Table 2 Preoperative, intraoperative, and postoperative factors among patients who had 12-month follow-up evaluation of serum creatinine available for LT-KDys detection (FU-SCr-available) and among patients who did not (SCr result not available). Among patients who had long-term serum creatinine, preoperative, intraoperative, and postoperative variables statistically associated with LT-KDys have been evaluated through univariate analysis. For qualitative data with more than two levels (e.g. type of surgery), the Wald test is used to provide an overall p value. For the numbers of preoperative risk factors for AKI, n=1 is used as a reference for the other levels, as well as the videolaparoscopic for the other surgical approach. The results presented as OR [95%CI] and p value

Male gender

43 (48.3%)

175 (52.4%)

144 (51.8%)

31 (55.4%)

1.15 [0.65; 2.05]

0.662

Age (yrs)

67.3 [53.7–75.6]

70.3 [60.8–78.2]

70.3 [61.0–78.1]

69.9 [56.5–78.6]

0.99 [0.97; 1.01]

0.475

Baseline eGFR(ml/min/1.73 m²)

81.5 [72.0–94.6]

81.3 [68.1–72.0]

80.7 [68.1–92.3]

83.3 [68.9–102.2]

1.02 [1; 1.03]

0.049

Baseline sCr (mg/dl)

0.81 [0.72–1.02]

0.83 [0.68–1.00]

0.83 [0.71–1.00]

0.76 [0.65–0.98]

0.62 [0.26; 1.48]

0.127

Comorbidities

 Diabetes

10 (16.9%)

49 (83.1%)

40 (81.6%)

9 (18.4%)

1.14 [0.52; 2.51]

0.685

 Hypertension

34 (16.7%)

169 (83.3%)

141 (83.4%)

28 (16.6%)

0.97 [0.55; 1.73]

1.000

 Vascular disease

4 (7.7%)

48 (92.3%)

40 (83.3%)

8 (16.7%)

0.99 [0.44; 2.25]

1.000

 Previous solid neoplasm

52 (19.2%)

219 (80.8%)

183 (83.6%)

36 (16.4%)

1.35 [0.69; 2.65]

0.371

 Previous hematologicneoplasm

2 (28.6%)

5 (71.4%)

5 (100%)

0

–

–

 Chronic heart failure

7 (13.5%)

45 (86.5%)

34 (75.6%)

11 (24.4%)

1.75 [0.83; 3.72]

0.139

 Nephrotoxic drugs

28 (17.5%)

132 (82.5%)

108 (81.8%)

24 (18.2%)

1.18 [0.66; 2.11]

0.653

 CKD

13 (20%)

52 (80%)

42 (80.8%)

10 (19.2%)

1.22 [0.57; 2.61]

Numbers of preop. riskfactors for AKI

0.416

 >2

16 (17.9%)

71 (21.3%)

63 (22.7%)

8 (14.3%)

0.69 [0.27; 1.78]

0.447

 >3

13 (14.6%)

57 (17.1%)

49 (17.6%)

8 (14.3%)

0.89 [0.34; 2.31]

0.814

 >4

6 (6.7%)

27 (8.1%)

20 (7.2%)

7 (12.5%)

1.91 [0.67; 5.43]

0.224

 >5

1 (1.1%)

12 (3.6%)

8 (2.9%)

4 (7.1%)

2.73 [0.71; 10.4]

0.141

 >6

0

1 (0.3%)

1 (0.4%)

0

–

–

Type of surgery

 Colorectal

59 (20.1%)

234 (79.9%)

192 (82.1%)

42 (17.9%)

1.24 [0.63; 2.44]

0.620

 Gastric

6 (15%)

34 (85%)

30 (88.2%)

4 (11.8%)

0.57 [0.19; 1.68]

0.361

 Oesophageal

0

9 (100%)

8 (88.9%)

1 (11.1%)

0.7 [0.08; 5.84]

1.000

 Hepatic

3 (17.6%)

14 (82.4%)

12 (85.7%)

2 (14.3%)

0.82 [0.18; 3.77]

1.000

 Pancreatic

4 (18.2%)

18 (81.8%)

17 (94.4%)

1 (5.6%)

0.28 [0.03; 2.14]

0.328

 Others

15 (38.5%)

24 (61.5%)

19 (79.2%)

5 (20.8%)

1.87 [0.85; 4.09]

0.116

PO complications

5 (7.2%)

64 (92.8%)

50 (70.1%)

14 (21.9%)

1.52 [0.77; 2.99]

0.263

 Cardiogenic Shock

2 (12.5%)

14 (87.5%)

7 (50%)

7 (50%)

5.53 [1.86; 16.5]

0.030

 Septic shock

1 (2.4%)

40 (97.6%)

33 (82.5%)

7 (17.5%)

1.06 [0.44; 2.53]

0.825

 Haemorrhagic shock

2 (10%)

18 (90%)

15 (83.3%)

3 (16.7%)

0.99 [0.28; 3.55]

1.000

 Stroke

0

2 (100%)

2 (100%)

0

–

–

SCr 24 h vs. baseline SCr

−0.08 [−0.20 to −0.08]

−0.01 [−0.10–0.12]

−0.02 [−0.11 to −0.09]

0.08 [−0.04–0.15]

2.14 [0.98; 4.69]

0.03

SCr 48 h vs. baseline SCr

−0.09 [−0.17–0.01]

−0.01 [−0.16–0.06]

−0.07 [−0.18–0.04]

0.04 [−0.05–0.20]

3.04 [1.24; 7.46]

<0.001

PO-AKI

1 (1.1%)

29 (8.7%)

19 (6.8%)

10 (17.9%)

2.96 [1.30; 6.78]

0.010