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. Author manuscript; available in PMC: 2023 Jun 9.
Published in final edited form as: Clin Pediatr (Phila). 2020 May 22;59(9-10):874–884. doi: 10.1177/0009922820924692

Table 5.

Adjusted Odds Ratios of School Performance by ADHD Subtype, 2014 National Survey of the Diagnosis and Treatment of ADHD and Tourette Syndromea.

Problematic or somewhat problematic school performance
Overall Mathematics Reading Writing Handwriting
ADHD subtype AOR (95% CL) AOR (95% CL) AOR (95% CL) AOR (95% CL) AOR (95% CL)
Combined Inattentive and Hyperactive-Impulsive Subtype (ADHD-C) 5.84 (3.13–10.91) 1.79 (0.96–3.25) 3.78 (1.97–7.26) 2.34 (1.31–4.17) 2.42 (1.29–4.51)
Predominantly Inattentive Subtype (ADHD-I) 5.54 (3.05–10.05) 1.80 (1.04–3.12) 2.66 (1.48–4.82) 2.75 (1.63–4.65) 1.67 (0.95–2.96)
Predominantly Hyperactive-Impulsive Subtype (ADHD-HI) 2.61 (0.79–8.56) 0.73 (0.25–2.16) 2.34 (0.68–8.00) 0.55 (0.24–1.26) 1.07 (0.43–2.65)
Did not meet symptom criteria for ar ADHD Subtype 1.40 (0.79–2.50) 1.30 (0.74–2.27) 1.64 (0.93–2.88) 1.31 (0.79–2.18) 1.15 (0.66–2.00)
Does not have ADHDb 1.00 1.00 1.00 1.00 1.00

Abbreviations: ADHD, attention-deficit hyperactivity disorder; AOR, adjusted odds ratio; CL, confidence limit.

a

Each model was controlled for age, sex, race/ethnicity, family poverty level, and chronic conditions/disorders: anxiety, oppositional defiant disorder, obsessive-compulsive disorder, language disorder, and learning disorder.

b

Children who did not have ADHD served as the referent group.