. Author manuscript; available in PMC: 2013 Dec 1.

Published in final edited form as: Infant Behav Dev. 2012 Sep 13;35(4):838–846. doi: 10.1016/j.infbeh.2012.07.019

Table 1.

Mean (SD) of AIMS raw scores and percentile ranks of infant siblings of children with ASDs (AU sibs) and low risk (LR) infants at 3 (3m) and 6 months (6m).

Age		Prone scores	Supine scores	Sit scores	Total scores	Percentile rank for Total Scores
3m	LR n=18	4.95 (1.75)	4.78 (1.38)	2.43 (1.27)	14.22 (3.93)	38.9 (26.2)
3m	AU sibs n=18	3.33 (1.46)^*	3.89 (1.13)^*	1.44 (0.86)^*	10.67 (2.45)^*	21.4 (16.4)^*
6m	LR n=24	11.46 (2.32)	7.97 (0.95)	7.06 (1.69)	30.09 (4.28)	52.21 (20.35)
6m	AU sibs n=24	9.66 (3.97)^*	7.46 (0.98)^*	6.25 (2.58)	26.58 (6.83)^*	34.25 (29.64)^*

p<0.05