Table 2. Patient characteristics after propensity score matching.
| Time to CTx | ≤4 wk (n=174) | >4 wk (n=174) | P-value | |
|---|---|---|---|---|
| Age (yr) | 1.000 | |||
| <70 | 157 (90.2) | 156 (89.7) | ||
| ≥70 | 17 (9.8) | 18 (10.3) | ||
| Sex | 0.645 | |||
| Female | 53 (30.5) | 58 (33.3) | ||
| Male | 121 (69.5) | 116 (66.7) | ||
| Surgical approach | 0.556 | |||
| Laparoscopy | 126 (72.4) | 120 (69.0) | ||
| Open | 48 (27.6) | 54 (31.0) | ||
| Body mass index (kg/m2) | 24.1 (2.9) | 23.7 (2.9) | 0.263 | |
| ASA performance status | 0.370 | |||
| 1 | 99 (56.9) | 96 (55.2) | ||
| 2 | 64 (36.8) | 72 (41.4) | ||
| 3 | 11 (6.3) | 6 (3.4) | ||
| Type of operation | 1.000 | |||
| Distal gastrectomy | 122 (70.1) | 123 (70.7) | ||
| Total gastrectomy | 52 (29.9) | 51 (29.3) | ||
| Combined resection: yes | 25 (14.4) | 19 (10.9) | 0.420 | |
| Extent of lymphadenectomy | 1.000 | |||
| D1+ | 27 (15.5) | 28 (16.1) | ||
| D2 | 147 (84.5) | 146 (83.9) | ||
| Retrieved lymph node | 58 (46–72) | 57.5 (47–74) | 0.945 | |
| Hospital stays (day) | 6 (5–7) | 6 (5–7) | 0.586 | |
| Complications within 30 days (grade II or more): yes | 6 (3.4) | 5 (2.9) | 1.000 | |
| Histological type | 1.000 | |||
| Differentiated | 53 (30.5) | 52 (29.9) | ||
| Undifferentiated | 121 (69.5) | 122 (70.1) | ||
| Stage | 0.666 | |||
| II | 75 (43.1) | 80 (46.0) | ||
| III | 99 (56.9) | 94 (54.0) | ||
| CTx regimen | 0.209 | |||
| S-1 | 111 (63.8) | 123 (70.7) | ||
| XELOX | 63 (36.2) | 51 (29.3) | ||
Data shown are number (%), mean (SD), or median (IQR).
CTx = chemotherapy; ASA = American Society of Anesthesiologists; SD = standard deviation; IQR = interquartile range.