Table 1.

Characteristics of patients in Network 6 before and after a quality improvement program (QIP) to enhance dialysis adequacy

Patient CharacteristicsPre-QIP Sample (n = 5309)Post-QIP Sample (n = 5753)
a P < 0.05.
b Coefficient of variation is equal to 100% × (standard deviation of URR)/(mean of URR).
URR (± SE)64.7 ± 0.169.8 ± 0.1a
    URR coefficient of variationb12.1%12.1%
Age (yr)57.7 ± 0.259.2 ± 0.2a
Gender
    male2472 (46.6%)2780 (48.3%)
    female2837 (53.4%)2673 (51.7%)
Race
    African American3828 (72.1%)4112 (71.5%)a
    White1397 (26.3%)1427 (24.8%)
    other84 (1.6%)214 (3.7%)
Cause of renal failure
    diabetes1709 (32.2%)1962 (34.1%)a
    all other causes3600 (67.8%)3791 (65.9%)
Time on dialysis (min)208.8 ± 0.5217.9 ± 0.5a
Blood flow (ml/min)374.9 ± 0.9410.6 ± 0.9a
Serum albumin (mg/dl)3.8 ± 0.13.9 ± 0.1a