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Table 8 Summary of meta-analysis statistics for selected COP parameters, 95% confidence interval (CI), heterogeneity assessed with Cochran’s Q and Higgin’s I2

From: Does postural stability differ between adolescents with idiopathic scoliosis and typically developed? A systematic literature review and meta-analysis

COP parameters Cohen’s d pooled effect size (95% CI) Cochran’s Q Higgin’s I2% Studies (n = 9)
Sway area 0.65
(0.49–0.63) Medium
5.93 15.71 6
MLP1 0.15
(0.08–0.22) No difference
1.00 6.66 2
MLP2 0.14
(0.08–0.19) No difference
1.48 0.00 3
MLR 0.94
(0.83–1.04) Large
4.84 0.00 6
APP1 0.43
(0.31–0.54) Small
1.00 4.42 2
APP2 0.85
(0.72–0.97) Large
2.04 1.74 3
APR 0.98
(0.87–1.09) Large
6.35 21.30 6
  1. COP parameters: Sway area, Mediolateral position 1 (MLP1), Mediolateral position 2 (MLP2), Mediolateral range (MLR), Anteroposterior position (APP1), Anteroposterior position 2 (APP2) and Anteroposterior range (APR). Cohen’s d pooled effect size difference defined as small d = 0.2, medium d = 0.5 and large d = 0.8