TABLE 2.

Differences in body sway parameters between asymptomatic patients and controls.

Eyes	Feet	Body sway parameter	Control (n = 16)	Asymptomatic (n = 16)	p-value	Effect size (r)
Closed	Apart	Amplitude – total	3.81(3.29−4.53)	4.15(3.08−6.83)	0.353	0.18
		Amplitude – AP	2.53(1.84−3.77)	4.29(2.32−5.68)	0.061	0.33
		Amplitude – ML	0.99(0.75−1.26)	1.43(1.14−1.64)	0.056	0.34
		Path – total	233.0(198.9−376.4)	302.1(253.8−442.0)	0.128	0.27
		Path – AP	188.9(149.5−290.7)	242.7(166.5−367.9)	0.361	0.17
		Path – ML	122.7 (45.7)	145.0 (52.3)	0.210	0.23
	Togethera	Amplitude – total	7.64(6.24−8.35)	9.95(7.70−13.34)	0.008	0.46
		Amplitude – AP	4.92 (2.41)	7.93 (4.73)	0.030	0.40
		Amplitude – ML	6.49 (2.63)	10.15 (6.24)	0.043	0.38
		Path – total	512.7(382.1−673.6)	606.8(462.5−863.0)	0.184	0.24
		Path – AP	319.0 (123.2)	440.9 (247.4)	0.088	0.31
		Path – ML	352.9(258.8−401.2)	386.3(308.3−577.7)	0.341	0.17
Open	Apart	Amplitude – total	2.60(2.29−3.12)	3.55(2.43−4.29)	0.110	0.29
		Amplitude – AP	1.39 (0.46)	1.79 (0.81)	0.096	0.30
		Amplitude – ML	0.64(0.51−0.75)	0.85(0.66−1.10)	0.080	0.31
		Path – total	161.9(141.2−212.7)	200.7(162.5−250.7)	0.184	0.24
		Path – AP	122.5(95.6−157.6)	145.2(118.2−172.9)	0.381	0.16
		Path – ML	87.9(76.6−108.0)	100.0(86.2−135.8)	0.239	0.21
	Together	Amplitude – total	5.43(4.91−6.87)	6.17(4.92−8.97)	0.171	0.25
		Amplitude – AP	2.09 (0.75)	2.74 (1.68)	0.178	0.25
		Amplitude – ML	2.78 (1.05)	3.86 (2.55)	0.133	0.28
		Path – total	284.1 (61.5)	329.6 (128.7)	0.215	0.23
		Path – AP	174.7 (54.3)	197.2 (86.8)	0.387	0.16
		Path – ML	185.1 (38.1)	217.1 (89.9)	0.204	0.23

Body sway amplitude (mm) and body sway path (mm) values are summarized as median (interquartile range) or mean (standard deviation) depending on the distribution of data. Unpaired T-test (normally distributed data) or Mann-Whitney U-test (non-normally distributed data) was used to compare groups. Significant differences are displayed in bold text.