Table 3.

Six-months survival rates of the independent prognostic factors and the corresponding scoring points

	Survival at 6 months (%)	Scoring points
Visceral metastases at the time of RT
No (N = 117)	88	9
Yes (N = 101)	48	5
Time developing motor deficits prior to RT
1–7 days (N = 48)	33	3
8–14 days (N = 70)	73	7
> 14 days (N = 110)	83	8
Ambulatory status prior to RT
Not ambulatory (N = 66)	41	4
Ambulatory (N = 152)	82	8
Involved vertebrae (N)
1–3 (N = 127)	79	8
≥ 4 (N = 91)	56	6
ECOG Performance status
1–2 (N = 120)	87	9
3 (N = 86)	55	6
4 (N = 12)	0	0