Table 6.

Prognostic score and survival rate at 6, 12, and 24 months after detection of bone metastasis

Prognostic score	Survival rate (95% confidence interval)
	6 months	12 months	24 months
0–3	0.981 (0.956–1.000)	0.914 (0.859–0.969)	0.778 (0.698–0.858)
4–6	0.740 (0.693–0.787)	0.493 (0.440–0.546)	0.276 (0.229–0.323)
7–10	0.269 (0.222–0.316)	0.060 (0.035–0.085)	0.021 (0.005–0.037)