Table 1 Patient characteristics.
Variables | Reduced robotic (n = 100) | Conventional laparoscopic (n = 261) | p value | Conventional robotic (n = 241) | p value |
|---|---|---|---|---|---|
Age (years) | 54.5 ± 11.4 | 62.0 ± 11.5 | < 0.001 | 57.2 ± 12.1 | 0.059 |
Sex | 0.733 | 0.505 | |||
Male | 59 (59.0) | 147 (56.3) | 131 (54.4) | ||
Female | 41 (41.0) | 114 (43.7) | 100 (45.6) | ||
ASA score | 0.001 | 0.383 | |||
1 | 24 (24.0) | 39 (14.9) | 63 (26.1) | ||
2 | 62 (62.0) | 129 (49.4) | 129 (53.5) | ||
3 | 14 (14.0) | 86 (33.0) | 47 (19.5) | ||
4 | 0 (0) | 7 (2.7) | 2 (0.8) | ||
BMI, kg/m2 | 23.8 (2.7) | 23.5 (3.1) | 0.544 | 23.6 (2.9) | 0.689 |
Clinical T classificationa | 0.216 | 0.852 | |||
cT1 | 74 (74.0) | 212 (81.2) | 185 (76.8) | ||
cT2 | 21 (21.0) | 41 (15.7) | 48 (19.9) | ||
cT3 | 4 (4.0) | 8 (3.1) | 7 (2.9) | ||
cT4 | 1 (1.0) | 0 (0.0) | 1 (0.4) | ||
Clinical N classificationa | 0.422 | > 0.99 | |||
N0 | 89 (89.0) | 241 (92.3) | 214 (88.8) | ||
N1 | 11 (11.0) | 20 (7.7) | 27 (11.2) | ||
Tubular tumor location | 0.378 | 0.18 | |||
Middle third | 67 (67.0) | 160 (61.3) | 141 (58.5) | ||
Lower third | 33 (33.0) | 101 (38.7) | 100 (41.5) | ||
Circular tumor location | 0.919 | 0.794 | |||
Lesser curvature | 33 (33.0) | 94 (36.0) | 88 (36.5) | ||
Greater curvature | 19 (19.0) | 56 (21.5) | 49 (20.3) | ||
Anterior wall | 21 (21.0) | 47 (18.0) | 37 (15.4) | ||
Posterior wall | 26 (26.0) | 62 (23.8) | 65 (27.0) | ||
Circular | 1 (1.0) | 2 (0.8) | 2 (0.8) |
