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Table 1 Patient characteristics

From: Dose-volume parameters predict radiation pneumonitis after induction chemoradiotherapy followed by surgery for non-small cell lung cancer: a retrospective analysis

 

%

Age (years)

 Median (range)

62 (34–79)

Sex

 Male

80

74

 Female

28

26

ECOG-PS

 0

64

59

 1

42

39

 2

1

1

Smoking History (Brinkmann Index)a

Median (range)

760 (0–3120)

Lobe

 Upper

72

67

 Middle

9

8

 Lower

27

25

Laterality

 Right

62

57

 Left

46

43

Histology

 Adenocarcinoma

50

46

 Squamous cell carcinoma

42

39

 Undifferentiated carcinoma

1

1

 Non-small cell carcinoma

15

14

C-stage

 IIA

4

4

 IIB

9

8

 IIIA

66

61

 IIIB

28

26

 IV

1

1

Operation

 Lobectomy

86

80

 Bilobectomy

14

13

 Pneumonectomy

8

7

FEV1 (l)a

Median (range)

2.52 (1.40–4.06)

Tumor size (mm)

Median (range)

44.33 (15.64–107.00)

GTV volume (cc)

Median (range)

66.25 (10.17–601.44)

Number of lymph nodes

Median (range)

2 (0–11)

Resected lung volume (cc)

Median (range)

734.54 (52.82–1759.25)

Residual lung volume (cc)

Median (range)

2503.98 (953.54–4415.03)

V5 (%)

Median (range)

32.0 (10.8–54.9)

V20 (%)

Median (range)

20.7 (7.0–38.5)

MLD (Gy)

Median (range)

10.3 (3.5–17.7)

Period from completion of RT to surgery (weeks)

Median (range)

5.9 (3.1–13.0)

  1. ECOG-PS Eastern Cooperative Oncology Group performance status, FEV1 Forced expiratory volume in 1 s, GTV Gross tumor volume, RT Radiotherapy.
  2. aThese factors have missing values