Table 3.

Demographics of Study Patients.

	Overall	Hemodialysis	Peritoneal dialysis	P value
Final cohort (patients): n	3017	2243	774
Age: mean (SD)	66.2 (14.8)	67.7 (14.7)	64.2 (14.4)	<.0001
Age group: n (%)				<.0001
18 to <40 years	183 (6.1%)	132 (5.9%)	51 (6.6%)
40 to <65 years	1041 (34.5%)	740 (33.0%)	301 (38.9%)
65 to <80 years	1201 (39.8%)	876 (39.1%)	325 (42.0%)
≥80 years	592 (19.6%)	495 (22.1%)	97 (12.5%)
Male sex: n (%)	1824 (60.5%)	1336 (59.6%)	488 (63.0%)	.0883
Race: n (%)				.0190
Caucasian	1730 (57.3%)	1285 (57.3%)	445 (57.5%)
Asian Oriental	610 (20.2%)	426 (19.0%)	184 (23.8%)
Asian Indian	396 (13.1%)	315 (14.0%)	81 (10.5%)
First Nations	125 (4.1%)	96 (4.3%)	29 (3.7%)
Black	33 (1.1%)	25 (1.1%)	8 (1.0%)
Other/multiracial	82 (2.7%)	67 (3.0%)	15 (1.9%)
Unknown	41 (1.4%)	29 (1.3%)	12 (1.6%)
Comorbidities: n (%)
Cardiovascular disease	1741 (57.7%)	1335 (59.5%)	406 (52.5%)	.889
Diabetes	2098 (69.5%)	1588 (70.8%)	510 (65.9%)	.011
Dialysis vintage: years
Median	3.3	3.8	2.4
Interquartile range	[1.7-6.1]	[1.8-7.1]	[1.3-3.9]
Dialysis vintage group: n (%)				<.00001
≤1 year	419 (13.9%)	283 (12.6%)	136 (17.6%)
1-3 years	982 (32.5%)	631 (28.1%)	351 (45.3%)
>3 years	1616 (53.6%)	1329 (59.3%)	287 (37.1%)