Table 2.
Clinical biochemistry baseline value of participants with autism versus controls
| Variables | Reference normal value | Mean±SD | P | |
|---|---|---|---|---|
| Autism (n=308) | Controls (n=308) | |||
| Vitamin D (ng/ml) | 30-80 | 18.79±8.35 | 22.18±9.00 | 0.004 |
| Serum iron (ug/dL) | 37-158 | 74.13±21.61 | 87.59±23.36 | 0.003 |
| Ferritin (ng/ml) | 15-150 | 36.57±5.12 | 38.49±5.73 | <0.001 |
| Hemoglobin (g/dL) | 10.5-12.7 | 12.03±2.13 | 12.86±2.02 | <0.001 |
| Magnesium (mmol/L) | 0.65-1.05 | 0.826±0.07 | 0.884±0.06 | <0.001 |
| Potassium (mmol/L) | 3.4-4.7 | 4.252±0.50 | 4.575±0.55 | <0.001 |
| Calcium (mmol/L) | 2.10-2.5 | 2.09±0.12 | 2.39±0.14 | <0.001 |
| Phosphorous (mmol/L) | 0.4-1.3 | 1.362±0.31 | 1.553±0.28 | <0.001 |
| Glucose (mmol/L) | 4-6 | 4.65±0.4 | 4.35±0.9 | <0.001 |
| Alkaline phosphate (U/L) | 149-401 | 268.36±92.6 | 215.22±84.6 | <0.001 |
| Hematocrit | 36%-46% | 36.32±2.81 | 39.07±2.66 | <0.001 |
| White blood cells (×103/ul) | 5.3-11.5 | 9.74±3.56 | 10.93±3.66 | <0.001 |
| MCV (fL) | 80-96 | 77.23±5.92 | 85.24±6.53 | <0.001 |
MCV=Mean corpuscular volume, SD=Standard deviation