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Table 3 Results of the weighted ANOVAs for the trunk flexion endurance measures in the posttest, taking qualitative moderator variables as independent variables

From: Effectiveness of physiotherapy interventions for back care and the prevention of non-specific low back pain in children and adolescents: a systematic review and meta-analysis

Variable k d+ 95% CI ANOVA results
LL LU
Type of treatment:
  Physical exercise (PE) 4 0.536 -0.471 1.543  F(1,5) = 0.211, p = .665
  PE + Physical activity (PA) 3 0.811 -0.350 1.972
Age:
  Adolescent 4 1.140 0.505 1.774  F(1,5) = 9.239, p = .029
  Children 3 0.024 -0.675 0.722
Progression:
  Yes 5 0.992 0.396 2.654  F(1,5) = 7.642, p = .035
  No 2 -0.169 -1.069 1.588
Risk of bias:
  High 1 0.722 -1.353 2.797  F(1,5) = 0.008, p = .932
  Some concerns 6 0.644 -0.193 1.480
  1. k number of studies, d+mean coefficient alpha, LL and LU lower and upper 95% confidence limits for d+. F  Knapp-Hartung’s statistic for testing the significance of the moderator variable