Table 3.

Comparison of patients with and without AKI

ParameterAKI (n = 114)No AKI (n = 9685)P
n% or Mean ± SDn% or Mean ± SD
OSP purgative8372.8634965.60.113
Age (yr)68.7 ± 10.862.9 ± 9.4<0.001
Black race2118.4184319.01.000
White race6657.9523954.10.450
Male gender5548.2525354.20.219
Diabetes3934.2232924.00.015
Hypertension9482.5618363.8<0.001
ASCVD2521.9134613.90.020
CHF1210.53273.40.001
CKDa1210.59339.60.749
Proteinuria108.85095.30.134
NSAID use2824.6218822.60.652
ACEI or ARB use4943.0283629.30.003
Diuretic use4640.4235324.3<0.001
Contrast exposure1815.897910.10.059
Colorectal cancer21.819221.000
Accrual period (d)938.5 ± 461.9944.2 ± 447.90.892
No. of physician visits15.0 ± 20.811.1 ± 16.70.092
Preprocedure creatinine (mg/dl)0.95 ± 0.351.02 ± 0.300.005
Precreatinine interval (d)76.4 ± 68.087.3 ± 77.30.092
Preprocedure eGFR (ml/min per 1.73 m2)84.5 ± 25.186.0 ± 21.60.576
Postprocedure creatinine (mg/dl)1.71 ± 1.001.02 ± 0.32<0.001
Postcreatinine interval (d)92.0 ± 85.9126.4 ± 101.8<0.001
Follow-up creatinine (mg/dl)1.38 ± 0.601.07 ± 0.51<0.001
Follow-up creatinine interval (d)269.4 ± 280.4283.0 ± 263.30.611
  • a Defined as MDRD eGFR of <60 ml/min per 1.73 m2.