. 2017 Jan 19;2017:5362704. doi: 10.1155/2017/5362704

Table 4.

Regression analysis of the risks for perioperative graft loss (n = 55). Shown are the results of univariable and multivariable binary regression analyses to determine the odds ratios of the investigated variables for the risk of perioperative graft loss (n = 55) during primary hospitalization period. Analyzed were all 1262 cases with standard kidney transplantations into nonpreoperated sites between 1 January 2000 and 31 October 2013. Included into risk-adjusted multivariable analyses were only transplant variables with a p value < 0.2 in univariable regression analyses.

Continuous variables	Descriptive statistics				Univariable binary regression			Risk-adjusted multivariable binary regression
	Med	Mean	Range	MV^§	p	OR	95% CI	p	OR	95% CI
	Med	Mean	Range	n/%	p	OR	95% CI	p	OR	95% CI
Donor age [yr.]	53	52	5–88	4/0.3	0.003	1.029	1.009–1.048	0.017	1.027	1.005–1.050
Donor BMI [kg/m²]	25	25	15–38	4/0.3	0.086	1.051	0.993–1.112	0.276	Not calculated²
Donor creatinine [μmol/l]	70	91	0–8840	0	0.835	1.000	0.998–1.002	Not selected¹
Recipient age [yr.]	55	54	18–77	0	0.580	1.006	0.985–1.028	Not selected¹
Recipient BMI [kg/m ² ]	25	25	15–38	35/2.8	0.032	1.080	1.007–1.158	0.016	1.103	1.019–1.194
CIT [min.]	858	916	125–2458	65/5.2	0.059	1.001	1.000–1.001	0.481	Not calculated²
1st surgeon's CUSUM	29	46	1–361	12/1.0	0.615	1.001	0.997–1.006	Not selected¹

Categorical variables			N	MV^§	p	OR	95% CI	p	OR	95% CI
Categorical variables			N	n/%	p	OR	95% CI	p	OR	95% CI

Night shift surgery 3 AM–6 AM			25	0	0.004	5.131	1.711–15.389	0.003	5.543	1.758–17.47
Recipient's right fossa			740	0	0.500	0.844	5.15–1.381	Not selected¹
Right donor kidney			611	0	0.715	0.913	0.559–1.489	Not selected¹
Number of arteries
One			947	0	Reference			Collinearity with number of arterial anastomoses
>one			315	0	0.043	1.716	1.017–2.893	Collinearity with number of arterial anastomoses
Number of arterial anastomoses
One			1140	0	Reference			Reference
>one			122	0	0.060	1.853	0.974–3.525	0.069	Not calculated²
Number of veins
One			1220	0	Reference			Not selected¹
>one			42	0	0.963	0.967	0.231–4.053
Numbers of venous anastomoses
One			1261	0	Reference
>one			1	0	0.999	0.000	0.000
Stenting of ureter anastomosis
Nonstented			380	5/0.4	Reference
Stented			877	5/0.4	0.309	1.348	0.759–2.395

¹Not selected because of a p value > 0.2 in univariable analyses.

²Odds ratios and 95% CI were not calculated because of a p value > 0.05 in multivariable analyses.

^§Little's MCAR test: Chi-Square = 31.909, DF = 33, and p = 0.521.