Table 1 Baseline and perioperative demographic data

Age year, median ± SD (range)

67.8 ± 8.4

66.0 ± 8.9

0.283^c

BMI kg/m², median ± SD (range)

25.5 ± 3.6

26.2 ± 3.6

0.313^c

ASA score ≥ 2, no. (%)

25(52.1)

38(58.5)

0.567^a

Previous abdominal surgery, no. (%)

13 (27.1)

20 (30.8)

0.835^a

Preoperative clinical stage

0.563^a

 Ta Tis

5 (10.4)

9 (13.8)

 T1

16 (33.3)

26 (40.0)

 T2

27 (56.3)

30 (46.2)

 TUR-BT, n (%)

23 (47.9)

38 (58.5)

0.340^a

New adjuvant chemotherapy, n (%)

14 (29.2)

21 (32.3)

0.837^a

Operative time, median ± SD, min

286.5 ± 34.5

272.1 ± 35.5

0.036^b

Estimated blood loss, mean ± SD, mL

405.2 ± 173.3

383.0 ± 180.0

0.517^c

Transfusion rate, no. (%)

3(6.3)

5(7.7)

0.999^b

Interval to flatus, mean ± SD, h

35.5 ± 9.7

42.7 ± 10.8

0.0004^c

Interval to solid food, mean ± SD, day

4.8 ± 1.3

6.0 ± 1.7

0.0017^c

Length of hospital stay, mean± SD, day

12.7 ± 2.0

14.0 ± 2.7

0.0049^c