From: Radiosurgery and fractionated stereotactic body radiotherapy for patients with lung oligometastases
Covariate | Overall survival | Progression-free survival | ||||||
---|---|---|---|---|---|---|---|---|
Univariate analysis | Multivariate analysis | Univariate analysis | Multivariate analysis | |||||
HR (95% CI) | p-value | HR (95% CI) | p-value | HR (95% CI) | p-value | HR (95% CI) | p-value | |
Age (years) | ||||||||
>70 | 1 | 1 | ||||||
≤70 | 1.1 (0.4-2.7) | 0.81 | NA | NA | 0.8 (0.4-1.5) | 0.56 | NA | NA |
Gender | ||||||||
Female | 1 | 1 | ||||||
Male | 1.6 (0.6-4.6) | 0.31 | NA | NA | 1.2 (0.8-1.6) | 0.25 | NA | NA |
Primary tumor | ||||||||
non-CRC | 1 | 1 | ||||||
CRC | 0.6 (0.2-1.4) | 0.29 | NA | NA | 0.8 (0.5-1.6) | 0.64 | NA | NA |
KPS | ||||||||
≤70% | 1 | 1 | ||||||
>70% | 0.4 (0.2-1.1) | 0.09 | 0.3 (0.1-0.8) | 0.03 | 0.5 (0.3-0.9) | 0.03 | 0.4 (0.2-0.7) | 0.02 |
T-classification | ||||||||
T≤2 | 1 | 1 | ||||||
T>2 | 2.4 (0.8-6.8) | 0.08 | 1.5 (0.4-5.0) | 0.48 | 1.4 (0.7-2.8) | 0.31 | NA | NA |
N-classification | ||||||||
N0 | 1 | 1 | ||||||
N+ | 2.6 (0.9-7.3) | 0.06 | 4.4 (1.2-15.6) | 0.02 | 1.4 (0.7-2.7) | 0.33 | NA | NA |
Time to first metastasis (months) | ||||||||
<12 | 1 | 1 | ||||||
≥12 | 0.3 (0.1-0.9) | 0.03 | 0.2 (0.1-0.7) | 0.01 | 0.6 (0.3-1.2) | 0.14 | NA | NA |
No. of metastases before SBRT | ||||||||
<3 | 1 | 1 | ||||||
≥3 | 1.4 (0.6-3.3) | 0.42 | NA | NA | 2.6 (1.3-5.1) | 0.005 | 2.7 (1.4-5.4) | 0.003 |
No. of affected organs | ||||||||
1 | 1 | 1 | ||||||
>1 | 1.6 (0.7-3.9) | 0.24 | NA | NA | 1.1 (0.5-1.9) | 0.97 | NA | NA |
Systemic therapy before SBRT | ||||||||
Yes | 1 | 1 | ||||||
No | 1.4 (0.3-6.3) | 0.65 | NA | NA | 1.4 (0.5-4.1) | 0.48 | NA | NA |