Table 1 Patient characteristics of LSRII validation samples
From: Detection of early-stage lung cancer in sputum using automated flow cytometry and machine learning
Characteristic |  | Non-cancer, n = 122 | Cancer, n = 28 |
|---|---|---|---|
Patient demographics | Â | Â | Â |
 Age—years | median (range) | 65 (53-75) | 73 (54–79) |
 Male | n (%) | 57 (46.7) | 21 (75.0) |
 Female | n (%) | 65 (53.3) | 7 (25.0) |
Race | Â | Â | |
 White | n (%) | 110 (90.2) | 25 (89.3) |
 Non-white | n (%) | 12 (9.8) | 3 (10.7) |
Ethnicity | Â | Â | |
 Hispanic | n (%) | 15 (12.3) | 8 (28.6) |
 Non-Hispanic | n (%) | 104 (85.2) | 18 (64.3) |
 Not available | n (%) | 3 (2.5) | 2 (7.1) |
Smoking Status | Â | Â | |
 Never | n (%) | 0 (0) | 1 (3.6) |
 Former | n (%) | 69 (56.6) | 15 (53.6) |
  Pack years | mean (SD) | 56.1 (24.3) | 53.3 (36.3) |
 Current | n (%) | 53 (43.4) | 12 (42.9) |
  Pack years | mean (SD) | 55.2 (26.5) | 51.8 (14.1) |
Comorbidities | Â | Â | |
 COPD | n (%) | 81 (66.4) | 13 (46.4) |
 Emphysema | n (%) | 23 (18.9) | 6 (21.4) |
 Asthma | n (%) | 16 (13.1) | 4 (14.3) |
 Bronchitis | n (%) | 7 (5.7) | 3 (10.7) |
 Cancer | n (%) | 17 (13.9) | 3 (10.7) |