Introduction: Whereas adults with Low Back Pain (LBP) who seek medical attention show a decrease on HRQoL, there is little information if patients are adolescents with LBP. The aim of our study is to assess the impact on HRQoL of adolescents referred to a hospital of geographical reference due to non-specific LBP (NS-LBP).

Methods: All consecutive adolescents with NS-LBP (patients) referred to the hospital between January06 and October07 completed a self-administered questionnaire including a generic quality of life (KIDSCREEN-52) and two LBP-specific (Roland-Morris, Hannover) instruments. Comparisons were performed among patients and two groups of schoolchildren (one of them with self reporting LBP and another one without) selected from a representative sample of 1470 schoolchildren from Barcelona and Friburg, paired by sex, age and country. Comparisons were made using t-tests and effect size (ES) estimation.

Results: Seventy-six patients (mean age 14.1y, 59.2% girls) completed the questionnaire and were compared with 304 controls (152 reporting LBP and 152 without LBP). Patients reported significantly higher frequency (p=0.014), duration (p=0.009) and intensity (p< 0.001) of pain than symptomatic schoolchildren. Perceived functional capacity (Roland Morris 5.5 vs 4.3, p=0.023, and Hanover 4.5 vs 3.5, p=0.032) was also worse, even tough the overall disability was not high in 65% of them. However, HRQoL (KIDSCREEN) was better in almost all dimensions in patients than in symptomatic schoolchildren.

Discussion: Overall adolescent LBP is associated to low disability, and scarce impact on QoL. Adolescents with LBP referred to the hospital have worse clinical and functional picture but better HRQoL than symptomatic peers from the general population using the Kidscreen instrument.