The Impact of Teacher-led School Based Hygiene Campaign on Handwashing Practices and Prevention of Diarrhoea, Undernutrition and Pneumonia Among School Children in Nigeria.

This research project will be conducted as a school cluster-randomized study with 50 randomly selected low-cost private primary schools in the Lagos region. The expected number of schools included is 25 intervention and 25 control schools (schools that have not received the intervention but that are similar enough to the intervention schools to facilitate comparison). Quantitative data will be collected on the implementation and impact of the intervention, and qualitative data will be collected to explore teacher perceptions of best WASH practices. The intervention WASHED-UP (Water, Sanitation and Hygiene Education Against Diarrhoea, Undernutrition and Pneumonia) will be implemented as a 2-week health awareness campaign that will train children and teachers to deliver the program on hygiene promotion in schools. Intervention components include the presentation of interactive stories, games and songs, nutrition education, participatory food demonstration classes using food models, the use of animated characters representing occasions for handwashing with soap, practical and visual demonstrations to communicate the presence of germs and handwashing with soap removes them in comparison to only water, the use of daily diaries by students to record their handwashing behaviour and making a public commitment to handwashing with soap as a club. Digital surveys and implementation checklists will be used to collect the impact (survey) and implementation data, respectively and audio recordings of focus groups will be used to collect data related to stakeholder perceptions of the WASHED-UP program. For school absence, data are planned to be obtained from paper-based school records, including registers and sick-bay records. Approximately 3500 children will be recruited for data collection which will involve administering questions on socio-demographics, illness, reasons for school absence, disease history, sanitation behaviour at home and school and attendance at WASH clubs. At the end of the study all control schools will receive the intervention subsequently.

Data will be collected in three phases:

• Phase 1: February to March 2024 and will consist of a baseline survey.
• Phase 2: May to June 2024 and will consist of an implementation phase in the form of the intervention in the randomly selected 25 primary schools in Lagos.
• Phase 3: September to November 2024 and will consist of three months of follow-up post-implementation and comparison to control schools. Data will be collated using the Kobo Toolbox survey tool and analyzed with Statistical Package for Social Sciences (SPSS).