Table 3.

Association between clinical variables at diagnostic biopsy and time from biopsy to death using a multivariable Cox regression model

Baseline	Hazard ratio	95% CI	P value
Age at diagnosis	1.06	1.03−1.08	<0.001
Male sex	1.18	0.69−2.01	0.540
Race
Ref: Caucasian
African American	2.08	0.62−6.99	0.235
Asian	1.22	0.16−9.36	0.846
Diabetes at diagnosis	0.73	0.23−2.32	0.590
Hypertension at diagnosis	0.93	0.53−1.63	0.800
Chronic kidney disease stage at diagnosis
Ref: 1 (≥90 ml/min/1.73 m2)
2 (60 < 90 ml/min/1.73 m2)	1.40	0.59−3.29	0.440
3 (30 < 60 ml/min/1.73 m2)	1.57	0.65−3.79	0.318
4 (15 < 30 ml/min/1.73 m2)	3.71	1.44−9.54	0.007
5 (<15 ml/min/1.73 m2)	5.22	1.90−14.33	0.001
Urine protein excretion (g/24 h) at diagnosis
Ref: < 1
≥1 < 3	1.36	0.67−2.77	0.397
≥3	2.18	1.07−4.44	0.032

CI, confidence interval.

P values < 0.05 are considered to be significant.