Table 1.
Clinical findings
| Finding | Observation group (n=58) | Control group (n=58) | t/χ2 | P |
|---|---|---|---|---|
| Gender (male/female) | 39/19 | 37/21 | 0.153 | 0.696 |
| Age (year) | 67.4±2.5 | 68.1±2.7 | 0.863 | 0.383 |
| BMI (kg/m2) | 20.10±1.14 | 20.18±1.05 | 0.217 | 0.705 |
| Underlying disease (n, %) | ||||
| Hypertension | 9 (15.52) | 8 (13.79) | 0.069 | 0.794 |
| Diabetes | 7 (12.07) | 6 (10.34) | 0.087 | 0.769 |
| CHD | 5 (8.62) | 6 (10.34) | 0.100 | 0.751 |
| Tumor histology (n, %) | ||||
| Adenocarcinoma | 36 (62.07) | 34 (58.62) | 0.144 | 0.704 |
| SCC | 22 (37.93) | 24 (41.38) | 0.144 | 0.704 |
| Predicted value of FEV1 (%) | 59.71±4.82 | 60.34±5.11 | 0.652 | 0.516 |
| Predicted value of FVC (%) | 83.57±8.39 | 82.75±7.90 | 0.531 | 0.596 |
| Operation time (min) | 135±26.41 | 138±24.37 | 0.637 | 0.526 |
| OLV time (min) | 101±21.66 | 103±25.80 | 0.430 | 0.668 |
| Fluid intake (mL) | 790.16±80.47 | 798.44±78.62 | 1.163 | 0.247 |
| Urine volume (mL) | 263.74±105.63 | 270.83±110.44 | 0.852 | 0.396 |
| Blood loss (mL) | 112.52±45.32 | 116.46±50.21 | 0.394 | 0.694 |
Note: BMI: body mass index; CHD: coronary heart disease; SCC: squamous cell carcinoma; FEV1: forced expiratory volume in the first second; FVC: forced vital capacity; OLV: one-lung ventilation.