Table 1: Clinical characteristics of patients.

Variables %

Sex (male/female)11/664/36
Age (mean ± SD, years)
Karnofsky index
 ≤804182
 >80918
Side (left/right)7/1041/59
Pathology
 Lung 530
 Breast 423
 Kidney 317
 Others 530

SD: standard deviation.