Table 1. Clinical–pathological characteristics of patients in various molecular studies.
| Gene copy by qPCR (n=81) (%) | Gene copy by FISH (n=59) (%) | mRNA expression (n=130) (%) | P- value | |
|---|---|---|---|---|
| Age | ||||
| Mean | 69.0 | 69.9 | 68.8 | 0.73 |
| Range | (43.7–85.4) | (43.7–85.4) | (43.7–85.4) | |
| Gender | ||||
| Male | 50 (61) | 35 (59) | 74 (57) | 0.79 |
| Female | 31 (39) | 24 (41) | 56 (43) | |
| Smoking history | ||||
| Smoker | 59 (73) | 41 (69) | 92 (71) | 0.99 |
| Nonsmoker | 19 (23) | 16 (27) | 33 (25) | |
| Unknown | 3 (4) | 2 (4) | 5 (4) | |
| Pathological stage | ||||
| Stage I | 52(64) | 42 (71) | 91 (70) | 0.90 |
| Stage II | 21 (26) | 12 (20) | 28 (22) | |
| Stage III | 8 (10) | 5 (8) | 11 (8) | |
| T stage | ||||
| T1 | 24 (30) | 20 (34) | 47 (36) | 0.62 |
| T2 | 54 (66) | 37 (63) | 82 (63) | |
| T3 | 3 (4) | 2 (3) | 1 (1) | |
| N stage | ||||
| N0 | 53 (65) | 43 (73) | 90 (69) | 0.92 |
| N1 | 20 (25) | 11 (19) | 28 (22) | |
| N2 | 8 (10) | 5 (8) | 12 (9) | |
| Histology | ||||
| ADC | 40 (49) | 32 (54) | 83 (64) | 0.03 |
| SQCC | 37 (46) | 26 (44) | 38 (29) | |
| Other | 4 (5) | 1 (2) | 9 (7) | |
| Differentiation grade | ||||
| WD | 20 (25) | 16 (27) | 33 (25) | 0.98 |
| MD | 30 (37) | 19 (32) | 44 (34) | |
| PD | 31 (38) | 24 (41) | 53 (41) | |
The P-values were calculated using the χ2 test.
ADC=adenocarcinoma; SQCC=squamous cell carcinoma; WD=well differentiated; MD=moderately differentiated; PD=poorly differentiated; qPCR=quantitative polymerase chain reaction; FISH=fluorescence in situ hybridisation.