Clinical Correlates and Prevalence of Food Selectivity in Children with Autism Spectrum Disorder.

To examine clinical correlates and prevalence of food selectivity (FS) - i.e., self-restricted diet, reluctance to try new foods - in children with autism spectrum disorder (ASD) ascertained from a general outpatient autism clinic. A multidisciplinary team (pediatric nurse practitioner, psychologist and dietitian) assessed medical and psychosocial histories and dietary habits in 103 children with ASD (mean age= 5.8 + 2.2 years; range 2-10). Parents rated child mealtime behavior on Brief Autism Mealtime Behavior Inventory (BAMBI) and disruptive behavior on Aberrant Behavior Checklist (ABC). Height and weight measurements were collected. Children were classified as FS or no FS based on parent reported intake and mealtime behavior. A 24-hour dietary recall was used to record intake percentages < 80%. Logistic regression and multivariable modeling were used to evaluate clinical correlates with FS. Of 103 children, 45.6% (n=47) were classified as FS; 54.4% (n=56) no FS. After adjusting for potential confounders, the odds of FS increased by 1.91 (95% CI: 1.38, 2.64, p<.001) for every half-SD increase in BAMBI total score and by 1.35 (95% CI: 1.05, 1.74, p=.020) for every half-SD increase in ABC Hyperactivity/Noncompliance. No group differences in anthropometrics or nutritional intake were identified. FS in children with ASD was strongly associated with greater severity of disruptive mealtime and hyperactivity/noncompliance behaviors. FS was not associated with anthropometrics or nutritional intake.

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