Quality of life, school backpack weight, and nonspecific low back pain in children and adolescents

AbstractObjectivesTo describe the degree of disability, anthropometric variables, quality of life (QoL), and school backpack weight in boys and girls aged 11-17 years. The differences in QoL between those who did or did not report low back pain (LBP) were also analyzed.MethodsEighty-six girls (13.9±1.9 years of age) and 63 boys (13.7±1.7 years of age) participated. LBP was assessed by questionnaire, and disability using the Roland-Morris Disability Questionnaire. QoL was assessed by the Pediatric Quality of Life Inventory (PedsQL). Multivariate analyses of variance and covariance were used to assess differences between groups.ResultsGirls reported higher disability than boys (p=0.01), and lower QoL in the domains of physical (p<0.001) and emotional functioning (p<0.01), psychosocial health (p=0.02) and physical health summary score (p<0.001), and on the total PedsQL score (p<0.01). School backpack weight was similar in both genders (p=0.61) and in participants with and without LBP (p=0.15). After adjustments, participants with LBP reported lower physical functioning (p<0.01), influencing lower physical health summary score (p