Table 2.

Clinical operative data and kidney functions

Variable	Complete sample (n=307)	Control (n=266)	High output stoma (n=41)	P-value
Index surgery approach				0.015*
Open	195 (63.5)	162 (60.9)	33 (80.5)
Laparoscopic	112 (36.5)	104 (39.1)	8 (19.5)
Index surgery type
Low anterior resection	219 (71.3)	189 (71.1)	30 (73.2)	0.85
Open	121	99	22
Laparoscopic	98	90	8
IPAA	13 (4.2)	12 (4.5)	1 (2.4)	0.99
Open	8	7	1
Laparoscopic	5	5	0
Ileocolic resection	5 (1.6)	3 (1.1)	2 (4.9)	0.13
Open	5	3	2
CRS/HIPEC	27 (8.8)	23 (8.6)	4 (9.8)	0.77
Open	27	23	4
Others	43 (14.0)	39 (14.7)	4 (9.8)	0.48
Open	34	30	4
Laparoscopic	9	9	0
Stoma indication
Elective	264 (86.0)	227 (85.3)	37 (90.2)	0.48
Anastomotic leakage	28 (9.1)	24 (9.0)	4 (9.8)	0.78
Others	15 (4.9)	15 (5.6)	0 (0)	0.23
Serum creatinine (mg/dL)
At index	0.82 ± 0.24	0.79 ± 0.21	1.02 ± 0.33	< 0.0001*
At closure	0.96 ± 0.34	0.9 ± 0.3	1.3 ± 0.36	< 0.0001*
Serum creatinine ratio	1.18 ± 0.33	1.16 ± 0.31	1.36 ± 0.37	< 0.0001*
Interval from index to closure (wk)	26 (10–88)	24 (12–88)	36 (10–68)	0.45

Values are presented as number (%), number only, mean±standard deviation, or median (range).

IPAA, ileal pouch-anal anastomosis; CRS, cytoreductive surgery; HIPEC, hyperthermic intraperitoneal chemotherapy.

^*P<0.05.