Socio-health Impact of a Multifactorial Program of Hand Hygiene on Respiratory and Gastrointestinal Infections in Children Attending in Day-care Centres

A randomized, controlled, and open study of 3 cohorts of families with children attending to DCCs, between the ages of 0 and 3, attending 25 DCC (911 children) in Almeria (Spain) was designed. This study was carried out over the course of 8 months (November 2013 to June 2014). A group of DCCs/families will perform hand hygiene with soap and water (SWG), another group with hand sanitizer gel (HSG) and a control group (CG) practiced usual handwashing techniques.

Intervention: The families and DCCs staff randomly assigned to HSG and SWG attended handwashing workshops of 2-hour duration. These took place one month before the beginning of the study. Workshop content included education about the most frequent infections in DCCs, their transmission, prevention, treatment, instructions on how and when hands should be washed, use of hand sanitizers and possible side effects in the HSG. Every 2 weeks, the research assistant and the teachers (staff) performed activities such as stories, songs and posters in the classroom, which are linked to hand hygiene and infection's transmission. In the Children/families in the HSG and SWG were instructed by the researchers, teachers, and research assistant to maintain the usual handwashing procedure after going to the toilet and when their hands were visibly dirty. They also were told to use the hand sanitizer and handwashing with water and liquid soap correctly in the following circumstances: after coming into the classroom; before and after lunch; after playing outside; when they went home; and after coughing; sneezing; or blowing their noses; after diapering.

Parents of the three groups completed the survey on sociodemographic characteristics and questions about hand hygiene referred to when and how their children wash their hands. Progenitors of children whit episodes due to RTIs and gastroenteritis collected the symptoms and handed in the completed form to the teacher. A research assistant collected the absence sheets of the participating classes weekly, called the parents of absent children to enquire about the cause of their absence, visited the classrooms and collaborated with the teachers in activities related to the hygiene of hands.