Table 5. Relationship of patient and clinical variables to the presence of a major complication.

Variable	95% CI	p Value
EBL	1544.34–2,995.66	0.7328b
Age	52.52–66.28	0.3801b
Operative time	378.31–559.29	0.3827b
Follow-up	224.07–620.37	0.1156b
No. levels fused	1.1–3.9	0.0860b
No. comorbidities	1–2.2	0.9035b
Previous surgeries	−1.58–11.58	0.7669b
ICU stay	0.62–1.19	0.0438b
Pre C7 plumb line	29.29–287.91	0.2025a
Pre lumbar lordosis	−35.08–2.79	0.8885a
Coronal curve	−2.66 to −0.61	0.5540b

^a t test.

^bWilcoxon rank sum.

Abbreviations: EBL, estimated blood loss; ICU, intensive care unit; Pre, preoperative.