Table 3 Log¹⁰ values in postural sway for the WAD and control groups at baseline and at three-month follow-up, and change score for the WAD group.

	N	WAD group Baseline Mean (95% CI)	N	Control group (CG) Baseline Mean (95% CI)	Between group differences, WAD vs. CG baseline Mean (95% CI)	P value	ES	N	WAD group three months Mean (95% CI)	Between group differences, WAD three months vs. CG baseline Mean (95% CI)	P value	ES	Change score WAD, baseline to three months Mean (95% CI)	P value	ES
Pathway single leg, cm	31	1.58 (1.51 to 1.65)	31	1.49 (1.41 to 1.56)	0.7 (-0.02 to 0.17)	0.131	.39	22	1.48 (1.40 to 1.56)	-0.01 (-0.11 to 0.10)	0.927	.03	-0.09 (-0.19 to -0.01)	0.037	.39
Pathway double stance, cm	31	1.37 (1.30 to 1.44)	31	1.23 (1.19 to 1.28)	0.12 (0.04 to 0.20)	0.003	.78	23	1.26 (1.20 to 1.32)	0.05 (-0.03 to 0.13)	0.238	.35	-0.09 (-0.17 to -0.01)	0.029	.32
Ellipse area single leg, cm2	31	0.33 (0.23 to 0.44)	31	0.29 (0.19 to 0.39)	0.01 (-0.12 to 0.14)	0.866	.04	22	0.30 (0.18 to 0.42)	0.01 (-0.14 to 0.15)	0.942	.02	-0.03 (-0.17 to 0.10)	0.593	.03
Ellipse area double stance, cm2	31	0.14 (0.08 to 0.20)	31	0.06 (0.04 to 0.08)	0.07 (0.02 to 0.13)	0.006	.73	23	0.06 (0.04 to 0.08)	0.02 (-0.01 to 0.05)	0.114	.45	-0.06 (-0.12 to 0.01)	0.057	.42

Mean (95% CI): mean value (95% confidence Interval).
WAD: whiplash-associated disorders; CG: control group.
Between-group differences WAD three months vs. CG baseline: the WAD group’s three-month values were compared to the control group’s baseline values.
Between-group differences baseline and three months: positive values indicate higher value in the WAD group.
Within-group differences baseline to three months: negative values indicate decreased pathway and ellipse area at three-month follow-up in the WAD group.

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