Inattention is the only psychopathology symptom dimension associated with slow processing speed, and it does not explain the associations with ASD or psychosis¶

Claim · All claims
Evidence · 1 study (2 entries) · associational r3 · q3
Currency · newest study 2020 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? In a logistic regression of eight symptom dimensions, only inattention significantly predicted slow PS (OR = 1.44, p = .007). → Braaten EB 2020 q3 i? Adding inattention symptoms to the diagnostic-group models did not eliminate the significant associations for psychosis (OR = 5.51) and ASD (OR = 1.98). → Braaten EB 2020 (2)

Evidence¶

Braaten EB 2020¶

Braaten EB, Ward AK, Forchelli G, Vuijk PJ, Cook NE, McGuinness P, Lee BA, Samkavitz A, Lind H, O'Keefe SM, Doyle AE. (2020). Characteristics of child psychiatric outpatients with slow processing speed and potential mechanisms of academic impact. European Child & Adolescent Psychiatry. https://doi.org/10.1007/s00787-019-01455-w

q3 · i? · associational · r3

Logistic regression in 492 youth with complete dimensional ratings (Table 5) tested eight symptom dimensions as predictors of slow PS, controlling for age, sex, and medication. Girls were less at risk (OR = 0.46, p = .001) and medicated youth more at risk (OR = 2.00, p = .003).

"when we related all dimensions to slow PS in a single model, only inattention symptoms showed a significant association. Here, an increase of one SD in inattention symptoms increased the risk of endorsing PS problems 1.4 fold ([95% CI 1.10 – 1.87], p = .007)."

Braaten EB 2020 (2)¶

Braaten EB, Ward AK, Forchelli G, Vuijk PJ, Cook NE, McGuinness P, Lee BA, Samkavitz A, Lind H, O'Keefe SM, Doyle AE. (2020). Characteristics of child psychiatric outpatients with slow processing speed and potential mechanisms of academic impact. European Child & Adolescent Psychiatry. https://doi.org/10.1007/s00787-019-01455-w

q3 · i? · associational · r3

Diagnostic-group logistic regressions were re-run with inattention symptoms in the model. Associations for psychosis and ASD remained significant, suggesting inattention symptoms were not driving these associations; the ADHD trend was reduced further (OR = 1.11, p = .66).

"significant OR's were found for psychosis (OR = 5.51, 95% CI 2.16 – 14.05, p < .001), ASD (OR = 1.98, 95% CI 1.25 – 3.14, p = .004) and inattention symptoms (OR = 1.31, 95% CI 1.06 – 1.63, p = .01)."

Discussion¶

Related Claims¶

• Psychosis, ASD, and ADHD-Inattentive Type independently elevate risk for slow processing speed relative to referred youth without diagnoses — reports the opposite
• Having three or more comorbid psychiatric conditions increases risk for slow processing speed, but a single comorbid condition does not — related
• All diagnostic groups of referred youth, including those without full diagnoses, show processing speed below the population norm — related
• General processing speed (choice reaction time and figure matching) does not significantly predict mathematics achievement in Grade 7 or Grade 9 — related