A comprehensive four-year study conducted by Satakunnan ammattikorkeakoulu focused on improving hygiene in daycare centers in Ulvila, Finland, through the implementation of various upgrades such as new coatings, touch-free taps, and portable air purifiers. Funded in part by the Ministry of Education and Culture, the research aimed to tackle the issue of illness-related absences among both staff and children in daycare settings. The findings revealed a noteworthy reduction in illness rates, particularly emphasizing the effectiveness of the hygiene upgrades.

According to the study's results, the absence rates among staff in two preschool groups of children aged 3 to 5 years decreased by nearly 20%, and the children's absences dropped by 12% when compared to control groups. Päivi Kankaanpää, the director of the Ulvila daycare center, expressed that the reduction in absences had a positive impact on the daily operations of the daycare. This aligns with similar studies conducted in Helsinki daycare centers, which also indicated favorable outcomes related to improved hygiene practices.

Furthermore, the research explored the implications of enhanced hygiene in elderly care, noting a different outcome in that context, highlighting the need for further investigation into how hygiene improvements can affect various demographics and settings. This research signals the importance of hygienic practices not just for children but also for broader public health concerns, suggesting potential policy implications and the need for quality standards in educational and care settings.