"Latrogenic effects, or damage caused by medical care and medication, can lead to loss of functional autonomy and decline in the physical abilities of the elderly," the study emphasises.

The study, conducted as part of the "STOP-IATRO" project, finds that these health complications, not explained by the clinical condition, affect a significant share of the senior population.

Researcher Maria Teresa Herdeiro warns that older adults may lose abilities during hospitalisation, with a direct impact on state costs, and advocates integrating WHO guidelines into the National Health Service's protocols to prevent iatrogenic effects.

Based on surveys of professionals at the Local Health Unit of the Aveiro Region (ULS RA), the research found that 84 percent of respondents do not follow international recommendations to prevent loss of autonomy in a hospital setting.

“The data shows that 82 percent of professionals do not use functional assessment scales to monitor the actual condition of hospitalised patients,” states a press release about the “STOP-IATRO” project.

Portugal has the second-highest ageing index in the European Union, which, according to the researcher, exacerbates the risks associated with polypharmacy and complex treatments.

The surveys also revealed that approximately 41 percent of participants acknowledge that most adverse events related to medication could be avoided with effective prevention.

The study included 64 healthcare professionals from the Aveiro region, 92 percent of whom expressed interest in receiving specific training.

According to the press release, "the findings of STOP-IATRO have already led to workshops for 80 professionals, and literacy initiatives are planned for the general public."