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

Objectives: To 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.

Methods: Eighty-six girls (13.