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August 27, 2021
To gauge the extent of stigma towards persons with ADHD, a European research team hired a company specialized in market and social research to conduct a poll of some five thousand randomly selected Germans. Just over a thousand completed the interview, representing a response rate of only one in five. The team acknowledged, “Although non-responder bias has to be considered to be important, ethical considerations prohibited the collection of any detailed information on non-respondents.” The sample had slightly more women and elderly persons, and a higher average level of educational attainment relative to the German population as a whole. Sampling weights were used to compensate for these discrepancies.
The poll relied on computer-assisted telephone interviews. Interviews began with prerecorded vignettes of either a 12-year-old child or 35-year-oldadult exhibiting core symptoms of ADHD (such as “careless mistakes in schoolwork,” “does not follow through on instructions,” “easily distracted by extraneous stimuli”, “loses things”, “leaves his place in the classroom or when sitting at the dining table”). Half of those interviewed were presented with child vignettes, and half with adult vignettes. The gender of the person described varied randomly.
On a scale of one to five, respondents were asked to indicate levels of agreement with two statements: 1. ‘‘Basically, we are all sometimes like this person. It’s just a question of how pronounced this state is.’’ 2. “All in all, the problems of Robert / Anne are abnormal.” For both child and adult vignettes, two out of three respondents agreed that “we are all sometimes like this person.” One in three respondents considered the problems depicted in the child vignettes as abnormal. That dropped to one in four in the adult vignettes.
Next, respondents were asked whether they ever had a problem like this, and whether someone among their family or close friends ever had to deal with such a problem. For both vignettes, one in four acknowledged having had a problem like this, and half said a close friend or family member had such a problem.
On the assumption that “negative emotional reactions are an important consequence of negative stereotypes, leading to separation, discrimination and status loss,” respondents were probed for their specific emotional reactions. “I feel annoyed,” “I react angrily,” and “provokes my incomprehension” were interpreted as indicating varying levels of anger.“Provokes fear” and “Makes me feel insecure” were seen as indicating fear. “I feel uncomfortable” was viewed as indicating somewhere between fear and anger. On the other hand, “I feel the need to help,” “I feel pity,” and “I feel sympathy” were interpreted as “pro-social” responses.
Pro-social reactions were by far the most common. Over two-thirds felt a need to help a child, and over half to help an adult, in such a situation. In both instances, almost half felt sympathy, and a half or more felt pity. On the other hand, a quarter of respondents in each case felt annoyed, and just under one in five felt uncomfortable. Almost one in seven reacted angrily to the child vignette, and almost one in six to the adult vignette. Fear was the least frequent emotional reaction.
In the case of adults, respondents were also asked about their willingness to accept the person described in the vignette in seven social situations:
· Working together
· As a neighbor
· Marrying into the family
· Introducing to a friend
· Renting a room
· Recommending for a job
old adult· Taking care of chi
While three out of four respondents were willing to accept such persons as co-workers, only one in three would recommend them for a job. Two out of three would accept such persons as neighbors, and almost as many to marry into the family. Three out of five would very willingly introduce such persons to friends. Slightly over half would rent a room to them. But less than one in three would be willing to have such individuals take care of their own children.
Older respondents were more likely to see the problems as“abnormal” and to seek greater social distance. Women, and respondents with higher levels of education, were less likely to see the problems as abnormal and more likely to respond in pro-social ways.
Though showing most Germans to be accepting of persons with ADHD, these findings still indicate a significant degree of stigma, though less than for other psychiatric conditions such as depression, schizophrenia, or alcohol dependence.
Sven Speerforck, Susanne Stolzenburg, Johannes Hertel, HansJ. Grabe, Maria Strauß, Mauro G. Carta, Matthias C. Angermeyer, Georg Schomerus, “ADHD, stigma, and continuum beliefs: A population survey on public attitudes towards children and adults with attention deficit hyperactivity disorder,” PsychiatryResearch (2019) DOI: https://doi.org/10.1016/j.psychres.2019.112570.
The Background:
Management of ADHD relies on both medications and non-medication approaches. Clinical guidelines often recommend medication as the first-line treatment for adults, while non-medication interventions are often preferred for children. Medicines fall into two main groups: stimulants (for example, methylphenidate and amphetamines), which have strong and well-established evidence and are generally considered first choice, and non-stimulants (such as atomoxetine), which are typically used when stimulants are contraindicated, not tolerated, or ineffective.
How many people with ADHD receive medication is an important indicator of care quality and can be tracked at the national level. Untreated ADHD can affect many areas of life, from physical health, to school and work performance, to relationships emotional well-being. ADHD is associated with poorer quality of life, higher risk of accidents, substance use issues, criminal behavior, educational underachievement, and even increased premature mortality. The condition also places a substantial burden on families and caregivers, so understanding treatment rates matters for individuals and society.
Most epidemiological research has measured how common diagnosed ADHD is, but the share of those diagnosed who actually receive medication can vary a lot. That variation reflects differences in how ADHD is diagnosed, how easy it is to get treatment, what clinical guidelines recommend, and cultural attitudes toward using medication.
The Study:
This paper presents the first comprehensive meta-analysis to estimate how common pharmacological treatment is among children, adolescents, and adults with clinically confirmed ADHD. The analysis included only register-based population studies where diagnoses were confirmed by a qualified healthcare professional. Twelve studies meeting these criteria from Europe (the UK, Sweden, Denmark), Asia (Taiwan, South Korea), and North America (Canada, the United States) were used. Notably, these are all high-income areas, and thus unrepresentative of populations in lower-income countries.
