Table 3.

Incidence of ARF, defined by change in serum creatinine, at three Boston-area teaching hospitals in 2004 (excluding patients on maintenance hemodialysis, maintenance peritoneal dialysis, and those undergoing kidney transplantation)

BWH(n = 41,800)MGH(n = 41,228)CSEMC(n = 14,677)Combined(n = 97,705)
0.5 mg/dl increase (%)11.214.711.912.9
50% increase (%)13.718.211.515.3
100% increase (%)5.17.04.35.8
Hou criteriab (%)10.514.011.012.0
  • b Change of 0.5, 1.0, and 1.5 mg/dl for nadir serum creatinine ≤1.9, 2.0 to 4.9, and ≥5.0 mg/dl, respectively (6).\