Table 2 The characteristics of included patients
Variables | DVT group (n = 41) | Non-DVT group (n = 314) | χ2 | p |
|---|---|---|---|---|
Age (years) | ||||
 < 50 | 7 (17.07%) | 227 (72.29%) | 1.209 | 0.031 |
 ≥ 50 | 34 (82.93%) | 87 (27.71%) |  |  |
BMI (kg/m2) | ||||
 < 25 | 26 (63.41%) | 186 (59.24%) | 1.144 | 0.101 |
 ≥ 25 | 15 (36.59%) | 128 (40.76%) |  |  |
Diabetes | ||||
 Yes | 12 (29.27%) | 73 (23.25%) | 1.118 | 0.062 |
 No | 29 (70.73%) | 241 (76.75%) |  |  |
Hypertension | ||||
 Yes | 22 (53.65%) | 62 (19.75%) | 1.133 | 0.019 |
 No | 19 (46.35%) | 252 (80.25%) |  |  |
Hyperlipidemia | ||||
 Yes | 10 (24.39%) | 62 (19.76%) | 1.181 | 0.112 |
 No | 31 (75.61%) | 246 (78.34%) |  |  |
D-dimer (mg/L) | ||||
 < 0.5 | 5 (12.20%) | 211 (67.20%) | 1.226 | 0.036 |
 ≥ 0.5 | 36 (87.80%) | 103 (32.80%) |  |  |
ASA classification | ||||
 Level I | 20 (48.78%) | 156 (49.68%) | 1.140 | 0.074 |
 Level II | 21 (51.22%) | 158 (50.32%) |  |  |
Duration of surgery (min) | ||||
  < 60 | 11 (26.83%) | 181 (57.64%) | 1.183 | 0.019 |
  ≥ 60 | 30 (73.17%) | 133 (42.26%) |  |  |
Intraoperative blood transfusion | ||||
 Yes | 10 (24.39%) | 35 (11.15%) | 1.128 | 0.054 |
 No | 31 (75.61%) | 279 (88.85%) |  |  |
Intraoperative pneumoperitoneum pressure (mmHg) | ||||
 < 15 | 16 (39.02%) | 202 (64.33%) | 1.102 | 0.006 |
 ≥ 15 | 25 (60.98%) | 112 (35.67%) |  |  |
Duration of days in bed | ||||
 < 3 | 12 (29.27%) | 226 (71.97%) | 1.177 | 0.031 |
 ≥ 3 | 29 (70.73%) | 88 (28.03%) |  |  |