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Table 3 Total Number and Relative Risk of Total Emergency Room Visit and Hospital Stay, Emergency Room Visit Alone and Hospital Stay Alone 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 Total ER/Hospitalizations N (%) Mean (SD) Median (Range) Relative Risk of ER Visit or Hospital Stay OR (95% CI) Relative Risk of ER Visit OR (95% CI) Relative Risk of Hospital Visit OR (95%CI)
-7:-1 518 (25) 0.4 (0.8) 0 (0,8) 0.0 (Reference) 0.0 (Reference) 0.0 (Reference)
0:3 1549 (38) 0.7 (1.1) 0 (0,13) 1.85 (1.6-2.1) 1.7 (1.5-2.0) 1.9 (1.6-2.2)
4:8 1507 (48) 1.1 (1.6) 0 (0,14) 2.9 (2.5-3.2) 2.3 (2.0-2.6) 3.4 (2.9-3.9)
9:15 1314 (62) 1.6 (2.2) 1 (0,24) 4.9 (4.3-5.6) 3.4 (3.0-4.0) 6.0 (5.1-7.0)
16 + 897 (76) 2.6 (2.9) 2 (0,24) 9.5 (8.1-11.2) 4.6 (3.9-5.4) 13.3 (11.2-15.9)
P value <. 01 <. 01 <. 01