Oscar G. Bukstein, MD, MPH
Attention-deficit/hyperactivity disorder
(ADHD) is the most common
mental health problem affecting children
and adolescents. Epidemiological studies
have reported from 3% to 8% of children
and adolescents meet diagnostic criteria for
ADHD.1 In recent years, there has been an
increase in both office visits and stimulant
prescriptions for ADHD.1-3 In part, this
increase in patients seeking treatment
reflects the fact that ADHD can be successfully
treated.4 More than 200 controlled
studies have established the efficacy of stimulant
medications and specific behavioral
interventions for children and adolescents
with ADHD.5,6 In the past several years, several
new medications have been marketed.
While most of these are new versions or formulations
of stimulant medications (ie,
methylphenidate [MPH] or amphetamine),
others such as atomoxetine are new, nonstimulant
drugs approved for the treatment
of ADHD by the US Food and Drug Administration
(FDA).
With all of these medication options, as well
as numerous nonmedication psychosocial
therapies to choose from, clinicians, particularly
primary healthcare physicians, seek
guidance and advice about which specific
medications, formulations, modalities, or
combinations of modalities to prescribe.
Studies such as the National Institute of
Mental Health Multimodal Treatment Study
of ADHD (MTA)7 and guidelines from the
American Academy of Pediatrics 4 and
American Academy of Child and Adolescent
Psychiatry 5,6 may assist clinicians in their
clinical decision-making process. Although
the efficacy and safety of these modalities
may primarily determine the intervention
selected, patient or parent satisfaction
may also be a primary consideration for the
clinician.
The literature examining satisfaction for
ADHD treatments is limited; therefore, this
article will examine parent and patient satisfaction
with treatments for ADHD and similar
behavioral disorders in children and
adolescents, using the literature for satisfaction
of medical treatment and mental health
treatments. The general determinants of satisfaction
with medical care and behavioral
healthcare of children and adolescents, satisfaction
with medication and specific medications
for ADHD, and finally differential
satisfaction with various treatment modalities
for ADHD will be examined.
Why Is Satisfaction With Medical Care
Important?
Satisfaction with a particular treatment is
one element of the perception of medical
care that is often related to outcomes and
quality.8 With the recent increase in emphasis
for providers of services to be more
accountable and to provide both quality and
effective treatments, satisfaction with services
is often the only variable measured, as
it is believed to be an indicator of the quality
or effectiveness of services. More than
90% of behavioral health organization representatives
view consumer satisfaction as
an important outcome and perhaps the
most helpful for their purposes.9 Many
providers now mandate the inclusion of
consumer satisfaction measures as a way of
assessing the quality and perceived benefits
of a service.10,11
One of the primary reasons for considering
consumer satisfaction is the large number
of people with diagnosable mental
disorders who do not seek treatment or discontinue
treatment. Approximately 40% to
60% of children and their families discontinue
treatment prematurely.12 Treatment
retention is a significant predictor of mental
heath treatment outcomes in youth with disruptive
behavior disorders.13 Satisfaction is
presumed to predict adherence or compliance
to treatment.14,15 For example, studies
examining compliance with ADHD medication
show short-term compliance with medication
between 67% and 80%, although
longer-term compliance is lower with rates
of 56% to 60%.16 Because of increased
emphasis on consumer control and perception
of their healthcare, satisfaction and
patient preference are increasingly important
determinants of care.
General Determinants of Satisfaction
Satisfaction does not correspond to a specific
variable such as outcome. Rather, satisfaction
is composed of several primary
variables or determinants. Satisfaction may
be influenced by culture, which affects one's
beliefs, perceptions, and reactions to symptoms.
Other determinants of satisfaction
include demographic characteristics and the
effectiveness, social validity, or acceptability
of the treatment, the expectations of the
consumer(s), and provider factors. The
importance of each of these specific determinants
in contributing to treatment satisfaction
likely varies for the disorder being
treated, the treatment modalities being
used, and the characteristics of the provider
and client. Different factors predicting satisfaction
may be more important at different
times in the treatment process. For example,
early treatment factors of satisfaction may
include aspects of the patient-clinician relationship
(including expectations), while
symptom resolution and functional status
may be more important later on in the
course of treatment.17
Demographic Characteristics. Older
patients are generally more satisfied with
their healthcare than younger patients.
