Table 3 Linear mixed models for activity measures and postural control parameters

Model with egocentric asymmetry as independent variable

Dependent variables

Independent variables

AICc

Egocentric asymmetry

(β -value (SE, 95%CI, p-value))

Time (β-value (SE, 95%CI, p-value))

Instrument

3w

5w

8w

(β-value (SE, 95%CI, p-value))

BBS-s

-0.11

(0.03, [-0.17;-0.06], P < .001)*

-1.11

(0.23, [-1.57;-0.67], P < .001)*

-0.78

(0.21, [-1.21;-0.35], P < .001)*

-0.24

(0.22, [-0.67;0.20], P = .280)

385.85

COP_vel-ML

-0.29

(0.18, [-0.65;0.08], P = .119)

3.37

(0.78, [1.81;4.92], P < .001)*

1.42

(0.75, [-0.06;2.91], P = .061)

0.84

(0.73, [-0.62;2.30], P = .255)

9.29

(2.06, [5.07;13.51], P < .001)*

576.16

COP_vel-AP

-0.41

(0.17, [-0.75;-0.07], P = .018)*

2.37

(0.72, [0.93;3.81], P = .002)*

1.17

(0.69, [-0.21;2.55], P = .095)

0.44

(0.68, [-0.92;1.79], P = .523)

12.32

(2.33, [7.57;17.08], P < .001)*

572.34

WBA

-0.14

(0.26, [-0.66;0.38], P = .585)

-0.68

(1.12, [-2.91;1.55], P = .545)

1.02

(1.07, [-1.11;3.15], P = .344)

0.06

(1.05, [-2.03;2.15], P = .953)

-3.79

(3.22, [-10.37;2.80], P = .249)

656.96

Model with allocentric asymmetry as independent variable

Dependent variables

Independent variables

AICc

Allocentric asymmetry

β -value (SE, 95%CI, p-value)

Time (β-value (SE, 95%CI, p-value))

Instrument

3w

5w

8w

(β-value (SE, 95%CI, p-value))

BBS-s

-0.11

(0.03, [-0.17;-0.06], P < .001)*

-1.11

(0.23, [-1.57;-0.67], P < .001)*

-0.78

(0.21, [-1.21;-0.35], P < .001)*

-0.24

(0.22, [-0.67;0.20], P = .280)

385.85

COP_vel-ML

0.24

(0.30, [-0.34;0.83], P = .413)

3.08

(0.77, [1.55;4.61], P < .001)*

1.33

(0.76, [-0.19;2.85], P = .085)

0.54

(0.72, [-0.89;1.97], P = .456)*

9.64

(2.04, [5.48;13.80], P < .001)*

578.00

COP_vel-AP

0.30

(0.28, [-0.26;0.86], P = .290)

1.95

(0.73, [0.50;3.40], P = .009)*

1.01

(0.72, [-0.42;2.45], P = .163)

-0.00

(0.68, [-1.35;1.35], P = .998)

12.80

(2.28, [8.13;17.46], P < .001)*

577.04

WBA

-0.29

(0.41, [-1.11;0.54], P = .487)

-0.94

(1.07, [-3.08;1.20], P = .382)

0.78

(1.06, [-1.34;2.90], P = .464)

-0.12

(1.00, [-2.12;1.87], P = .902)

3.83

(3.25, [-10.47;2.81], P = .248)

656.76