Table 4.

Comparison of complications between thoracic tumor versus lumbar tumor groups

	Thoracic group (n = 73)	Lumbar group (n = 27)	P value
Events per patient, mean (SD)	1.41 (1.28)	1.67 (1.32)	0.404
Surgical duration (min), mean (SD)	485 (174)	600 (235)	0.019*
Estimated blood loss (ml), mean (SD)	1859 (1335)	2409 (1375)	0.035*
Large vascular injury, n (%)	1 (1.4)	6 (22.2)	0.001*
Neurological deterioration, n (%)	10(13.7)	11(40.7)	0.003*
Chest complications, n(%)	27 (37.0)	2 (7.4)	0.004*
Respiratory complications, n(%)	12 (16.4)	2 (7.4)	0.406
Cerebrospinal fluid leakage, n(%)	6 (8.2)	10 (37.0)	0.001*
Internal fixation failure, n (%)	2 (2.7)	1 (3.7)	> 0.999

Comparison was conducted utilizing unpaired student t test, Mann–Whitney U test, Chi-squared test or Fisher’s exact test accordingly

^*Significantly different at P < 0.05