Table 3.

Predictors of familial risk for ASD at age 6 months.

Predictor	Odds ratio	z-Statistic	p-Value
lAge	0.40	-1.78	0.076
lMSEL Gross Motor	1.18	0.83	0.407
lMSEL Fine Motor	1.62	2.32	0.020
lAnticipation 0–1	5.78	2.68	0.007
lAnticipation 0–2	3.32	1.93	0.053
lAnticipation 0–3	4.57	2.28	0.023

Positive odds indicate that an increase in the predictor variable (e.g., going from an anticipation score of 0–1) results in an increase in the odds of a participant belonging to the low risk group (versus belonging to the high risk group). The most common score was used as the reference level (0).