The pooled estimate showed that about 73 percent of diagnosed individuals in prosperous parts of the world with well-developed health care systems were receiving medication, but there was very high variation between studies.
The Results:
The authors conclude there is substantial global variation in ADHD medication use. Overall, a relatively high proportion of people diagnosed with ADHD are treated with medication, which may reflect improved recognition and access to care. The large differences between studies probably reflect differing health systems, diagnostic rules, treatment definitions, study populations, and reporting practices, and they underline the need for more standardized definitions and reporting to make comparisons more meaningful.
There is also a need for information from lower-income regions, but that is complicated by an absence of register-based population studies in countries with more limited health care access.
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The Background:
Because impulsivity is a core feature of ADHD, researchers have suggested it may raise the likelihood that someone will use psychoactive substances (including alcohol) and go on to develop a substance use disorder (SUD). When ADHD and SUD occur together in adolescents, treating one disorder alone usually has little or no positive effect on the other; current guidance therefore recommends treating both conditions at the same time using evidence-based approaches for each.
Given how much ADHD can worsen outcomes for people with primary SUDs, it is important to identify ADHD in people who are being treated for substance problems.
The Study:
A recent systematic meta-review found that, by current official criteria, ADHD affects about 7.2% of children and adolescents and about 2.6% of adults (Chaulagain et al., 2023). When adult ADHD is defined without the requirement that symptoms began by age 11, roughly 6.8% of adults meet criteria. A large body of research links ADHD to higher rates of medical problems, poorer quality of life, greater risk of suicide, more accidental injuries, worse educational outcomes, and increased involvement with the criminal justice system.
The present study is the first meta-analysis to estimate how common clinically diagnosed ADHD is among adults (age 18+) who are in treatment for psychoactive substance use disorders, and to provide those estimates by sex and by the specific substance used.
The authors included only studies of adults treated for a SUD (including alcohol). Eighty-four studies met the criteria, representing more than 34,000 people. Across all studies, the pooled prevalence of clinically diagnosed ADHD was 22%.
To put that in context, 22% is about eight times higher than the 2.6% adult prevalence using the stricter official definition, and about three times higher than the 6.8% rate when the childhood-onset requirement is relaxed. By substance, the prevalence was similar for alcohol (24%) and opioids (22%), with no significant difference between males and females. Prevalence among people treated for cocaine use was somewhat lower overall (18%), driven largely by lower rates among women, for whom the rate was no higher than in the general population. Estimates were higher for people using benzodiazepines and cannabis, but those figures are based on a very small number of users (256 and 249 people, respectively) and are therefore less certain.
The Results:
The authors conclude: “These findings underscore the need for early identification and treatment of ADHD as most substance use disorders develop in adolescence and young adulthood. While in treatment for ADHD, appropriate screening and management of substance use is possible.”
The Background:
Stimulant medications (like methylphenidate and amphetamines) and non-stimulants (like atomoxetine and guanfacine) remain the first-line treatments for ADHD, but their long-term use is often constrained by parental concerns, side effects (reduced appetite, sleep disruption, cardiovascular effects), and the fact that roughly 30% of children respond only partially or not at all. These medications tend to help with attention and behavior, but they do less to address emotional regulation or broader physical health, leaving some parents to seek other safe, complementary treatments.
Nutritional approaches, including omega-3 fatty acids, are one such avenue. Oily fish is the natural source, but clinical trials typically rely on supplements instead, since they allow for precise dosing, avoid the heavy-metal exposure that can come with high fish intake, and sidestep the problem of inconsistent dietary habits. Two omega-3s stand out as particularly relevant: DHA, which supports brain structure and cell-to-cell communication, and EPA, which helps reduce brain inflammation and improve blood flow. Both influence the dopamine and serotonin systems implicated in ADHD.
The Study:
Previous meta-analyses have generally found only modest overall benefits with mixed results. This mixed-results pattern may reflect the fact that children who had low omega-3 levels to begin with stand to benefit more than those whose levels are already adequate. This meta-analysis set out to test that idea directly, asking whether a child's baseline omega-3 status predicts how well they respond to supplementation.
To be included, studies had to be randomized controlled trials (RCTs) involving children diagnosed with ADHD who did not have major coexisting medical conditions. Trials that used broad multinutrient interventions, where the effect of omega-3s specifically couldn't be isolated, were excluded.
The resulting analysis of seven RCTs covering 654 children found small overall improvements in ADHD symptoms with omega-3 supplementation, consistent with earlier meta-analyses. There was little variation across studies, but a clear signal of publication bias, which the authors did not attempt to statistically correct for.
Among four RCTs involving 369 children with low baseline omega-3 levels, supplementation produced a moderate improvement in ADHD symptoms, with consistent results across studies. By contrast, the six RCTs covering 559 children with normal or high baseline omega-3 levels showed no improvement at all, again with consistent results across studies.
The Results:
The authors concluded: this systematic review and meta-analysis offers preliminary evidence that children’s response to long-chain omega-3 supplementation for ADHD may depend on their starting omega-3 nutritional status. Larger effects emerged in the subgroups defined by individual studies as having low baseline levels, while normal, high, or unstratified groups showed little evidence of benefit. In other words, there may be a benefit to children with ADHD taking omega-3 supplements, but only if they are already deficient.
Even still, a sensitivity analysis limited to ADHD symptom-rating scales found only a numerically higher effect in the low-baseline group. This means that these results, though positive, are not considered statistically significant.
The Take-Away:
Given that the evidence rests on just seven trials, that “low baseline” was defined differently across studies (using different biological markers and thresholds), and that several subgroup comparisons were not planned in advance, the authors caution that these findings should be treated as hypothesis-generating rather than conclusive.
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