Table 5.

Results of logistic regression on item level of ADI-R.

Variable (subdomain)	B	Wald	p	Odds ratio
Hand and finger mannerisms (C3)	1.04	8.49	0.004	2.83
Unusual preoccupations (C1)	0.78	7.92	0.005	2.18
Reciprocal conversation (B2)	0.65	7.60	0.006	1.91
Interest in children (A2)	0.63	8.89	0.003	1.88
Group play with peers (A2)	0.60	7.65	0.006	1.83
Constant	−0.88	7.35	0.007	0.42

N = 426 (ASD = 365, MAD = 61). df = 1. Odds ratios >1.00 indicate increasing likelihood of ASD, whereas values <1.00 indicate increasing likelihood of being assigned to MAD. Social Interaction domain, subdomain A2: failure to develop peer relations; communication domain, subdomain B2: relative failure to initiate or sustain conversational interchange; restricted, repetitive, and stereotyped pattern of behavior domain, subdomain C1: encompassing preoccupation or circumscribed pattern of interest; C3: stereotyped and repetitive motor mannerisms; ADI-R: Autism Diagnostic Interview–Revised; ASD: autism spectrum disorder; MAD: mood and anxiety disorder.