For decades we’ve been splitting ADHD into three types: Inattentive, Hyperactive/Impulsive, and Combined Type. One widely cited meta-analysis indicated that 72% of adolescents, and 47% of adults with ADHD had the Inattentive type.
Complex factor analyses support the validity of a distinct inattentive/executive dysfunction subtype. Some researchers suggest that Inattentive ADHD differs enough from combined and hyperactive/impulsive types of ADHD that it should be considered a separate disorder.
Although there are many claims that Inattentive ADHD is overrepresented in women, the data for this is inconsistent and weak.
Both in my direct patient experience, and online observations suggest that many of those who identify as having Inattentive ADHD display a robust number of hyperactive and inattentive ADHD trait. Many of these individuals will say things like “I only have ADD, not ADHD.” Why do people with hyperactive/impulsive traits (e.g. blurting out comments, interrupting others, loud and excessive talking, excessive restlessness, and impulsive decision making) deny the existence of combined type ADHD?
While there is little research on the topic, I think that the two big factors are stigma, not just towards ADHD, but particularly towards those that resemble “rudeness” or “unacceptable behavior” along with an ADHD-driven impairment in self-monitoring. Women in particular may feel greater social pressure to hide or suppress certain signs of ADHD. This is particularly true since Inattentive ADHD often leads to “crimes of omission” whereas Impulsive/Hyperactive ADHD contributes to “crimes of commission”
So yes, Inattentive ADHD exists, but often we use the label incorrectly.
We need to continue work on decreasing stigma about ADHD and all neurotypical behaviors. We also should continue to improve therapeutic approaches for increasing self-awareness.
