Table 5. Potential Prognostic Factors for Sustained Pain Relief (Kaplan-Meier Analysis).

Variable	p-Value
Age ≥ 70	0.6042
Gender	0.9748
Initial KPS ≥ 80%	0.7681
Initial VAS ≥ 7	0.2616
Dmax > 75 Gy	0.4548