Preventive physiotherapy interventions for back care in children and adolescents: a meta-analysis.

BMC Musculoskelet Disord · 2012 · PMC3488493 · PMID 22908965

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a slight trendno p-value reported

Anyone of them reached a statistically significant relationship with the effect sizes, although the negative value of their slopes ( b j = −0.662 and −0.033, respectively) indicated a slight trend to show lower effect sizes as the mean age and the percentage of males increased.

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