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Table 2 Serum vitamin D level and exposure to direct sun in two groups

From: Evaluation of serum 25-Hydroxy vitamin D levels in children with autism Spectrum disorder

Variable ASD Mean (SD) Healthy children Mean (SD) P-Value
serum 25-hydroxyvitamine D level ng/mg 9.03 (4.14) 15.25 (7.89) < 0.001
Time of exposure to sun 27.42 (33.14) 33.06 (42.94) 0.56
  ASD N (%) Healthy children N (%)  
Deficient of Vitamin D (≤20 ng/ml) 30 (96.77) 22 (70.97) 0.006
Insufficient of Vitamin D (21–29 ng/ml) 1 (3.22) 9 (29.03)