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. Author manuscript; available in PMC: 2013 Apr 1.
Published in final edited form as: Autism Res. 2012 Feb 1;5(2):84–92. doi: 10.1002/aur.236

Table 1.

Characteristics of Study Population (all Males)

Case Status Measure Age Creatinine (g/l) Porphyrins (nmol/gCr)
Penta Copro

Control (NT)
(N=32)
Mean 7.18 1.06 1.21 56.44
Range 2.3-11.7 0.23-2.48 0.22-3.10 10.1-126.4
Std. Dev. (3.02) (0.46) (0.65) (32.42)

Autistic
(N=30)
Mean (p-value)* 6.08 (.09) 0.96 (.36) 1.95 (.02) 89.01 (.004)
Range 3.2-11.3 0.44-1.80 0.50-7.43 18.5-199.6
Std. Dev. (1.96) (0.39) (1.49) (49.48)

PDD-NOS
(N=14)
Mean (p-value)* 6.59 (.51) 0.96 (.48) 1.86 (.13) 66.36 (.32)
Range 2.5-12.4 0.44-1.92 0.39-5.91 16.1-121.5
Std. Dev. (2.64) (0.43) (1.47) (29.29)

Total
(N=44)
Mean 6.64 1.00 1.62 71.12
Range 2.3-12.4 0.23-2.48 0.22-7.43 10.1-199.6
Std. Dev. (2.59) (0.43) (1.24) (41.88)
*

equality of means compared to controls (t-test, equal variance not assumed)