Table 1.
Pre- and peri-operative clinical features among the three groups.
| Group1 (n = 101) | Group2 (n = 87) | Group3 (n = 20) | p value (One-way ANOVA) | ||
|---|---|---|---|---|---|
| Age (years) a | 58.6 ± 7.5 | 59.5 ± 8.4 | 60.3 ± 9.7 | 0.602 | |
| Body weight (kg) a | 65.2 ± 9.9 | 64.5 ± 10.4 | 64.7 ± 6.3 | 0.89 | |
| Operative time (min) a | 212.7 ± 27.2 | 204.8 ± 20.0 | 213.3 ± 34.7 | 0.083 | |
| Blood loss (mL )a | 213.6 ± 21.9 | 206.7 ± 17.9 | 214.5 ± 26.7 | 0.055 | |
| Albumin (g L−1) a | 42.3 ± 4.7 | 40.6 ± 3.7 | 44.2 ± 3.4 | 0.001 | |
| Total protein (g L−1) a | 69.6 ± 5.4 | 68.0 ± 5.0 | 69.9 ± 4.9 | 0.086 | |
| Absolute value of lymphocyte (×109 L−1) a | 1.89 ± 0.51 | 1.85 ± 0.48 | 1.86 ± 0.32 | 0.808 | |
| p value (Chi square test) | |||||
| Sex | 0.509 | ||||
| Male | 90 | 77 | 16 | ||
| Female | 11 | 10 | 4 | ||
| Stage | 0.998 | ||||
| 0~ⅡB | 60 | 52 | 12 | ||
| Ⅲ | 41 | 35 | 8 | ||
| Pathological type | 0.125 | ||||
| Adenocarcinoma | 4 | 0 | 1 | ||
| squamous carcinoma | 97 | 87 | 19 | ||
| Group1 (n = 101) | Group2 (n = 87) | Group3 (n = 20) | p value (Chi square test) | ||
| Tumor location | 0.173 | ||||
| upper thoracic portion | 30 | 23 | 2 | ||
| mid-thoracic portion | 36 | 42 | 10 | ||
| lower thoracic portion | 35 | 22 | 8 | ||
a Data and mean ± standard deviation.