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Table 1 The patient characteristics

From: The clinical results of proton beam therapy in patients with idiopathic pulmonary fibrosis: a single center experience

Characteristics Patients
Age (years)
 Median (range) 76 (63–89)
Gender
 Male 14 (87 %)
 Female 2 (13 %)
Performance status
 0 9 (56 %)
 1 5 (31 %)
 2 2 (13 %)
Follow-up time (months)
 Median (range) 14 (5–39)
T categorya (n = 15)
 T1 7 (47 %)
 T2 6 (40 %)
 T3 2 (13 %)
Stagea (n = 15)
 I 12 (80 %)
 II 3 (20 %)
Histopathology
 Squamous cell carcinoma 7 (44 %)
 Adenocarcinoma 2 (13 %)
 Small cell carcinoma 1 (6 %)
 Clinical malignancy 5 (31 %)
 Metastasis (lung cancer) 1 (6 %)
Diameter of lung tumor (mm)
 Median (range) 24 (15–60)
Total dose (Gy (RBE))
 Median (range) 80 (66.0–86.4)
  1. Abbreviations: RBE relative biological dose effectiveness, PBT proton beam therapy
  2. aNumbers correspond to the tumor-node-metastasis system of classification (International Union Against Cancer criteria)