95% CI)	value
Sex (female vs. male)	0.04 (0–130.87)	0.44
Age (≥60 vs. <60)	13.09 (3.53–48.49)	0	2.93 (0.6–14.32)	0.185
BMI (≥25 vs. <25)	0.46 (0.14–1.53)	0.205
Smoking (yes vs. no)	1.2 (0.38–3.78)	0.756
COBB score (≥10° vs. <10°)	0.38 (0.12–1.21)	0.101
cSVA (every 1 increment)	1.01 (0.81–1.26)	0.931
T1 slope (every 1 increment)	0.95 (0.85–1.07)	0.381
Fracture site (single vs. multiple)	0.2 (0.03–1.55)	0.124
Fracture type		0.01		0.59
I	Reference		Reference
II	0.95 (0.06–15.17)	0.971	0.55 (0.03–11.43)	0.701
III	10.33 (1.32–80.74)	0.026	1.65 (0.14–19.59)	0.69
Subtype		0.001		0.085
A	Reference		Reference
B	3.16 (0.33–30.33)	0.32	3.01 (0.3–29.73)	0.346
C	21.47 (2.68–171.94)	0.004	9.24 (1.04–82.06)	0.046
ASIA (A, B, and C vs. D and E)	11.46 (1.48–88.85)	0.02	1.46 (0.11–18.56)	0.773
mJOA (every 1 increment)	0.63 (0.47–0.83)	0.001	0.77 (0.53–1.11)	0.155
Treatment		0.741
AF	Reference
PF	172324.78 (0–2.994E + 144)	0.941
PF + AF	—	—
Conservative treatment	386706.5 (0–6.727E + 144)	0.937