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Table 2 Means, standard deviations, ranges, and sample sizes of cross-sectional data from the MSEL Fine Motor scale, by age and group

From: Development of fine motor skills is associated with expressive language outcomes in infants at high and low risk for autism spectrum disorder

Age HRA+ HRA− LRC p (3-group) d (HRA+ vs. HRA) d (HRA+ vs. LRC) d (HRA− vs. LRC)
6 months 7.86 (1.21) 6–11
n = 22
8.42 (1.28) 6–12
n = 50
8.13 (1.27) 6–12
n = 61
0.20 − 0.44 − 0.22 0.23
12 months 16.5 (2.08) 12–21
n = 30
17.27 (1.80) 12–20
n = 67
16.58 (1.63) 12–20
n = 67
0.04 − 0.41 − 0.05 0.40
18 months 20.36 (1.66) 16–24
n = 25
21.03 (1.64) 17–24
n = 67
20.96 (1.54) 19–25
n = 67
0.19 −0.41 − 0.38 0.04
24 months 24.12 (2.42) 19–28
n = 25
25.13 (2.12) 20–29
n = 61
25.56 (2.59) 20–32
n = 63
0.04 −0.46 − 0.57 −0.18