Table 4. Stepwise logistic regression results of the occurrence of ADEs.

Variables	B	SE	Wald	P	Exp(B)	95%CI
Sex (Female)	0.293	0.156	3.518	0.061	1.340	0.987–1.820
Age	-0.046	0.010	21.184	0.000	0.955	0.937–0.974
Length of stay	0.043	0.009	24.595	0.000	1.044	1.027–1.062
Intensive care units	0.647	0.378	2.934	0.087	1.910	0.911–4.006
Number of admissions in the previous 1-year	0.067	0.018	13.815	0.000	1.069	1.032–1.107
Surgery performed	-1.252	0.205	37.301	0.000	0.286	0.191–0.427
Method of admission (On foot)	-0.397	0.206	3.703	0.054	0.673	0.449–1.007
Number of medications per patient	0.047	0.015	9.787	0.002	1.048	1.018–1.080
Constant	0.443	0.683	0.420	0.517	1.557