Table 1 Baseline clinical and dosimetric characteristics (categorical variables)
Variable | Category | Number (%) |
|---|---|---|
Sex | Male | 108 (71%) |
Female | 44 (29%) | |
Smoking history | Never smoker | 33 (22%) |
Ex-smoker | 99 (65%) | |
Current smoker | 20 (13%) | |
Performance status | PS < 2 | 132 (87%) |
PS ≥ 2 | 20 (13%) | |
History of COPD | No | 67 (44%) |
Yes | 85 (56%) | |
Confirmed diagnosis | Radiological confirmation | 79 (52%) |
Histological proof | 73 (48%) | |
Type of tumor | Primary tumor | 127 (83%) |
Lung metastases | 25 (16%) | |
History of lung surgery (lobectomy or pneumonectomy) | No | 119 (78%) |
Yes | 33 (22%) | |
History of CVD | No | 96 (63%) |
Yes | 56 (37%) | |
Diabetes | No | 128 (84%) |
Yes | 24 (16%) | |
Lung | Right | 84 (55%) |
Left | 68 (45%) | |
Tumor location | Lower lobe | 70 (46%) |
Other lobe | 82 (54%) | |
Tumor stage (8th edition) | T1a | 26 (17%) |
T1b | 84 (55%) | |
T1c | 24 (16%) | |
T2a | 9 (6%) | |
T2b | 7 (5%) | |
T3 | 2 (1%) | |
Dose fractionation | 5 × 10 Gy | 100 (66%) |
3 × 18 Gy | 35 (23%) | |
5 × 9 Gy | 5 (3%) | |
3 × 16 Gy | 3 (2%) | |
10 × 5 Gy | 6 (4%) | |
8 × 7.5 Gy | 1 (1%) | |
3 × 12.5 Gy | 1 (1%) | |
Abdominal compression | No | 116 (76%) |
Yes | 36 (24%) |