Characteristics | Before matching | After matching | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
ANTI (n = 220) | ISO (n = 392) | P | ANTI (n = 183) | ISO (n = 183) | P | |||||
n | % | n | % | n | % | n | % | |||
Sex | ||||||||||
Male | 139 | 63.2 | 243 | 62.0 | 0.77 | 116 | 63.4 | 114 | 62.3 | 0.829 |
Female | 81 | 36.8 | 149 | 38.0 | 67 | 36.6 | 69 | 37.7 | ||
Age (mean ± SD, year) | 63.3 | ± 8.6 | 65.6 | ± 8.4 | 64.3 | ± 8.7 | 64.9 | ± 8.5 | 0.563 | |
BMI (mean ± SD, kg/m2) | 24.9 | ± 4.4 | 25.2 | ± 4.3 | 24.5 | ± 4.3 | 24.8 | ± 4.5 | 0.623 | |
Year of surgery | ||||||||||
2016 | 43 | 19.6 | 118 | 30.1 | 0.011 | 28 | 15.3 | 34 | 18.6 | 0.326 |
2017 | 92 | 41.8 | 155 | 39.5 | 67 | 36.6 | 75 | 41.0 | ||
2018 | 85 | 38.6 | 119 | 30.4 | 88 | 48.1 | 74 | 40.4 | ||
ASA score | ||||||||||
I | 70 | 31.8 | 90 | 23.0 | 0.045 | 49 | 26.8 | 50 | 27.3 | 0.992 |
II | 109 | 49.5 | 210 | 53.6 | 98 | 53.6 | 97 | 53.0 | ||
III | 41 | 18.6 | 92 | 23.5 | 36 | 19.7 | 36 | 19.7 | ||
Area | ||||||||||
Urban | 95 | 43.2 | 206 | 52.6 | 0.026 | 86 | 47.0 | 85 | 46.4 | 0.917 |
Rural | 125 | 56.8 | 186 | 47.4 | 97 | 53.0 | 98 | 53.6 | ||
Education (years) | ||||||||||
< 12 | 41 | 18.6 | 99 | 25.3 | 0.061 | 39 | 21.3 | 37 | 20.2 | 0.797 |
≥ 12 | 179 | 81.4 | 293 | 74.7 | 144 | 78.7 | 146 | 79.8 | ||
History of abdominal surgery | ||||||||||
Yes | 120 | 54.5 | 198 | 50.5 | 0.338 | 107 | 58.5 | 105 | 57.4 | 0.832 |
No | 100 | 45.5 | 194 | 49.5 | 76 | 41.5 | 78 | 42.6 | ||
History of diabetes | ||||||||||
Yes | 83 | 37.7 | 132 | 33.7 | 0.313 | 75 | 41.0 | 70 | 38.9 | 0.686 |
No | 137 | 62.3 | 260 | 66.3 | 108 | 59.0 | 113 | 61.1 | ||
History of smoking | ||||||||||
Yes | 83 | 37.7 | 168 | 42.9 | 0.216 | 53 | 29.0 | 59 | 32.2 | 0.496 |
No | 137 | 62.3 | 224 | 57.1 | 130 | 71.0 | 124 | 67.8 | ||
Tumor location | ||||||||||
Gastric body | 79 | 35.9 | 99 | 25.3 | 0.020 | 56 | 26.8 | 44 | 24.0 | 0.331 |
Between | 96 | 43.6 | 197 | 50.3 | 92 | 53.6 | 97 | 53.0 | ||
Pyloric canal | 45 | 20.5 | 96 | 24.5 | 35 | 19.7 | 42 | 23.0 | ||
Tumor size (cm) | ||||||||||
< 4 | 123 | 57.7 | 259 | 66.1 | 0.040 | 108 | 59.0 | 98 | 53.6 | 0.292 |
≥ 4 | 97 | 42.3 | 133 | 33.9 | 75 | 41.0 | 85 | 46.4 | ||
Preoperative chemotherapy | ||||||||||
Yes | 21 | 9.5 | 22 | 5.6 | 0.068 | 14 | 92.3 | 15 | 92.4 | 0.847 |
No | 199 | 90.5 | 370 | 94.4 | 169 | 7.7 | 168 | 7.6 | ||
Clinical T factor | ||||||||||
T1 | 58 | 26.4 | 73 | 18.6 | 0.009 | 41 | 22.4 | 42 | 23.0 | 0.342 |
T2 | 46 | 20.9 | 99 | 25.3 | 44 | 24.0 | 31 | 16.9 | ||
T3 | 52 | 23.6 | 130 | 33.2 | 43 | 23.5 | 53 | 29.0 | ||
T4 | 64 | 29.1 | 90 | 23.0 | 55 | 30.1 | 57 | 31.1 | ||
Clinical N factor | ||||||||||
N0 | 101 | 45.9 | 219 | 55.9 | 0.018 | 80 | 43.7 | 92 | 50.3 | 0.209 |
N1–3 | 119 | 54.1 | 173 | 44.1 | 103 | 56.3 | 91 | 49.7 |