Table.2.
Clinical characteristics of patients in the study before and after propensity score
| Before matching | p | After matching | p | |||||
|---|---|---|---|---|---|---|---|---|
| Non-antibiotics(n = 186) | Antibiotics (n = 67) | ASDa | Non-antibiotics(n = 55) | Antibiotics (n = 55) | ASDa | |||
| Age, mean ± SD | 52.8 ± 13.0 | 55.6 ± 14.5 | 0.686 | 0.014 | 55.9 ± 13.4 | 54.5 ± 14.1 | 0.021 | 0.609 |
| Gender [No. %] | 0.024 | 0.763 | 0.022 | 0.327 | ||||
| Female | 125 (67.2) | 143 (64.2) | 31 (56.4) | 37 (67.3) | ||||
| Male | 61 (32.8) | 24 (35.8) | 24 (43.6) | 18 (32.7) | ||||
| Diabetes [No. %] | 8 (4.3) | 4 (6) | 0.014 | 0.738 | 6 (10.9) | 4 (7.3) | 0.011 | 0.742 |
| Hypertension [No. %] | 28 (15.1) | 18 (26.9) | 0.022 | 0.042 | 16 (29.1) | 14 (25.5) | 0.02 | 0.831 |
| Previous abdominal surgery [No. %] | 24 (12.9) | 10 (14.9) | 0.017 | 0.835 | 7 (12.7) | 8 (14.5) | 0.015 | 1 |
| Lesion location [No. %] | 0.24 | < 0.001 | 0.04 | 0.839 | ||||
| Upper 1/3 stomach | 48 (25.8) | 22 (32.8) | 18 (32.7) | 16 (29.1) | ||||
| Middle 1/3 stomach | 63 (33.9) | 22 (32.8) | 20 (36.4) | 19 (34.5) | ||||
| Lower 1/3 stomach | 75 (40.3) | 23 (34.3) | 17 (30.9) | 20 (36.4) | ||||
| Median tumor size (mm, IQR) | 10 (8–15) | 13 (8–26) | 0.596 | 0.127 | 14 (8–20) | 13 (8–19) | 0.044 | 0.507 |
| Pathology [No. %] | 0.021 | 0.546 | 0.018 | 0.823 | ||||
| Mucosa / Submucosa | 142 (76.3) | 51 (76.1) | 41 (74.5) | 43 (78.2) | ||||
| Muscular layer | 44 (23.7) | 16 (23.9) | 14 (25.5) | 12 (21.8) | ||||
| Intraoperative bleeding [No. %] | 54 (29) | 27 (40.3) | 0.024 | 0.095 | 22 (40) | 21 (38.2) | 0.021 | 1 |
| Median operation time (min, IQR) | 33 (23–43) | 37 (24.5–56.5) | 0.763 | 0.076 | 37 (30–51) | 37 (21.5–50.5) | 0.078 | 0.183 |
| En bloc resection [No. %] | 173 (93) | 60 (89.6) | 0.014 | 0.428 | 54(98.2) | 50 (90.9) | 0.011 | 0.206 |
| Median maximum body temperature (°C, IQR) | 37.6 (37.6–38) | 38 (37.8–38.6) | 0.023 | < 0.001 | 37.9 (37.6–38.4) | 38 (37.7–38.4) | 0.02 | 0.523 |
| < 38.5 °C | 174 (93.5) | 46 (68.7) | 45 (81.8) | 43 (78.2) | ||||
| ≥ 38.5 °C | 12 (6.5) | 21 (31.3) | 10 (18.2) | 12 (21.8) | ||||
| Stomach tube placement [No. %] | 124 (66.7) | 46 (68.7) | 0.024 | 0.008 | 39 (70.9) | 38 (69.1) | 0.023 | 1 |
aThe absolute standardized difference (ASD) was used to assess the balance of covariates between the two groups. Variables with an ASD > 0.10 is considered to be imbalance