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Table 2 Healthcare utilization in stage 3–5 NDD-CKD Patients, Medicare and commercially insured (MarketScan) datasets

From: Prevalence, treatment patterns, and healthcare resource utilization in Medicare and commercially insured non-dialysis-dependent chronic kidney disease patients with and without anemia in the United States

  Medicarea Commercially insured
  Unadjusted Adjustedb Unadjusted Adjusteda
Healthcare utilization Non-anemia Anemia Relative risk (95% CI) Non-anemia Anemia Relative risk (95% CI)
Number of claims, PPY
 Hospitalizations 0.45 0.93 1.33 (1.31–1.34) 0.25 0.63 1.42 (1.38–1.47)
 ED visits 0.50 0.75 1.14 (1.12–1.15) 0.34 0.58 1.15 (1.11–1.19)
 SNF admissions 0.21 0.55 1.56 (1.53–1.59)
 Hospice admissions 0.10 0.27 1.52 (1.48–1.55)
 Outpatient visits 23.77 31.74 1.18 (1.18–1.18) 20.59 32.01 1.23 (1.22–1.23)
Length of hospitalization for all patients (days)
 Mean (SD) 2.36 (7.47) 5.24 (12.39) 0.93 (5.03) 2.61 (10.38)
 Median 0.00 0.00 0.00 0.00
 IQR 1.00 5.25   0.00 0.00  
Length of hospitalization for hospitalized patients (days)
 Mean (SD) 9.14 (12.42) 12.49 (16.60) 7.52 (12.47) 10.96 (19.01)
 Median 5.00 7.00 4.00 5.00
 IQR 8.00 12.00   6.00 9.00  
Physician visits, PPY
 Nephrologist 1.21 1.97 1.49 (1.48–1.50) 1.02 1.60 1.46 (1.43–1.50)
 Cardiologist 2.40 3.06 0.97 (0.96–0.97) 0.69 0.94 0.92 (0.90–0.95)
 Hematologist 0.02 0.09 4.29 (4.08–4.52) 0.11 0.46 2.90 (2.76–3.04)
 Endocrinologist 0.35 0.39 1.02 (1.00–1.03) 0.27 0.33 1.05 (1.00–1.09)
 Primary care practitioner 7.75 9.86 1.12 (1.11–1.12) 4.03 5.27 1.10 (1.09–1.12)
  1. CKD chronic kidney disease, NDD non-dialysis-dependent, ED emergency department, PPY per person-year, SNF skilled nursing facility
  2. aIncluding patients aged 66–85 years
  3. bPoisson regressions adjusted for demographics, comorbid conditions, inflammatory conditions, and CKD stage