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Relationship between Karnofsky's performance status (KPS) score and survival estimate
| KPS score quartile | Median survival (in months) |
| 10–30 | 2.1 |
| 40–50 | 4.5 |
| 60 | 6.7 |
| 70–90 | 17.1 |
(Hazard ratio: 0.79; 95% Confidence Interval: 0.62–0.85, p value < 0.0001)
