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Table 1 Behaviors assessed by ABQ as possible markers of abdominal discomfort in individuals with ASD

From: Vocal and motor behaviors as a possible expression of gastrointestinal problems in preschoolers with Autism Spectrum Disorder

VB MB C
Frequent clearing of throat Facial grimacing Sleep disturbances (difficulty getting to sleep, difficulty staying asleep)
Swallowing and/or tics Gritting teeth Increased irritability (exaggerated responses to stimuli)
Screaming Wincing Non-compliance with demands that typically elicit an appropriate response
Sobbing for no reason at all Constant eating/drinking/swallowing  
Sighing and/or whining Mouthing behaviors as chewing on clothes, pica  
Moaning and/or groaning Application of pressure to abdomen  
Delayed echolalia that includes reference to pain or stomach and direct verbalizations about it Tapping behaviors  
  Any unusual posturing  
  Agitation as jumping up and down  
  Unexplained increase in repetitive behaviors  
  Self-injurious behaviors  
  Aggressive behaviors: onset of or increase  
  1. Abbreviations: VB Verbal behaviors, MB Motor behaviors, C Changes in overall state