The longer patients stay in a hospital, the more likely it is they will have an adverse reaction to a medication or develop an infection or pressure ulcer, researchers reported in a study accepted for publication in the journal Medical Care. Lead author Katharina Hauck of Imperial College London said infections mainly were due to nonsterile equipment, poor hygiene or catheter issues. The study suggested checklists, electronic records, improved hygiene and more staff training could help prevent these problems.

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