TABLE IV.

Long-term (2-year) conditional survival (LCS) probabilities by selected histologies

Histology	Pts (n)	Conditional survival probability (95% CL)
		LCS[0]	LCS[1]	LCS[2]	LCS[3]	LCS[4]
Glioblastoma multiforme	8365	0.10 (0.09, 0.11)	0.20 (0.18, 0.22)	0.42 (0.38, 0.46)	0.58 (0.53, 0.64)	0.67 (0.60, 0.74)
Anaplastic astrocytoma	610	0.34 (0.30, 0.38)	0.54 (0.47, 0.60)	0.66 (0.57, 0.73)	0.63 (0.53, 0.72)	0.62 (0.49, 0.72)
Diffuse astrocytoma	2310	0.31 (0.29, 0.33)	0.56 (0.53, 0.59)	0.71 (0.67, 0.75)	0.76 (0.71, 0.80)	0.79 (0.73, 0.83)
Anaplastic oligodendroglioma	555	0.56 (0.52, 0.60)	0.65 (0.60, 0.70)	0.76 (0.69, 0.81)	0.76 (0.68, 0.82)	0.77 (0.69, 0.84)
Oligoastrocytoma	720	0.60 (0.57, 0.64)	0.71 (0.67, 0.75)	0.81 (0.75, 0.84)	0.76 (0.70, 0.82)	0.73 (0.65, 0.80)
Oligodendroglioma	955	0.82 (0.79, 0.84)	0.88 (0.85, 0.90)	0.89 (0.86, 0.92)	0.85 (0.81, 0.88)	0.83 (0.79, 0.87)

CL = confidence limits.