Table 4.

Vitamin D levels in ASD patients before and after vitamin D₃ supplementation.

Group	Pre-intervention	Intervention	Post-intervention (3 months)
A	Stereotypy was assessed	Participants were instructed Perceptual-motor Exercises for 36 sessions	Stereotypy was assessed
B	Stereotypy was assessed	Vitamin D3 supplementation (300 IU/kg/ day not to exceed 5,000 IU/day)	Stereotypy was assessed
C	Stereotypy was assessed	Participants were instructed Perceptual-motor Exercises for 36 sessions + Vitamin D3 supplementation (300 IU/kg/ day not to exceed 5,000 IU/day)	Stereotypy was assessed
D	Stereotypy was assessed	received placebos (matching placebo drops with the same taste and color of vitamin D3)	Stereotypy was assessed

Abbreviations: Group A: perceptual-motor exercises; Group B: Vitamin D₃ supplementation; Group C: perceptual-motor exercises and Vitamin D₃ supplementation; Group D: control