Similarly, parents show higher rates of satisfaction
than their children, particularly in
the treatment of ADHD.18 Other demographic
characteristics such as sex seem to be less
important or unimportant.19,20
Several recent studies have reported
lower ADHD medication use among ethnic
minorities.21-23 While these results may be an
indication of reduced access or provider
bias, minority attitudes about the use of
medication may also have a role. Cultural
factors may affect the acceptance of and
adherence to specific interventions.24
Compared with Caucasian parents, non-Caucasian parents appear less likely to recommend
medication, less likely to prefer
medication over counseling, and tend to be
less satisfied with medication.25 Results from
the MTA study show no difference between
ethnic/racial groups in initial satisfaction
with modality assignment or adherence as
measured by attendance at parent management
training sessions.26
Effectiveness. Consumers should be
more satisfied with treatments that actually
work (ie, produce change in the target symptoms
or behaviors). Research on the relationship
between satisfaction and changes in
other outcome domains in children's mental
health treatment studies is mixed.27,28
Unfortunately, there are few studies examining
the relationship between satisfaction and
patient/parent satisfaction. Several studies
of mental health treatment have found no
correlation between satisfaction and pathology
change.29,30 Parents may be satisfied
with and report more improvement with traditional
child mental health treatment than
with control treatment, despite there being
no significant differences in child functioning
between the compared treatments.31
When considering therapist-rated outcomes,
the literature offers contradictory results,
with some studies showing a correlation
between outcomes and satisfaction,17 while
other studies show stronger relationships
between satisfaction and patient ratings of
effectiveness or outcome.32 Interestingly,
parents and adolescents differed in their ratings
of satisfaction with treatments as symptoms
changed. In one study of satisfaction
with mental health treatment, ratings of satisfaction
from adolescents were correlated
with symptom change, while parent satisfaction
was not correlated with symptom
change.29 Differences between the satisfaction
and outcome relationship may be present
in different types of health problems,
with a greater relationship between satisfaction
and outcome or functional improvement
in medical than with mental
disorders.33 Some investigators have noted a
distinction between perception of benefit
and satisfaction,20 and insist that satisfaction
should not presume a specific treatment outcome.
Unfortunately, some may be satisfied
with ineffective and possible dangerous
interventions.34
In the case of ADHD, disproved treatments
such as diet changes and unproved
treatments such as attention-training or
herbal remedies may produce considerable
parental satisfaction despite the fact that
they may not be effective. As seen in the
MTA study, satisfaction is greater for specific
treatments that are less effective than for
treatments (ie, medication) that are less
favored. Many of the professional guidelines
of the American Academy of Pediatrics or the
American Academy of Child and Adolescent
Psychiatry are only partially congruent with
parent ADHD treatment preferences.35
Findings that suggest satisfaction is not
always related to outcomes or functional
improvement may be related to patient or
parent perception of improvement rather
than more objective measures of improvement
in symptoms or functioning. Several
factors are likely to influence the perception
of improvement. These include the patient
or parent's acceptability of the specific treatment
modality, as well as the general and
specific expectations for treatment.
Many of the same factors that apply to
adult satisfaction apply to younger patients.
For adolescents some of the strongest correlates
of satisfaction are attitudinal variables
such as expectations for treatment and perceived
motivation or choice for continuing
treatment.36,37
Social Validity and Acceptability. In
response to concerns about the difficulty
of implementing experimental treatments,
Wolf 38 and Kazdin 39 defined several concepts
under the rubric of social validity.40
The 3 components of social validity include
treatment goals, procedures, and
outcomes. In treatment outcome studies,
social validity of an intervention must be
established by demonstrating that the outcomes
or goals are meaningful in the family's
life and that the goals and procedures
are acceptable or perceived relevant by
families or "consumers." The social validity
of goals often relates to matching consumer
expectations. The "acceptability" of
a treatment procedure refers to the willingness
and ability of consumers to use or
participate in the intervention. Despite
any intrinsic effectiveness of a treatment,
if consumers are unwilling or unable to use
it, the treatment does not have social validity,
cannot be considered effective in the
real world, and is unlikely to produce satisfaction
by its consumers. Such factors as
perceived stigma of the disorder and treatment,
as well as misconceptions about the
etiology or nature of the disorder, could
affect acceptability.
Acceptability may affect satisfaction with
a particular treatment despite the efficacy of
the treatment. A few studies of treatment
acceptability have indicated that parents are
more likely to enroll in a treatment regimen
if they have a higher opinion of it.41
Acceptability of a given treatment has not
been shown to affect short-term compliance
with the treatment.41,42 However, there
appears to be a relationship between perceived
barriers to treatment, including items
tapping treatment satisfaction, and treatment
dropout/noncompliance.12,43
Parents usually consider stimulant therapy,
the cornerstone of ADHD treatment in
the United States, as a difficult modality to
consider and accept for their children.35 In
general, when treating ADHD, parents rate
behavioral treatment as more acceptable
than medication.44 In the MTA study, 9% of
families whose children were assigned to the
medication-management-only group refused
assignment while only 3.4% assigned to the
combination medication and behavioral
management group refused assignment.7
Parents rate behavioral treatments, in particular
positive behavioral techniques and
daily report cards, as much more acceptable
than medication treatment.41,42,45-48 Teachers
have similar attitudes about the acceptability
of behavioral treatment over medication.49,50 Some studies 45,48,50 have also shown
that ratings of combined treatments are
superior to those of medication alone.
