Perioperative outcomes and survival of radical cystectomy as a function of body mass index

Table 2 Postoperative patient characteristics

		Normal weight(BMI 18.5-24.9)	Underweight(BMI < 18.5)	Overweight(BMI 25.0-29.9)	Obese(BMI > 30)	P value
Length of stay (median, IQR), d		8 (7-10)	13 (10-16)	8 (7-11)	9 (7-14)	0.054
Prolonged length of stay (> 7 d)	No	39 (35%)	0 (0%)	61 (38%)	49 (35%)	0.137
	Yes	73 (65%)	9 (100%)	99 (62%)	93 (65%)
Estimated blood loss (median, IQR), mL		500 (400-700)	600 (450-925)	700 (500-1000)	800 (600-1100)	< 0.001
Urinary diversion	Ileal conduit	70 (61.9%)	8 (88.9%)	88 (55%)	68 (47.9%)	0.160
	Orthotopic ileal neobladder	27 (23.9%)	1 (11.1%)	58 (26.2%)	59 (41.5%)
	Continent cutaneous diversion	14 (12.3%)	0 (0%)	12 (7.4%)	11 (7.7%)
	Cutaneous ureterostomy	0 (0%)	0 (0%)	1 (0.6%)	0 (0%)
	None	4 (3.5%)	0 (0%)	2 (1.2%)	1 (0.7%)
Pathologic tumor/nodal stage	No evidence of disease (pT0)	8 (7%)	0 (0%)	2 (1%)	9 (6%)	0.01
	Localized disease (pT0-2bN0)	45 (40%)	2 (22%)	73 (46%)	76 (53%)
	Locally advanced disease (pT3-4bN0)	25 (22%)	6 (67%)	49 (30%)	33 (23%)
	Solitary nodal metastasis (pT × N1)	12 (11%)	0 (0%)	14 (9%)	12 (9%)
	Multiple nodal metastases (pT × N2-3)	23 (20%)	1 (11%)	22 (14%)	12 (9%)
Readmission within 30 d	No	83 (75%)	6 (67%)	113 (71%)	97 (70%)	0.85
	Yes	28 (25%)	3 (33%)	46 (29%)	41 (30%)
Adjuvant chemotherapy	No	74 (67%)	7 (78%)	105 (66%)	93 (67%)	0.907
	Yes	36 (33%)	2 (22%)	54 (34%)	45 (33%)
Recurrence of disease	No	81 (72%)	5 (56%)	113 (71%)	97 (69%)	0.031
	Yes	31 (28%)	4 (44%)	47 (29%)	44 (31%)
Deceased	No	59 (52%)	2 (22%)	95 (59%)	91 (64%)	0.727
	Yes	54 (48%)	7 (78%)	65 (41%)	50 (36%)

BMI: Body mass index; IQR: Inter-quartile range.