Table 1.

Characteristics of Medicare FFS beneficiaries receiving maintenance dialysis, 2018

CharacteristicsUnique Beneficiaries, n (%)Beneficiaries with ≥90 d of Calcimimetic Use, n (row %)
Beneficiaries who were dialysis dependent (2018)373,874 (100)105,517 (28)
Age
 Age <65 yr194,356 (52)62,629 (32)
 Age ≥65 yr179,518 (48)42,888 (24)
Dual-eligible status
 Dual eligible for Medicare and Medicaid182,364 (49)58,343 (32)
 Not dual eligible for Medicare and Medicaid191,510 (51)47,174 (25)
Dialysis vintage
 Dialysis dependent for at least 3 yr189,254 (51)79,143 (42)
 Dialysis dependent for <3 yr184,620 (49)26,374 (14)
Race
 Black race131,617 (35)52,040 (40)
 Non-Black race242,257 (65)53,477 (22)
US Census Regiona
 Midwest75,257 (19)18,311 (24)
 Northeast61,978 (16)16,804 (27)
 South182,617 (46)54,256 (30)
 West75,876 (19)17,823 (23)
Size of dialysis provider chainb
 Large284,746 (71)87,878 (31)
 Medium43,115 (11)11,283 (26)
 Small and other73,060 (18)17,083 (23)
  • Calcimimetic use is defined as having at least 90 d of calcimimetic use, without a gap of no more than 60 d between any consecutive administrations. FFS, Fee-for-Service.

  • a The sum of patients for “US Census Region” and “size of dialysis provider chain” is greater than the total unique beneficiaries because certain patients were treated in multiple census regions and types of dialysis facilities over the course of the claims data period.

  • b Large dialysis provider chain comprises DaVita or Fresenius facilities; medium comprises Dialysis Clinic Inc., US Renal Care, American Renal Associates, and Satellite Healthcare facilities; remainder of facilities are classified as small and other.