Table 2: Summary statistics on input and output variables: Final five-output model.
| Variable | Observations (N = 7324) | Mean | Median | SD |
| Outputs | ||||
| Annual Dialysis Treatments | 11,221 | 9,976 | 6,154 | |
| % Patients with URR ≥ 65 | 97.9% | 100.0% | 3.4% | |
| % of Patients with Hb ≥ 10 | 93.9% | 96.4% | 7.9% | |
| Access-Related Non-Infection Rate | 97.4% | 97.9% | 2.1% | |
| Average Annual Non-Hospitalized Days | 351.7 | 352.3 | 4.7 | |
| Cost Inputs† | ||||
| Capital Costs (Buildings & Fixtures) | $217,778 | $193,779 | $124,005 | |
| Dialysis Machine Costs | $111,260 | $98,464 | $56,115 | |
| Operations & Maintenance | $117,068 | $101,394 | $66,595 | |
| Compensation for Direct Patient Care | $797,511 | $687,424 | $519,596 | |
| Ancillary Costs (Drugs & Supplies) | $849,661 | $727,230 | $518,280 | |
| Administrative and General and Other Costs | $633,053 | $558,541 | $325,845 | |
†Costs before wage index and annual inflation adjustments; URR: Urea Reduction Ratio; Hb: Hemoglobin.