Table 2.

Distributions (median and interquartile range) of facility-aggregated laboratory values, by facility percentage of black patients, facility percentage of patients aged <65 years, and facility percentage of patients on dialysis ≥3 years

Facility-aggregated laboratory values
Facility % Black Patients
<77–3131–57≥57
Facility median PTH, pg/ml311 [274, 343]369 [298, 412]382 [292, 408]396 [313, 490]
Facility % patients with PTH ≥600 pg/ml16 (4, 27)20 (10, 29)18 (13, 24)28 (22, 38)
Facility % patients with corrected calcium <8.4 mg/dl22 (19, 30)27 (22, 37)24 (21, 31)31 (25, 40)
Facility % patients with corrected calcium ≥9.5 mg/dl13 (7, 16)9 (6, 15)12 (7, 16)12 (8, 15)
Facility % patients with phosphorus ≥5.5 mg/dl39 (21, 57)36 (32, 43)32 (25, 37)34 (23, 41)
Facility % Patients Aged <65 yr
<3838–4949–64≥64
Facility median PTH, pg/ml310 [271, 381]317 [284, 468]394 [342, 436]386 [273, 423]
Facility % patients with PTH ≥600 pg/ml11 (4,22)25 (17, 38)24 (19, 34)21 (11, 29)
Facility % patients with corrected calcium <8.4 mg/dl29 (22, 35)26 (21, 44)22 (15, 30)26 (19, 38)
Facility % patients with corrected calcium ≥9.5 mg/dl8 (4, 13)9 (4, 16)12 (9, 16)15 (10, 17)
Facility % patients with phosphorus ≥5.5 mg/dl34 (21, 40)41 [36, 57]32 (26, 42)33 (28, 42)
Facility % Patients on Dialysis ≥3 yr
<4141–4848–56≥56
Facility median PTH, pg/ml314 [271, 391]374 [286, 421]390 [308, 404]368 [295, 492]
Facility % patients with PTH ≥600 pg/ml14 (7, 22)25 (13, 33)19 (13, 27)25 (20, 37)
Facility % patients with corrected calcium <8.4 mg/dl25 (21, 33)26 (18, 37)23 (14, 30)33 (25, 40)
Facility % patients with corrected calcium ≥9.5 mg/dl10 (6, 18)14 (4, 16)13 (7, 18)9 (7, 12)
Facility % patients with phosphorus ≥5.5 mg/dl38 (22, 41)39 (25, 47)32 (23, 36)39 (29, 49)
  • PTH, parathyroid hormone.