HIGHLIGHTS
- who: Laura Bitto Urbanova from the We used data from the Health Behaviour in School-aged Children (HBSC) study conducted in , in SlovakiaTo obtain a representative sample, a two-step sampling procedure was used. First, larger and smaller schools located in rural as well as in urban areas from all regions of Slovakia were randomly selected from a list of all eligible schools in Slovakia and asked to participate in the study. The school response rate (RR) was, .9%. Second, we obtained data from , adolescents from , to , years old (RR=60.0% have published the research work . . .
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