Francine C Dias, Sabine N Boilesen, Soraia Tahan, Lígia Cfl Melli, Mauro B Morais
Prevalence of voluntary dehydration according to urine osmolarity in elementary school students in the metropolitan region of São Paulo, Brazil
Clinics (Sao Paulo, Brazil)
reunion island french overseas department located southern hemisphere close capricorn tropic island multicultural multiethnic population 860 000 inhabitants quarter high risk developing skin cancer due intense ultraviolet radiation melanoma responsible majority skin cancer deaths early prevention melanoma based sun protection childhood french regulations adapted environmental conditions tropical regionthe main objective study evaluate effectiveness three sun protection programs conducted reunionese primary schools pupil knowledge questionnaire presolre interventional openlabel clusterrandomised controlled trial four parallel arms conducted throughout 20222023 reunion island trial design assumes escalation interventional effect using first control arm without proposed intervention arm 1 second arm whose classes encouraged use validated educational programme living sun lws arm 2 third arm whose classes encouraged use lws combined mission soleil runions sun protection awareness programme arm 3 fourth arm benefiting intervention similar arm 3 combined distribution hats sunglasses sun creams arm 4 1780 pupils 18 classes 20 pupils average included randomisation applies classes pupils defined clusters primary outcome based proportion correct answers knowledge questions awareness programme compared four arms using linear mixed model random intercept study obtained ethics approval 2022 id 2022a0035043 results published peerreviewed journals nct05367180