Table 5.
Univariate and multivariate logistic regression analyses of Ki-67 expression level.
| Univariate analysis | Multivariate analysis | ||
|---|---|---|---|
| P value | P value | OR (95% CI) | |
| Sex (male versus female) | 0.062 | ||
| Patient age | 0.927 | ||
| Smoking status (non-smoker versus smoker) | 0.703 | ||
| Pathological grade (grade III versus grade I + II) | <0.001 | 0.031 | 5.291 (1.166–24.010) |
| Histological type (adenocarcinoma versus non-adenocarcinoma) | 0.153 | ||
| Tumour stage (stage III + IV versus stage I + II) | 0.811 | ||
| Tumour diameter | 0.016 | 0.086 | 1.066 (0.912–1.247) |
| EGFR gene status (EGFR wild-type versus EGFR mutation) | 0.010 | 0.069 | 0.332 (0.035–3.180) |
| 70 keV CT value in AP | 0.203 | ||
| 70 keV CT value in VP | 0.012 | 0.131 | 1.046 (0.944–1.158) |
| NIC in AP | 0.003 | 0.371 | 0.653 (0.407–1.047) |
| NIC in VP | <0.001 | 0.765 | 1.042 (0.882–1.232) |
| λHU in AP | 0.004 | 0.488 | 158.089 (0.677–36924.077) |
| λHU in VP | <0.001 | 0.001 | 0.020 (0.002–0.197) |
keV, kilo electron volt; NIC, normalized iodine concentration; λHU, the slope of the spectral curve. AP, arterial phase; VP, venous phase.