Table 1.
Distribution of characteristics in patients with poor survival prognoses
| 8 Gy × 1 N patients (%) |
4 Gy × 5 N patients (%) |
|
|---|---|---|
| Age | ||
| ≤65 years (N = 78) | 39 (50) | 39 (50) |
| ≥66 years (N = 78) | 39 (50) | 39 (50) |
| Gender | ||
| Female (N = 36) | 18 (23) | 18 (23) |
| Male (N = 120) | 60 (77) | 60 (77) |
| ECOG Performance status | ||
| 1–2 (N = 26) | 13 (17) | 13 (17) |
| 3–4 (N = 130) | 65 (83) | 65 (83) |
| Type of primary tumor | ||
| Breast cancer (N = 12) | 6 (8) | 6 (8) |
| Prostate cancer (N = 36) | 18 (23) | 18 (23) |
| Myeloma/lymphoma (N = 0) | 0 (0) | 0 (0) |
| Lung cancer (N = 46) | 23 (29) | 23 (29) |
| Unknown primary (N = 32) | 16 (21) | 16 (21) |
| Other tumors (N = 30) | 15 (19) | 15 (19) |
| Involved vertebrae (n) | ||
| 1–2 (N = 34) | 17 (22) | 17 (22) |
| ≥3 (N = 122) | 61 (78) | 61 (78) |
| Other bone metastases | ||
| No (N = 34) | 17 (22) | 17 (22) |
| Yes (N = 122) | 61 (78) | 61 (78) |
| Visceral metastases | ||
| No (N = 36) | 18 (23) | 18 (23) |
| Yes (N = 120) | 60 (77) | 60 (77) |
| Interval from tumor diagnosis to MESCC | ||
| ≤ 15 months (N = 136) | 68 (87) | 68 (87) |
| > 15 months (N = 20) | 10 (13) | 10 (13) |
| Pre-RT ambulatory status | ||
| Not ambulatory (N = 110) | 55 (71) | 55 (71) |
| Ambulatory (N = 46) | 23 (29) | 23 (29) |
| Time developing motor deficits | ||
| 1–7 days (N = 110) | 55 (71) | 55 (71) |
| 8–14 days (N = 30) | 15 (19) | 15 (19) |
| > 14 days (N = 16) | 8 (10) | 8 (10) |