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% | |||