OBJECTIVE: To verify the prevalence of trunk postural deviations (lumbar hyperlordosis, dorsal kyphosis, and scoliosis) in scholars aged eight to 15 years-old from the city schools of Caxias do Sul, Southern Brazil. METHODS: A total of 864 students were evaluated in a cross-sectional study. The variables studied were trunk postural rating by visual inspection; body mass index (weight and height); backpack weight on digital scale and how students used to carry the school supplies (questionnaire); gender; and age. Descriptive and bivariate statistics (prevalence ratio and confidence interval) were applied. RESULTS: The prevalence of postural deviations was 16.6% for dorsal kyphosis, 27.9% for lumbar hyperlordosis, and 33.2% for scoliosis. The ages of eight to 12 years-old were a risk factor for lumbar hyperlordosis, tripling the chances of this outcome (3.41 prevalence ratio). The same age was a protective factor for dorsal kyphosis. Scholars of this age group presented 52% less chances for dorsal kyphosis. The female gender had 47% less chances of having dorsal kyphosis than males. Scoliotic attitude did not show significant association with the independent variables. CONCLUSIONS: These findings confirm the need for interventions by health and education professionals, seeking to correct bad postural habits, which could in the future cause irreversible damages.
school health; adolescent health; spine; posture
