Table 1.
Population characteristics for all parathyroidectomy patients by dialysis modality
| Variable | All (N = 3,008) | HD (N = 2,749) | PD (N = 259) |
|---|---|---|---|
| Mean (SD) or Count (%) | Mean (SD) or Count (%) | Mean (SD) or Count (%) | |
| Age at Parathyroidectomy | |||
| Age (years) | 51.7 (13.1) | 51.8 (13.0) | 50.4 (13.9) |
| Dialysis Vintage (years) | 7.0 (3.9) | 7.1 (3.9) | 5.3 (3.4) |
| Sex and Race Categories | |||
| Male (%) | 1,487 (49.4%) | 1,395 (50.7%) | 92 (35.5%) |
| White (%) | 1,173 (39.0%) | 1,048 (38.1%) | 125 (48.3%) |
| Black (%) | 1,687 (56.1%) | 1,567 (57.0%) | 120 (46.3%) |
| Asian (%) | 73 (2.4%) | NR | NR |
| Other (%) | 75 (2.5%) | NR | NR |
| Cause of ESKD | |||
| Hypertension (%) | 1,116 (37.1%) | 1,007 (36.6%) | 109 (42.1%) |
| Diabetes (%) | 822 (27.3%) | 789 (28.7%) | 33 (12.7%) |
| Glomerulonephritis (%) | 525 (17.5%) | 467 (17.0%) | 58 (22.4%) |
| Cystic kidney (%) | 172 (5.7%) | NR | NR |
| Other (%) | 75 (2.5%) | NR | NR |
| Year of Parathyroidectomy | |||
| 2016 (%) | 1,594 (53.0%) | 1,462 (53.2%) | 132 (51.0%) |
| 2017 (%) | 1,414 (47.0%) | 1,287 (46.8%) | 127 (49.0%) |
| Other Baseline Variables | |||
| Hospitalization in Prior 12 Months (%) | 1,431 (47.6%) | 1,361 (49.5%) | 70 (27.0%) |
| Serum Calcium (corrected, mg/dL) | 9.4 (0.8) | 9.4 (0.8) | 9.6 (0.9) |
| Serum Phosphate (mg/dL) | 6.4 (1.6) | 6.4 (1.6) | 6.5 (1.7) |
| Calcimimetic Use Within 90 Days (%) | 1,288 (42.8%) | 1,205 (43.8%) | 83 (32.0%) |
| IV Vitamin D Use Within 90 Days (%) | 1,407 (46.8%) | NR | NR |
| Phosphate binder Use Within 90 Days (%) | 1,417 (47.1%) | 1,312 (47.7%) | 105 (40.5%) |
| Charlson Comorbidity Index | |||
| CCI Index (continuous) | 3.6 (3.4) | 3.7 (3.4) | 1.9 (2.5) |
| CCI Score 0 (%) | 504 (16.8%) | 405 (14.7%) | 99 (38.2%) |
| CCI Myocardial Infarction (%) | 450 (15.0%) | 432 (15.7%) | 18 (6.9%) |
| CCI Congestive Heart Failure (%) | 1,279 (42.5%) | 1,231 (44.8%) | 48 (18.5%) |
| CCI Peripheral Vascular Disease (%) | 840 (27.9%) | 820 (29.8%) | 20 (7.7%) |
| CCI Cerebrovascular Disease (%) | 361 (12.0%) | 341 (12.4%) | 20 (7.7%) |
Selected cardiovascular-related CCI conditions included in table. NR = counts < 11 not reportable according to the data use agreement with the USRDS
CCI Charlson Comorbidity Index, HD hemodialysis, PD peritoneal dialysis, SD standard deviation, IV intravenous