Table 1.

Distributions of demographic and clinical characteristics between propensity score–matched HD and PD cohorts

CharacteristicHD (n=10,136)PD (n=10,136)P Value
Sex0.64
 Female5475 (54.0)5508 (54.3)
 Male4661 (46.0)4628 (45.7)
Age, yr0.16
 <504378 (43.2)4229 (41.7)
 50–592535 (25.0)2577 (25.4)
 60–691743 (17.2)1830 (18.1)
 ≥701480 (14.6)1500 (14.8)
 Mean53.5±14.653.3 (14.9)0.34
Comorbidity
 Coronary artery disease2368 (23.4)2297 (22.7)0.24
 Congestive heart failure1793 (17.7)1756 (17.3)0.49
 Stroke950 (9.4)921 (9.1)0.48
 Hyperlipidemia4371 (43.1)4388 (43.3)0.81
 Hypertension9056 (89.3)8998 (88.8)0.19
 Diabetes3587 (35.4)3627 (35.8)0.56
 Dementia125 (1.2)121 (1.2)0.80
 Atrial fibrillation201 (2.0)216 (2.1)0.46
Medication
 Warfarin 302 (3.0)308 (3.0)0.81
 Clopidogrel940 (9.3)933 (9.2)0.87
 Aspirin5888 (58.1)5870 (57.9)0.80
Year of dialysis initiation0.97
 1998265 (2.6)282 (2.8)
 1999363 (3.6)362 (3.6)
 2000474 (4.7)481 (4.8)
 2001604 (6.0)581 (5.7)
 2002645 (6.4)603 (6.0)
 2003646 (6.4)665 (6.6)
 2004675 (6.7)669 (6.6)
 2005768 (7.6)770 (7.6)
 2006854 (8.4)865 (8.5)
 20071087 (10.7)1124 (11.1)
 20081212 (12.0)1238 (12.2)
 20091244 (12.3)1239 (12.2)
 20101299 (12.8)1257 (12.4)
  • Data are presented as n (%) or mean±SD. Distributions were compared using the t test for mean age and the chi-squared test for sex, age, comorbidity, and medication. HD, hemodialysis; PD, peritoneal dialysis.