Table 3.

Variables associated with the initiation of dialysis with an eGFR≥10.5 ml/min per 1.73 m²

Variable	Reduced Model
	Odds Ratio	95% Confidence Interval	P Value
Facility level
Phosphate average (per 0.5-mmol/L increase)	0.26	0.17 to 0.39	<0.001
Patient level
Women	1.78	1.68 to 1.87	<0.001
Body mass index	0.99	0.99 to 1.00	<0.001
Hemoglobin (per 1-g/L increase)	1.01	1.01 to 1.01	<0.001
Phosphate (per 0.5-mmol/L increase)	0.45	0.43 to 0.46	<0.001
Peripheral vascular disease	1.24	1.16 to 1.33	<0.001
Acute coronary syndrome	1.16	1.08 to 1.24	<0.001
Pulmonary edema	1.51	1.41 to 1.61	<0.001
Chronic obstructive pulmonary disease	1.16	1.07 to 1.25	<0.001
Diabetes mellitus	1.43	1.31 to 1.56	<0.001
Hypertension	0.84	0.78 to 0.91	<0.001
Serious illness	1.31	1.21 to 1.41	<0.001
Coronary artery bypass graft	1.27	1.17 to 1.37	<0.001
Peritoneal dialysis	1.15	1.07 to 1.23	<0.001
Predialysis care>30 d	1.28	1.19 to 1.38	<0.001
Distance from facility (km)
<50 (referent)
50–150	0.90	0.84 to 0.98	0.02
>150	0.89	0.80 to 0.99	0.05
Cause of ESRD
Hypertension (referent)
Diabetes	0.96	0.87 to 1.06	0.39
GN	0.76	0.69 to 0.84	<0.001
Obstruction	0.78	0.65 to 0.93	0.01
Interstitial	0.86	0.73 to 1.02	0.09
PCKD	0.50	0.43 to 0.58	<0.001
Other	0.94	0.85 to 1.04	0.24
Unknown	0.95	0.85 to 1.06	0.37
Race
Caucasian (referent)
Asian	0.61	0.54 to 0.69	<0.001
Black	0.97	0.83 to 1.13	0.71
Indian Subcontinent	0.87	0.76 to 1.00	0.05
Aboriginal	0.86	0.75 to 0.98	0.02
Unknown	1.12	1.00 to 1.26	0.06
Other	0.62	0.53 to 0.72	<0.001
Year of first treatment	1.07	1.06 to 1.08	<0.001

The reduced model included the following covariates: facility-level factors (average phosphate), patient case mix (sex, body mass index, race, comorbidities, distance to facility, length of predialysis care, serum phosphate, and hemoglobin), and year. Geographic regions, 14; facilities, 63; patients, 23,902. Median number of patients per facility=795 (interquartile range=532–963). PCKD, polycystic kidney disease.