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. 2014 Apr 28;10:14. doi: 10.1186/1744-9081-10-14

Table 2.

ROC-curve of mercury (μg/L), lead (μg/dl), GST (μmol/l) and vitamin E (nmol/L) levels in the autistic groups

Parameters Autistic patients CARS
SRS
Mild to moderate Severe Mild to moderate Severe
Mercury
Area under the curve
0.926
0.961
1.000
0.935
0.997
 
Best cutoff value
6.018
6.018
6.316
6.105
6.346
 
Sensitivity %
84.5%
93.1%
100.0%
86.4%
95.5%
 
Specificity %
93.8%
93.8%
100.0%
96.9%
100.0%
Lead
Area under the curve
0.953
0.917
0.980
0.923
0.980
 
Best cutoff value
5.586
5.590
6.132
6.132
6.321
 
Sensitivity %
89.7%
79.3%
89.3%
72.7%
86.4%
 
Specificity %
87.5%
87.5%
96.9%
96.9%
100.0%
GST
Area under the curve
0.980
0.974
1.000
0.983
1.000
 
Best cutoff value
0.443
0.443
0.320
0.443
0.320
 
Sensitivity %
100.0%
100.0%
100.0%
100.0%
100.0%
 
Specificity %
93.3%
93.3%
100.0%
93.3%
100.0%
Vitamin E
Area under the curve
0.999
1.000
1.000
1.000
1.000
 
Best cutoff value
19.254
18.718
18.089
18.718
17.953
 
Sensitivity %
96.4%
100.0%
100.0%
100.0%
100.0%
  Specificity % 100.0% 100.0% 100.0% 100.0% 100.0%