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Table 4 Total Number of ER Visits/Hospital Admissions and Hospital Days By Risk Category in Two Years Follow-Up (2005-2006)

From: Use of an electronic administrative database to identify older community dwelling adults at high-risk for hospitalization or emergency department visits: The elders risk assessment index

Score # of admissions (2 yrs) # of hospital days (2 yrs)
  Mean/SD Median/Range Mean/SD Median/Range
-7:-1 0.4 ± 0.8 0(0, 8) 0.6 ± 3.5 0(0, 102)
0:3 0.7 ± 1.2 0(0, 13) 1.4 ± 5.2 0(0, 152)
4:8 1.1 ± 1.6 0(0, 14) 2.4 ± 6.3 0(0, 134)
9:15 1.6 ± 2.2 1(0, 24) 4.1 ± 9.0 0(0, 132)
16 + 2.6 ± 2.9 2(0, 24) 8.0 ± 13.3 4(0, 142)
P-value <. 01 <. 01 <. 01 <. 01