. Author manuscript; available in PMC: 2019 Oct 1.

Published in final edited form as: J Atten Disord. 2016 Feb 27;23(12):1438–1453. doi: 10.1177/1087054716629217

Table 4.

Factors Associated With Childhood Subtype Stability.

	Stable childhood subtype (n = 141)	Unstable childhood subtype (n = 70)	Unadjusted OR (95% CI)	Uncorrected p values
Mean age	35.5	35.8	t₂₀₈ = −0.18	p = .860
% Male	78.0	74.3	OR 0.81 [0.42, 1.59]	p = .546
% Family history of ADHD	37.3	42.3	OR 0.81 [0.32, 2.04]	p = .657
% Conduct disorder symptoms	73.3	61.2	OR 1.74 [0.92, 3.30]	p = .087
% Past stimulant medication treatment for ADHD	16.8	14.7	OR 1.17 [0.52, 2.62]	p = .703
% Childhood subtype
Inattentive	17.7	38.6	OR 0.34 [0.18, 0.66]	p = .001^*
Hyperactive-impulsive	17.0	25.7	OR 0.59 [0.30, 1.18]	p = .139
Combined	65.2	35.7	OR 3.38 [1.86, 6.15]	p < .001^*

Note. OR = odds ratios; CI = confidence intervals.

p value significant after correcting for multiple comparisons (corrected p < .017).