Table 3.
Univariate analyses for overall survival
| Variable | Patients (n = 11) | HR | 95% CI | P-value | |
|---|---|---|---|---|---|
| Age, years | <64 | 3 | 1.504 | 0.167–13.540 | 0.716 |
| ≥64 | 8 | ||||
| Sex | F | 1 | - | - | - |
| M | 10 | ||||
| BMI, kg/m2 | <22.3 | 5 | 0.649 | 0.108–3.910 | 0.637 |
| ≥22.3 | 6 | ||||
| Alb, g/dL | ≥2.3 | 6 | - | - | - |
| <2.3 | 5 | ||||
| Hb, g/dL | ≥10.1 | 6 | 3.104 | 0.509–18.940 | 0.220 |
| <10.1 | 5 | ||||
| WBC, 103/μL | <17.0 | 5 | - | - | - |
| ≥17.0 | 6 | ||||
| CRP, mg/dL | <21.8 | 5 | 6.468 | 0.698–59.910 | 0.100 |
| ≥21.8 | 6 | ||||
| Predicted VC, % | ≥101.7 | 5 | 6.468 | 0.698–59.910 | 0.100 |
| <101.7 | 6 | ||||
| FEV1/FVC, % | ≥66.5 | 5 | 0.580 | 0.097–3.479 | 0.551 |
| <66.5 | 6 | ||||
| PS | <2 | 7 | 2.940 | 0.484–17.850 | 0.241 |
| ≥2 | 4 | ||||
| CCI | <3 | 9 | 0.729 | 0.080–6.608 | 0.779 |
| ≥3 | 2 | ||||
| Empyema | - | 7 | 2.682 | 0.439–16.400 | 0.286 |
| + | 4 | ||||
| Tumor size, mm | <55 | 4 | 4.395 | 0.475–40.620 | 0.192 |
| ≥55 | 7 | ||||
| Pathological stage | II | 6 | 2.498 | 0.407–15.330 | 0.323 |
| III-IV | 5 | ||||
| Histology | ADC | 5 | 2.333 | 0.374–14.540 | 0.364 |
| Other | 6 | ||||
| Surgical procedure | V | 1 | - | - | - |
| O | 10 | ||||
| Surgery | Lobectomy | 9 | 6.000 | 0.365–98.720 | 0.210 |
| Other | 2 | ||||
| CR | - | 7 | - | - | - |
| + | 4 | ||||
| OT, mins | <346 | 5 | 5.037 | 0.554–45.800 | 0.151 |
| ≥346 | 6 | ||||
| Bleeding, mL | <1327 | 5 | 5.037 | 0.554–45.800 | 0.151 |
| ≥1327 | 6 | ||||
Abbreviations: ADC adenocarcinoma, Alb albumin, BMI body mass index, CCI Charlson comorbidity index, CI confidence interval, CR combined resection, CRP C-reactive protein, F female, FEV 1 forced expiratory volume in 1 s, FVC forced vital capacity, Hb haemoglobin, HR hazard ratio, M male, O open thoracotomy, OT operative time, PS performance status, V video-assisted thoracoscopic surgery, VC vital capacity, WBC white blood cell
-, neither group met for the requirements for the proper statistical conditions