Risk Balancing of Cold Ischemic Time against Night Shift Surgery Possibly Reduces Rates of Reoperation and Perioperative Graft Loss
Table 7
Regression analysis of the risks for hospital discharge on dialysis (). Shown are the results of univariable and multivariable binary regression analyses to determine the odds ratios of the investigated variables for the risk of hospital discharge on dialysis (). Dialysis data were retrospectively available only for the period between 19 May 2003 and 31 Oct 2013. Analyzed were all cases () with standard kidney transplantations into nonpreoperated sites. Included into risk-adjusted multivariable analyses were only transplant variables with a value ≤ 0.2 in univariable regression analyses.
Continuous variables
Descriptive statistics
Univariable binary regression
Risk-adjusted multivariable binary regression
Med
Mean
Range
OR
95% CI
OR
95% CI
/%
Donor age [yr.]
53
52
5–88
3/0.3
<0.001
1.028
1.013–1.044
0.001
1.030
1.012–1.048
Donor BMI [kg/m2]
25
26
12–52
3/0.3
0.275
1.026
0.980–0.1075
Not selected
Donor creatinine [μmol/l]
70
91
0–8408
0
0.552
0.999
0.996–1.002
Recipient age [yr.]
56
54
18–77
0
0.181
1.012
0.995–1.029
0.418
Not calculated
Recipient BMI [kg/m2]
25
25
15–38
33/3.4
0.129
1.041
0.988–1.097
0.178
Not calculated
CIT [min.]
858
917
125–2458
6/0.6
0.289
1.000
1.000–1.001
Not selected
1st surgeon’s CUSUM
29
46
1–361
17/1.8
0.975
1.000
0.996–1.004
Categorical variables
OR
95% CI
OR
95% CI
/%
Night shift surgery 3 AM–6 AM
20
0
0.163
2.212
0.725–6.747
0.214
Not calculated
Right recipient’s fossa
614
0
0.229
0.775
0.512–1.174
Not selected
Right donor kidney
474
0
0.986
0.996
0.661–1.502
Number of arteries
One
735
0
Reference
Collinearity with number of arterial anastomoses
>one
250
0.053
1.544
0.995–2.396
Number of arterial anastomoses
One
888
0
Reference
Reference
>one
97
0.039
1.842
1.031–3.292
0.066
Not calculated
Number of veins
One
950
0
Reference
Not selected
>one
35
0.832
1.122
0.388–3.245
Number of venous anastomosis
One
984
0
Reference
>one
1
1.000
0.000
0.000
Stenting of ureter anastomosis
Nonstented
242
3/0.3
Reference
Stented
740
.376
0.811
0.510–1.290
Not selected because of a value > 0.2 in univariable analyses. Odds ratios and 95% CI were not calculated because of a value > 0.05 in multivariable analyses. Little’s MCAR test: Chi-Quadrat = 26.171, DF = 33, and = 0.795.
