Table 1.

Distribution of patient characteristics (%)a

Characteristicb No EPO Claims (n = 13,488) 1 to 3 EPO Claims (n = 7,187) ≥4 EPO Claims (n = 75,283) USRDS Hemo 1991-1995
Age
under 4524.824.218.618.7
45 to 6443.743.135.336.1
65 to 7420.322.529.427.6
≥7511.210.216.717.6
Female38.242.251.4
Race
white56.650.449.354.8
black36.042.241.339.2
Native American1.11.41.41.5
other6.36.08.14.5
Primary renal diagnosis
diabetes mellitus25.829.831.133.2
hypertension27.028.231.130.1
GN18.817.516.413.9
other28.424.621.422.8
Prior ESRD exposure
<1 yr26.525.723.0
1 to 2 yr15.820.419.6
2 to 5 yr25.326.733.9
≥5 yr32.527.223.5
Comorbid conditions
ASHD26.134.840.4
CVA/TIA16.424.529.2
PVD38.052.961.7
CHF33.247.356.2
cardiac other41.658.066.1
COPD14.920.623.3
cancer16.720.925.3
liver12.520.122.9
gallbladder6.79.110.9
GI15.524.029.1
No. of access procedures
no procedures85.471.867.8
1 to 3 procedures10.419.320.6
≥4 procedures4.28.911.5
No. of transfusions
no blood transfusion95.990.287.7
1 to 2 pints1.84.36.4
≥3 pints2.35.46.0
Length of stay
no hospital stay75.158.254.6
1 to 3 days7.69.911.6
3 to 10 days9.113.716.2
11 to 20 days4.47.99.1
>20 days 3.8 10.3 8.5
  • a EPO, erythropoietin; USRDS, U.S. Renal Data System; GN, glomerulonephritis; ESRD, end-stage renal disease; ASHD, atherosclerotic heart disease; CVA/TIA, cerebrovascular accident/transient ischemic attacks; PVD, peripheral vascular disease; CHF, congestive heart failure; COPD, chronic obstructive pulmonary disease.

  • b All χ2 tests are significant with P value <0.001 among the left three columns.