Risk factors for ADRs in the two study cohorts (results of the multivariable regression analysis).†*

*full models were adjusted by possible confounding factors (age, gender, number of diagnosis, length of stay, number of drugs prescribed, and diseases.**D = Diseases of the blood, the blood-forming organs and certain immune deficiencies;***Q = Congenital malformations, deformations and chromosomal abnormalities;****J = Respiratory diseases.†Risk factors are presented as adjusted odds rations (ORs) with 95% confidence intervals.††NA = Not applicable.