Appropriateness of drug use -LSB- measured by the Screening Tool of Older Persons Prescriptions ( STOPP ) and Screening Tool to Alert Doctors to Right Treatment ( START ) criteria -RSB- , incidence of selected geriatric syndromes ( falls , delirium ) and health resource utilization ( visits to physicians and nursing homes , visits to the emergency room , days of hospitalization ) were recorded for @ months before the intervention started and @ months after the intervention finished .