Table 2.

Factors associated with GFR of <5 ml/min per 1.73m2 at initiation of dialysis in the United Statesa

Univariate Odds Ratio95% CIMultivariate Odds Ratioa95% CI
aUnivariate and multivariate logistic regression analyses of 90,897 patients who began dialysis in the United States between April 1, 1995 and June 30, 1997, adjusted also for ESRD network. CI, confidence interval; DM, diabetes mellitus; PD, peritoneal dialysis.
bUnable to transfer or ambulate.
Age (ref = <40 years)
40 to 640.640.61, 0.670.930.88, 0.98
≥650.400.38, 0.420.690.64, 0.73
Female (ref = male)1.551.50, 1.601.701.65, 1.76
Race (ref = Caucasian)
African American1.381.33, 1.431.010.97, 1.06
Hispanic1.511.44, 1.591.471.38, 1.56
Asian2.051.86, 2.261.661.49, 1.85
other2.031.87, 2.201.881.72, 2.05
Diabetes as cause of ESRD (ref = non-DM)0.470.46, 0.490.440.42, 0.45
Insurance status (ref = private)
Medicare only0.780.74, 0.821.030.97, 1.09
Medicaid only1.211.15, 1.270.940.88, 1.00
Medicare and Medicaid0.770.73, 0.820.880.82, 0.94
VA and other insurance(s)0.780.75, 0.810.980.93, 1.03
none2.081.96, 2.201.551.46, 1.66
Employment (ref = employed/student/homemaker)
unemployed0.880.84, 0.920.830.79, 0.88
retired, disabled, or medical leave of absence0.500.48, 0.510.760.73, 0.80
Presence of comorbid conditions
cardiac disease0.460.4, 0.470.610.59, 0.64
peripheral vascular disease0.470.45, 0.500.750.71, 0.79
hypertension0.900.87, 0.931.030.99, 1.07
poor functional statusb0.630.59, 0.690.800.74, 0.87
Serum albumin <3.5 mg/dl (ref ≥3.5 mg/dl)1.351.31, 1.401.501.45, 1.56
Hematocrit <28% (ref ≥28%)2.051.99, 2.121.801.74, 1.86
Hemodialysis (ref = PD)1.351.28, 1.421.41.37, 1.52
Year of initiation of dialysis (ref = 1995)
19960.960.93, 0.990.970.94, 1.01
19970.890.85, 0.930.910.87, 0.95