Table 2. Oncologic outcomes among the BMI quartiles in patients treated with radical nephroureterectomy for upper tract urothelial carcinoma.

BMI quartiles†	Recurrence (%)	OR (95%, CI)*	P	CSM (%)	OR (95%, CI)*	P	OM (%)	OR (95%, CI)*	P
1	35 (31.8)	1		34 (30.9)	1		29 (26.4)	1
2	22 (20.0)	0.479 (0.243-0.942)	0.033	15 (13.6)	0.327 (0.159-0.674)	0.002	11 (10.0)	0.282 (0.126-0.630)	0.002
3	30 (27.3)	0.757 (0.398-1.441)	0.397	22 (20.0)	0.566 (0.294-1.090)	0.089	17 (15.5)	0.521 (0.255-1.067)	0.075
4	24 (21.8)	0.711 (0.367-1.376)	0.311	16 (14.5)	0.385 (0.187-0.795)	0.010	12 (10.9)	0.358 (0.160-0.799)	0.012

^*ORs were calculated by unconditional logistic regression analysis and adjusted for pathologic stage and grade; ^†Preoperative BMI was classified by quartiles of the range: quartile 1, <21.7 kg/m²; quartile 2, 21.7-23.7 kg/m²; quartile 3, 23.8-25.7 kg/m²; quartile 4, ≥25.8 kg/m². BMI, body mass index; CSM, cancer specific mortality; OM, overall mortality; CI, confidence interval; OR, odds ratio.