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Table 1 Characteristics of both patient collectives – conditioning phase and study phase

From: Sniffer dogs can identify lung cancer patients from breath and urine samples

 

Conditioning Phase (n = 186)

Study Phase (n = 246)

Collective

Cancer

Control

Cancer

Control

Total number of patients (n)

36

150

41

205

Gender (female/male)

17 / 19

74 / 76

12 / 29

85 / 120

47.2% / 52.7%

49.3% / 50.6%

29.3% / 70.7%

41.5% / 58.5%

Age in years (mean)

66.72

62.91

65,63

61.71

Smoker / Non-smoker

17 / 19

38 / 112

22 / 19

59 / 146

47.2% / 52.7%

25.3% / 74.7%

53.7% / 46.3%

28.8% / 71.2%

Renal infection (yes / no)

1 / 35

7 / 143

1 / 40

4 / 201

2.8% / 97.2%

4.7% / 95.3%

2.4% / 97.6%

2.0% / 98.0%

Regular use of alcohol (yes / no)

6 / 30

15 / 135

6 / 35

28 / 177

16.7% / 83.3%

10.0% / 90.0%

14.6% / 85.4%

13.7% / 86.3%

Tumor entities

SCLC

8 22.2%

 

10 24.4%

 

Squamous epithelial cell cancer

11   30.6%

12 29.3%

Adenocarcinoma

17 47.2%

18 43.9%

Large-cell lung cancer

0

1 2.4%

UICC-Stage

Stage I

3 8.3%

 

2 4.9%

 
 

Stage II

6 16.7%

6 14.6%

 

Stage III

13 36.1%

11 26.8%

 

Stage IV

14 38.9%

22 53.7%