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Table 4 Association of dialysis-related health outcomes with Intensity of predialysis nephrology care

From: Predialysis nephrology care and dialysis-related health outcomes among older adults initiating dialysis

Predialysis nephrology care Adjusted relative risk ratio (99 % CI)a
  Low intensityb Moderate intensityb High intensityb
N = 12,566 N = 7,688 N = 10,956
At Dialysis Initiation, %
 Very low eGFRc 0.72 (0.66 to 0.80) 0.67 (0.59 to 0.77) 0.66 (0.59 to 0.75)
 Severe anemiad 0.96 (0.92 to 1.01) 0.84 (0.79 to 0.90) 0.70 (0.65 to 0.74)
 Permanent vascular accessb 1.57 (1.48 to 1.67) 2.61 (2.45 to 2.77) 3.60 (3.42 to 3.79)
  Fistula 1.66 (1.52 to 1.80) 2.72 (2.50 to 2.97) 3.85 (3.58 to 4.14)
  Graft 1.65 (1.46 to 1.87) 3.20 (2.84 to 3.61) 4.28 (3.83 to 4.77)
  Other (graft or fistula) 1.15 (0.96 to 1.38) 1.18 (0.94 to 1.49) 1.60 (1.30 to 1.97)
 Peritoneal Dialysis 1.44 (1.29 to 1.60) 2.01 (1.77 to 2.27) 2.12 (1.90 to 2.37)
At Dialysis Follow-up, %
 Mortality at 2 years 0.94 (0.92 to 0.97) 0.87 (0.84 to 0.91) 0.80 (0.77 to 0.82)
 Kidney transplant at 2 years 1.41 (0.95 to 2.10) 2.13 (1.39 to 3.27) 2.72 (1.91 to 3.88)
  1. aWeighted by propensity scores derived from logistic regression models including age, sex, race, Hispanic ethnicity, body mass index, hospital and physician density, urban residence, median income, region, predialysis comorbidities (listed in Table 1), veteran status, and predialysis outpatient care venue. No predialysis nephrology care visits is the reference group in each of the 3 propensity score models
  2. bPatients were categorized by intensity of predialysis nephrology care: low intensity care (1–3 nephrology visits), moderate intensity care (4–6 nephrology visits), and high intensity care (>6 nephrology visits). Patients with no predialysis nephrology care were the reference group
  3. ceGFR <5 mL/min/1.73m2
  4. dhemoglobin level <9 g/dL
  5. eN = Low Intensity = 11,649; Moderate Intensity = 6,894; High Intensity = 9,708