Table 2 Linear regressions.

From: Poor response to methylphenidate is associated with a smaller dorsal attentive network in adult Attention-Deficit/Hyperactivity Disorder (ADHD)

Tract metric

BAARS-INA

BAARS-HI

 

Equation

F

p

R2

Equation

F

p

R2

Left SLF I volume

SI = 2.340 + .250 SLF I Vol (ml)

6.968

0.011

0.107

SI = −0.229 + 0.339 SLF I Vol (ml)

9.717

0.003

0.144

SLF I LI

SI = 4.667−2.441 SLF I LI

1.722

0.195

0.029

SI = 2.895−2.640 SLF I LI

1.454

0.233

0.024

Left AT HMOA

SI = 15.137−128.551 AT HMOA

4.899

0.031

0.078

SI = 3.804−12.780 AT HMOA

0.032

0.858

0.001

  1. Linear regression revealed that the left SLF I and the left anterior thalamic HMOA were associated with the degree of symptomatic improvement after two months of treatment (i.e., reduction of the number of symptoms from baseline). Symptom improvement at follow-up can be calculated according to the formula Y = α + βX, where α and β are the regression coefficients and X is the tract metric of interest. Statistically significant results are displayed in bold.
  2. AT anterior thalamic, BAARS-HI Barkley scale-hyperactive/impulsive symptoms, BAARS-INA Barkley scale-inattentive symptoms, HMOA hindrance modulated orientational anisotropy, LI lateralization index, SI symptom improvement, SLF superior longitudinal fasciculus, Vol volume.
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