Table 2 Outcome analysis

retrospective without SDD (n = 68)

retrospective with SDD (n = 53)

prospective with SDD (n = 81)

Mortality [30 days postoperative]

12 (17.6%)

(10.2% - 28.5%)

OR: 1 ^ref)

1 (1.9%) (0.0% - 10.9%)

OR: 0.09 (0.01-0.71)

1 (1.2%)

(0.0% - 7.3%)

OR: 0.06 (0.01-0.46)

<0.001 ^A)

Anastomotic

Leakage

9 (13.2%)

(6.9% - 23.5%)

OR: 1 ^ref)

2 (3.8%)

(0.3% - 13.5%)

OR: 0.26 (0.05 - 1.24)

6 (7.4%)

(3.2% - 15.5%)

OR: 0.52 (0.18-1.56)

0.162 ^A)

Postoperative

Pneumonia

17 (25.0%)

(16.2% - 36.5%)

OR: 1 ^ref)

6 (11.3%)

(4.9% - 22.9%)

OR: 0.38 (0.14-1.05)

4 (4.9%)

(1.6% - 12.4%)

OR: 0.16 (0.05-0.49)

0.001 ^A)

length of hospital stay [days]

25.2 ± 18.0

21.8 ± 13.7

20.2 ± 10.9

0.121 ^B)