Table 1.
Clinical and laboratory data of patients who underwent hepatic resections before propensity score matching and after propensity score matching
| Characteristic | Subcuticular suture | Mattress suture | p-value |
|---|---|---|---|
| Before PSM | n = 577 | n = 603 | |
| Age, years, median (range) | 69 (0–89) | 67 (21–89) | 0.002* |
| Gender, male, n (%) | 371 (64.3) | 406 (67.3) | 0.255 |
| BMI, kg/m2, median (range) | 22.6 (11.9–34.9) | 22.2 (14.9–36.2) | 0.257 |
| Smoking, n (%) | 308 (53.5) | 263 (43.6) | 0.014* |
| Hepatitis viral infection, n (%) | 234 (40.6) | 301 (49.9) | 0.001* |
| Diabetes mellitus, n (%) | 154 (26.7) | 118 (19.6) | 0.004* |
| HCC/Metastasis, others | 256/321 | 326/277 | 0.001* |
| Albumin, g/dl, median (range) | 4.0 (2.0–5.2) | 4.0 (1.8–5.2) | 0.004* |
| Platelet count, ×104/µl, median (range) | 19.0 (1.9–76.5) | 19.3 (2.9–69.1) | 0.340 |
| Child-Pugh classification, A, n (%) | 560 (97.1) | 543 (90.0) | < 0.001* |
| Number of tumours | 1 (1–24) | 1 (1–13) | 0.010* |
| Size of largest tumour (cm) | 2.8 (0.5–18.9) | 3.2 (0.8–21.0) | 0.161 |
| Repeat operation, n | 123 (21.3) | 72 (11.9) | < 0.001* |
| Type of hepatic resection, n (%) Lobectomy Segmentectomy Partial resection |
101 (17.5) 108 (18.7) 368 (63.8) |
167 (27.7) 150 (24.9) 286 (47.4) |
< 0.001* |
| Operative time (min) | 208 (30–980) | 335 (50–1510) | < 0.001* |
| Blood loss (ml) | 210 (0–10970) | 468 (0–21770) | < 0.001* |
| Blood transfusion (%) | 134 (23.2) | 140 (23.2) | 0.977 |
| Intraoperative abdominal drainage (%) | 235 (40.8) | 332 (55.1) | < 0.001* |
| Duration of antibiotics (day) | 3 (1–14) | 2 (1–13) | < 0.001* |
| After PSM | n = 121 | n = 121 | |
| Age, years, median (range) | 69 (28–85) | 69 (29–89) | 0.790 |
| Gender, male, n (%) | 81 (66.9) | 78 (64.5) | 0.685 |
| BMI, kg/m2, median (range) | 22.3 (13.9–32.9) | 22.2 (16.9–36.2) | 0.657 |
| Smoking, n (%) | 66 (54.6) | 55 (45.5) | 0.157 |
| Hepatitis viral infection, n (%) | 59 (48.8) | 61 (50.4) | 0.898 |
| Diabetes mellitus, n (%) | 29 (24.0) | 27 (22.3) | 0.761 |
| HCC/Metastasis, others | 66/55 | 68/53 | 0.796 |
| albumin, g/dl, median (range) | 4.0 (2.9–5.2) | 4.0 (1.8–4.9) | 0.933 |
| Platelet count, ×104/µl, median (range) | 19.3 (2.6–42.2) | 18.2 (3.5–45.5) | 0.258 |
| Child-Pugh classification, A, n (%) | 118 (97.5%) | 115 (95.0) | 0.308 |
| Number of tumours | 1 (1–10) | 1 (1–12) | 0.602 |
| Size of largest tumour (cm) | 2.8 (0.6–12.5) | 2.8 (0.8–13.0) | 0.424 |
| Repeat operation, n (%) | 21 (17.4%) | 22 (18.2) | 0.867 |
| Type of hepatic resection, n (%) Lobectomy Segmentectomy Partial resection |
15 (12.4) 30 (24.8) 76 (62.8) |
9 (7.4) 30 (24.8) 82 (67.8) |
0.422 |
| Operative time (min) | 254 (38–666) | 275 (50–505) | 0.511 |
| Blood loss (ml) | 230 (0–9340) | 330 (0–2915) | 0.993 |
| Blood transfusion, n (%) | 22 (18.2) | 24 (19.8) | 0.870 |
| Intraoperative abdominal drainage, n (%) | 51 (42.2) | 50 (41.3) | 0.896 |
| Duration of antibiotics (day) | 1 (1–7) | 2 (1–13) | 0.659 |
*
p < 0.05; BMI – body mass index
HCC – hepatocellular carcinoma; PSM – propensity score matching