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Table 1 Patients and tumor characteristics

From: Impact of tumor attachment to the pleura measured by a pretreatment CT image on outcome of stage I NSCLC treated with stereotactic body radiotherapy

Characteristic No. (%)
Age, median, years 78 (range: 48-92)
Gender  
 Female 19 (21)
 Male 68 (78)
ECOG performance status  
 0-1 71 (81)
 2 12 (13)
 3 4 (4)
Tumor diameter, median, cm 2.2 (range: 0.9-4.2)
 ≤ 2.0 38 (42)
 2.1-3.0 40 (44)
 3.1-5.0 12 (13)
Pathology  
 Adenocarcinoma 32 (35)
 Squamous cell carcinoma 20 (22)
 Others 8 (8)
 Clinically diagnosed 30 (33)
SBRT dose, BED10  
 ≤ 102 Gy10 44 (48)
 > 102 Gy10 46 (51)
Prescription  
 Isocenter 59 (65)
 D95 31 (34)
  1. Data are shown as number (percentage) of patients for parameters from age to performance status and as number (percentage) of tumors for other parameters.
  2. Abbreviations: ECOG, Eastern cooperative oncology group; BED10, biological effective dose, calculated by the formula BED = nd [1 + d/(α/β)], where n is the number of fractions, d is the dose/fraction, and α/β ratio is 10 Gy for tumors; D95, doses covering 95% of the planning target volume.