“…The duration of rehabilitation interventions varied: 1) four weeks (1 study) [ 22 ]; 2) eight weeks (4 studies) [ 34 – 36 , 38 , 40 ]; and 3) 12 weeks (4 studies) [ 32 , 33 , 37 , 39 ]; and 4) variable duration (1 study) [ 41 ]. These 10 studies investigated rehabilitation interventions: 1) as an addition to active comparison interventions where the attributable effect of the comparison interventions can be isolated (4 studies) [ 32 , 33 , 37 , 39 ]; 2) compared to no treatment (3 studies) [ 34 – 36 , 38 ]; 3) compared to sham (1 study) [ 22 ]; and 4) compared to other active interventions (2 studies) [ 40 , 41 ], respectively. Outcomes included LBP intensity (9 studies) [ 22 , 32 – 40 ], function (5 studies) [ 22 , 32 , 33 , 38 , 41 ], quality of life (2 studies) [ 32 , 33 ], improvement (2 studies) [ 22 , 33 ], satisfaction (1 study) [ 33 ], wellbeing (1 study) [ 34 ], feelings about school and life (1 study) [ 34 ], absence from school or physical activity (1 study) [ 35 ], and health resource utilization (1 study) [ 22 ].…”