Table 1.
Baseline demograpic and clinical characteristics of patients of the entire cohort.
| Variable | Caese (N = 437) | Surgical approaches (%) | P-value | |
|---|---|---|---|---|
| Right (N = 202) | Left (N = 235) | |||
| Mean Age, median (range) | 437 (100%) | 63.5 (43–77) | 65 (41–81) | 0.136 |
| Age N (%) | 0.400 | |||
| ≥64 | 228 (52.17%) | 101 (50.00) | 127 (54.04) | |
| <64 | 209 (47.83%) | 101 (50.00) | 108 (45.96) | |
| Mean BMI, mean (SD) | 437 (100%) | 23.23 (3.03) | 23.65 (3.02) | 0.204 |
| Sex N (%) | 0.323 | |||
| Female | 138 (31.58) | 59 (29.21) | 79 (33.62) | |
| Male | 299 (68.42) | 143 (70.79) | 156 (66.38) | |
| Smoking N (%) (3 missing data) | 0.597 | |||
| Never | 224 (51.61) | 101 (50.25) | 123 (52.79) | |
| Ever/current | 210 (48.39) | 100 (49.75) | 110 (47.21) | |
| Drinking N (%) (5 missing data) | 0.942 | |||
| Never | 243 (56.25) | 111 (56.06) | 132 (56.41) | |
| Ever/current | 189 (43.75) | 87 (43.94) | 102 (43.59) | |
| Medical insurance N (%) (2 missing data) | 0.464 | |||
| Rural cooperative medical care system | 265 (61.43) | 127 (63.18) | 138 (59.74) | |
| Others (city residents and works, self-paying, | 167 (38.66) | 74 (36.82) | 93 (40.26) | |
| social insurance, free healthcare, others) | ||||
| cT stage N (%) | 0.601 | |||
| T1b-2 | 134 (30.66) | 58 (28.71) | 76 (32.34) | |
| T3 | 268 (61.33) | 129 (63.86) | 139 (59.15) | |
| T4 | 35 (8.01) | 15 (7.43) | 20 (8.51) | |
| cN stage N (%) | 0.828 | |||
| N0 | 321 (73.46) | 147 (72.77) | 174 (74.04) | |
| N+ | 116 (26.54) | 55 (27.23) | 61 (25.96) | |
| Neoadjuvant treatment N (%) | 0.519 | |||
| Yes | 72 (16.48) | 36 (17.82) | 36 (15.32) | |
| No | 365 (83.52) | 166 (82.18) | 199 (84.68) | |
| Adjuvant treatment N (%) | 0.338 | |||
| Yes | 219 (50.11) | 96 (47.29) | 123 (52.34) | |
| No | 218 (49.98) | 106 (52.22) | 112 (47.66) | |
MIE, minimally invasive esophagectomy; OE, open esophagectomy; N, number; SD, standard deviation; cT, clinical tumor; cN, clinical lymph nodes.