Table 8 Effect of many factors on the Overall Benefit score (using the NSTEA scale of 0–4). Significant results are highlighted in bold

Gender

n.s

 Male

2.27 ± 1.2

 Female

2.17 ± 1.2

Age

R =—.0.01 (n.s.)

 1–5 years

2.26

 6–10 years

2.10

 11–15 years

2.38

 16–20 years

2.58

 21–25 years

2.0

 25–30 years

2.50

 31 + years

1.63

Autism Severity

R =—0.04 (n.s.)

 Mild (1)

2.38

 Moderate (2)

2.20

 Severe (3)

2.24

Diet Quality

R = 0.05 (n.s.)

 Excellent (5)

2.41

 Very Good (4)

2.13

 Good (3)

2.04

 Fair (2)

2.32

 Poor (1)

2.21

Limited Variety of Foods

R = 0.03 (n.s.)

 Not limited

2.25

 Slightly limited

2.16

 Somewhat limited

2.28

 Very limited

2.35

Use of Psychiatric or Seizure Medications

n.s

 Yes

2.14

 No

2.34

Dosage

n.s

 Full dose

2.43

 Reduced dose

2.21

Was the dosage gradually increased during the first month per ANRC guidelines?

p = 0.006

 Yes

2.38

 No

1.70

Duration of ANRC-EP usage

R = 0.22 (p = 0.01)

 3–5 months

1.9

 6–8 months

2.2

 9–12 months

2.2

 1–2 years

2.4

 2–3 years

2.6

 4 + years

2.7

Developmental History

n.s

 Early Onset of autism

2.14

 Normal development, followed by regression or plateau

2.38

Intellectual Disability

n.s

 Yes

1.97

 No

2.34

Seizures

n.s

 Yes

2.00

 No

2.29