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Table 5 Sub-component analysis results

From: The reach-to-grasp movement in infants later diagnosed with autism spectrum disorder: a high-risk sibling cohort study

Component

Sub-component

Group

Age

Sex

Interaction effects

Post hoc groupO

F

p

F

p

F

p

Orient

A. Engage

.63

.53

5.33

.001*

2.27

.13

No

NA

B. Disengage

3.38

.04*

18.65

.001*

1.12

.29

No

a < b, c

Lift

A. Elbow flex

4.61

.01*

44.56

.001*

.62

.43

No

a < c

B. Digits flex

4.33

.02*

23.79

.001*

2.57

.11

No

a < c

C. Supinate

3.77

.03*

34.01

.001*

6.53

.01*^

No

b < c

D. Tips to midline

3.91

.02*

24.12

.001*

2.88

.09

No

a < c

Advance

A. Hand path

.86

.43

37.47

.001*

1.76

.19

No

NA

B. Hand to target

2.53

.08

56.89

.001*

.001

.98

Yes1

NA

C. Trunk lean

1.58

.21

1.04

.40

1.41

.24

No

NA

Pronation

A. Digits open

4.02

.02*

15.87

.001*

8.71

.004*^

No

a < c

B. Knuckle

6.57

.002*

43.81

.001*

9.24

.003*^

No

c > a, b

C. Elbow extend

3.39

.04*

4.17

.001*

5.65

.019*^

Yes1234

b < c

Grasp

A. Appropriate grasp

.13

.88

13.03

.001*

.11

.75

Yes1

NA

B. Wrist extenda

.60

.55

10.51

.001*

2.95

.09

No

NA

  1. a LR control; b HR-N, c HR-ASD, NA not applicable; *Significantly different at p < .05, OBenjamini and Hochberg corrected p value
  2. 1Age × sex interaction
  3. 2Group × sex interaction
  4. 3Age × sex interaction
  5. 4Group × age × sex interaction
  6. ^Boys < girls