Table 2.

Overall survival—time from stage IV diagnosis to the last follow-up (months)

Group	N	No. of deaths	Median survival (95% CI)	Survival (95% CI) 1 year	Survival (95% CI) 2 years	Survival (95% CI) 3 years
Brain metastases with SRS (Cohort A)	10	5	29.3 (19.1–NA)	0.90 (0.71–1.00)	0.58 (0.27–0.90)	0.39 (0.01–0.76)
No brain metastases (Cohort B)	21	10	33.1 (20.5–NA)	0.81 (0.64–0.98)	0.58 (0.35–0.81)	0.42 (0.17–0.67)
Total	31	15	29.3 (20.5–NA)	0.84 (0.71–0.97)	0.57 (0.39–0.76)	0.41 (0.20–0.62)

SRS, stereotactic radiosurgery.