Table 1 Patient characteristics (n = 176)
All cases (n = 176) | Group A: one tumor (n = 78) | Group B: two to four tumors (n = 67) | Group C: five to ten tumors (n = 31) | p value | |
|---|---|---|---|---|---|
Age (years) | 0.156 | ||||
Median | 69.5 | 69.6 | 71.3 | 68.5 | |
(range) | (19–90) | (23–88) | (19–90) | (21–82) | |
< 65 | 49 (27.8%) | 25 (32.1%) | 13 (19.4%) | 11 (35.5%) | |
≥ 65 | 127 (72.2%) | 53 (67.9%) | 54 (80.6%) | 20 (64.5%) | |
Gender | 0.73 | ||||
Male | 97(55%) | 43(55%) | 35(52%) | 19(61%) | |
Female | 79(45%) | 35(45%) | 32(48%) | 12(39%) | |
Primary sites | 0.952 | ||||
Lung | 111(63%) | 48(61.5%) | 45(67%) | 18(58%) | |
GI | 20(11%) | 9(11.5%) | 6(9%) | 5(16%) | |
Breast | 8(5%) | 4(5%) | 3(4%) | 1(3%) | |
Others | 37(21%) | 17(22%) | 13(20%) | 7(23%) | |
KPS | 0.604 | ||||
≥ 80 | 96(55%) | 46(59%) | 34(51%) | 16(52%) | |
≤ 70 | 80(45%) | 32(41%) | 33(49%) | 15(48%) | |
RPA | 0.24 | ||||
1 | 11(6%) | 6(8%) | 2(3%) | 3(10%) | |
2 | 119(68%) | 56(72%) | 46(69%) | 17(55%) | |
3 | 46(26%) | 16(20%) | 19(28%) | 11(35%) | |
Extracranial | 0.124 | ||||
Lesions | |||||
Controlled | 50(28%) | 27(35%) | 18(27%) | 5(16%) | |
Uncontrolled | 126(72%) | 51(65%) | 49(73%) | 26(84%) | |
fSRT or SRS | 0.846 | ||||
SRS | 97(55%) | 44(56%) | 35(52%) | 18(58%) | |
fSRT | 79(45%) | 34(44%) | 32(48%) | 13(42%) | |
Systemic | 0.55 | ||||
Therapy | |||||
Yes | 44(56%) | 42(63%) | 16(52%) | 102(58%) | |
No | 34(44%) | 25(37%) | 15(48%) | 74(42%) | |
Total PTV | 0.022 | ||||
volume (cm3) | |||||
1 (≥ 15) | 42(24%) | 11(14%) | 19(28%) | 12(39%) | |
2 (≥ 4, < 15) | 68(39%) | 33(42%) | 22(33%) | 13(42%) | |
3 (< 4) | 66(37%) | 34(44%) | 26(39%) | 6(19%) | |