Spinal bone metastases in colorectal cancer: a retrospective analysis of stability, prognostic factors and survival after palliative radiotherapy

Table 1 Patients’ characteristics

		n	%
Age (years)
Median (range)	66 (43–88)
Gender
Female		35	37.2
Male		59	62.8
Karnofsky PS
< 70%		54	57.4
≥ 70%		40	42.6
Number of bone metastases
Mean (range)	1.7 (1–5)
Solitary		54	57.4
Multiple		40	42.6
Spine involvement
Thoracic		56	60
Lumbar		38	40
Primary site
Cecum		4	4.3
Ascending, transverse and descending colon		27	28.7
Sigma		18	19.1
Rectum		45	47.9
Distant extraskeletal metastases
Brain		13	13.8
Lung		61	64.9
Liver		72	76.6
Lymphatic		35	37.2
Others		22	23.4

ISSN: 1748-717X