Table 2.

Characteristics of patients in each treatment group for advanced CKD (n=28,568)

Characteristics at Cohort EntryEnrolled in the USRDS or Had a Dialysis Procedure Code,an=19,165Chart Review,bn=1928P Valuec
Received Dialysis, n=437Discussing and/or Preparing for Dialysis, n=640Decision against Dialysis, n=851
Mean age (SD), yr65.4 (11.1)68.3 (10.5)68.4 (10.8)75.0 (10.3)<0.001
Race<0.001
 White11,133 (58.1)241 (55.1)363 (56.7)567 (66.6)
 Black6307 (32.9)108 (24.7)140 (21.9)165 (19.4)
 Other1725 (9.0)8 (20.1)137 (21.4)119 (14.0)
Sex0.40
 Women302 (1.6)4 (0.9)8 (1.3)9 (1.1)
 Men1863 (98.4)433 (99.1)632 (98.8)842 (98.9)
Mean Gagne comorbidity score (SD)4.3 (2.4)5.9 (2.7)5.1 (2.8)6.1 (3.0)<0.001
Comorbidities
 Hypertension5440 (28.4)199 (45.5)219 (34.2)354 (41.6)<0.001
 Coronary artery disease7062 (36.8)211 (48.3)280 (43.8)386 (45.4)<0.001
 Congestive heart failure5440 (28.4)199 (45.5)219 (34.2)354 (41.6)<0.001
 Diabetes mellitus11,950 (62.4)254 (58.1)340 (53.1)446 (52.4)<0.001
 Peripheral artery disease2439 (12.7)75 (17.2)96 (15.0)142 (16.7)<0.001
 Cancer3114 (16.2)109 (24.9)169 (26.4)273 (32.1)<0.001
 Chronic obstructive pulmonary disease2749 (14.3)126 (28.8)151 (23.6)241 (28.3)<0.001
 Dementia239 (1.2)17 (3.9)19 (3.0)75 (8.8)<0.001
 Stroke1458 (7.6)31 (7.1)63 (9.8)109 (12.8)<0.001
 Cirrhosis202 (1.1)19 (4.3)16 (2.5)17 (2.0)<0.001
Mean nephrology clinic visits in year prior (SD)4.4 (4.1)3.8 (3.2)3.8 (3.4)3.5 (4.8)<0.001
  • Values presented as n (%) except for where indicated. USRDS, US Renal Data System.

  • a In Medicare or Department of Veteran Affairs administrative files.

  • b Of a random sample of patients who were not enrolled in the USRDS during follow-up and did not have a dialysis procedure code during follow-up.

  • c Corresponds to chi-squared or ANOVA tests where appropriate.