Table 2.
The results of the univariate analysis for factors related to PPOI
| Subgroup | Statistics | PPOI | P value |
|---|---|---|---|
| Sex | .487 | ||
| Female | 38 (23.46%) | 1.0 | |
| Male | 124 (76.54%) | 0.73 (0.31, 1.76) | |
| Age (Years) | 59.51 ± 10.87 | 1.05 (1.01, 1.09) | .009 |
| BMI (kg/m2) | 24.66 ± 3.39 | 0.91 (0.81, 1.02) | .110 |
| Previous abdominal surgery | .574 | ||
| No | 131 (80.86%) | 1.0 | |
| Yes | 31 (19.14%) | 0.74 (0.26, 2.11) | |
| Operation time (min) | 236.41 ± 61.81 | 0.99 (0.99, 1.00) | .532 |
| Operative blood loss (mL) | 229.41 ± 172.75 | 1.00 (0.99, 1.00) | .693 |
| Blood transfusion | .154 | ||
| No | 131 (80.86%) | 1.0 | |
| Yes | 31 (19.14%) | 1.92 (0.78, 4.71) | |
| Tumor stage | .030 | ||
| I‐II | 89 (54.94%) | 1.0 | |
| III‐IV | 73 (45.06%) | 2.42 (1.09, 5.37) | |
| Postoperative body temp. (°C) | 37.59 ± 0.53 | 0.99 (0.47, 2.05) | .969 |
| Postoperative WBC (×109/L) | 12.76 ± 3.26 | 1.04 (0.92, 1.17) | .572 |
| Postoperative albumin (g/L） | 31.93 ± 3.22 | 0.83 (0.72, 0.95) | .007 |
| Postoperative K+ (mmol/L) | 3.75 ± 0.40 | 0.26 (0.08, 0.81) | .020 |
| Postoperative opioid analgesic | .002 | ||
| No | 100 (61.73%) | 1.0 | |
| Yes | 62 (38.27%) | 3.49 (1.56, 7.81) | |
| Operation methods | .027 | ||
| Open surgery | 63 (38.89%) | 1.0 | |
| Laparoscopic surgery | 99 (61.11%) | 0.41 (0.19, 0.90) |
Data were reported as a mean ± standard deviation for continuous variables and as a patient percentage for categorical variables. Values shown in bold are statistically significant (P < .05).
Abbreviations: BMI, body mass index; postoperative body temp., postoperative body temperature; WBC, white blood cell.