Table 3.

Risk factors for decline in eGFR of more than 20% at 1 year after surgery.

			Multivariate analysis
			Model 1∗			Model 2†
Characteristics	Category	Univariate analysis (p)	OR	95% CI	p	OR	95% CI	p
Age, yr	≥70 (Ref: <70)	0.23	3.08	0.31–30.30	0.34	3.13	0.29–33.40	0.35
Gender	Male (Ref: Female)	0.11	11.80	1.20–115.0	0.03	11.60	1.15–117.0	0.04
BMI, kg/m2	≥23 (Ref: <23)	0.77	0.27	0.04–1.93	0.19	0.21	0.03–1.56	0.13
Comorbiditya	Present (Ref: absent)	0.43	5.79	0.47–70.80	0.17	3.05	0.32–29.00	0.33
Baseline eGFR, mL/min/1.73 m2	<60 (Ref: ≥60)	0.85	0.45	0.04–5.04	0.52	0.37	0.04–3.64	0.40
Solitary kidney	Present (Ref: absent)	0.61	14.50	0.23–913.0	0.21	8.74	0.19–403.0	0.27
NS	≥9 (Ref: <9)	0.04	13.90	1.64–118.0	0.02
mNS	≥11 (Ref: <11)	0.01				13.50	1.70–107.0	0.01
Cold ischemic time, min	≥40 (Ref: <40)	0.09	7.88	1.02–60.80	0.04	7.95	0.93–67.80	0.06
Estimated blood loss, mL	≥200 (Ref: <200)	0.77	0.68	0.11–4.37	0.68	0.91	0.15–5.39	0.91
Operation time, min	≥200 (Ref: <200)	0.36	1.31	0.16–10.90	0.80	0.57	0.08–4.05	0.58

CI = confidence interval; eGFR = estimated glomerular filtration rate; NS = nephrometry score; OR = odds ratio; Ref = reference.

^∗Model 1 included NS.

^†Model 2 included modified NS.

^aDiabetes mellitus, hypertension, cardiovascular disease, systemic disease.