Why is this discrepancy present? While
the primary analyses of dimensional symptoms
related to ADHD showed no significant
difference between the combined and med
management (only) groups, a number of
secondary analyses have suggested that
combined treatment was superior to medication
alone for the following outcomes: a
composite measure of symptomatic and
impairment-related functioning, normalization
of symptoms, parent-child relationships,
and for multiply-comorbid children.51-55 The
behavioral components of the MTA study
were largely designed to increase the positive
skills of ADHD children while medications
reduce the negative or core ADHD
symptoms. Studies of parents with children
who have disruptive behavior disorders suggest
that these parents evaluate modalities
that focus on increasing acceptable behaviors
more highly than modalities that reduce
negative behavior.56
Acceptability can change over the course
of treatment. For example, patient or parent
knowledge base about a disorder may affect
acceptability. Some researchers have shown
that providing parents with more information
regarding ADHD and its treatment
increases their acceptability ratings for medication.42,45 Acceptability may also be
improved by receiving the treatment.45,47 In
the MTA study,7 most of the parents who
were initially disappointed at being assigned
to the medication-management-only group
and not the combined behavioral or behavioral
treatment–only groups reported general
satisfaction at the end of treatment.19
Other studies have shown that acceptability
ratings increase when behavioral treatments
are added to the medication.48,50,57 Similarly,
providing a rationale for ADHD treatment by
presenting additional information about
treatment modality options increases parents'
acceptability for treatments involving
medications but not for behavioral treatments.58 In the same study, this effect was
not observed for teachers. A parent's experience
with treatment may influence acceptability.
A history of ADHD medication use
predicted an increased willingness to use
medication, while a history of counseling
predicted an increased willingness to use
both medication and counseling.59 A positive
experience with medication or treatment
may be a critical determinant of acceptability.
Comparing the acceptability of
behavioral, medication, and combination
treatment, parents of children with ADHD
rate the acceptability of the medication
treatments higher than parents of children
without ADHD.58
Expectations. Expectations of a medical
encounter may also influence satisfaction.
Of course, unfulfilled expectations can lead
to lower compliance, which can lead to
lower symptom relief. Several studies indicate
that attitudes and expectations about
mental health services are related to satisfaction
with service. Satisfaction is higher
when expectations are met 18,60-63 and lower
when expectations are not met.64 When
expectations are positive, satisfaction is
higher.36,37
Expectations may affect satisfaction
through the acceptability of a treatment
modality. Parental ambivalence about medication
treatment may be driven by the
sources of information about ADHD and its
treatment. Prior to treatment, psychoeducation,
and informed consent, a parent's information and knowledge of ADHD are primarily
gleaned from the popular media in which
ADHD medications have been the source of
much controversy.35 Despite knowing that
their children need treatment, parents may
be wary about some ADHD modalities, especially
medication. They may expect unacceptable
adverse effects or fear social stigma
that they expect would be related to medication
use.
Provider Factors. Mental healthcare
consumers identified bonding with the
provider along with the provider's knowledge
and competence as the most important
factors that contribute to consumer satisfaction.65 Such factors are known to be part
of clinicians' "bedside manner." Patient satisfaction
is strongly influenced by patient-provider
communication variables, such as
receiving an explanation of symptom cause
and likely duration of treatment.62 Studies,
such as by Gage and Wilson,57 demonstrate
the importance of provider psychoeducation
in changing parental attitudes about treatment.
Satisfaction related to provider factors
may be largely fulfilled through meeting the
patient's expectations or modifying those
expectations through psychoeducation.
Provider or physician knowledge and
competence are also critical. In the MTA
study, the medication management condition
did much better than those assigned to
the community condition, despite the fact
that most of the community assigned to controls
received medication.7
This difference was attributed to the likely
higher quality of care delivered by the
MTA pharmacotherapies that used the most
current procedures and knowledge base. As
much of ADHD management concerns medication
management, future research should
study determinants of satisfaction with this
practice.
Satisfaction With Specific ADHD
Medications
Clinical trials of medications for ADHD,
including both phase 3 and postmarketing of
specific medications, often include parent
satisfaction as a variable. Parents are asked
how satisfied they are with the specific medication
treatment and, if previously treated,
how satisfied they were with the medication
treatment compared with the previous treatment?
Satisfaction ratings by parents who
were very or moderately satisfied in recent
trials range from 87%66 to 62%.67 Recent
studies of stimulant medication have reported
rates of satisfaction with medication
treatment,67-69 with 50% to 74% of parents
and teachers making positive endorsements
of satisfaction for treatment that involves
medication alone.
Unfortunately, little may be gained from
these satisfaction ratings of medications
within the context of clinical trials for several
reasons. First, children and their parents
participating in a medication trial
likely represent a biased sample. Few would
agree to participate in a study if they were
satisfied with their previous medication or
treatment, which may be the control or
comparison treatment. Many families are
happy to receive treatment or at least an
evaluation by "experts."70 Johnston and
Fine71 reported higher satisfaction with a
double-blind, placebo-controlled medication
trial than with typical clinical procedures.
Second, there are few well-controlled,
blinded, head-to-head comparisons between
rigorously determined equivalent doses of
the comparative medications (ie, MPH vs
amphetamine or between different formulations
of MPH), particularly those that
compare relative satisfaction. One prominent
exception is a double-blind, doubledummy
comparison between once-daily
osmotic release oral system (OROS) MPH
(Concerta) and 3-times-daily MPH immediate
release (IR), in which 47% of parents
preferred OROS MPH, 31% chose the MPH
IR 3 times daily, and 15% chose their previous
MPH regimen.72 In 2 open-label
studies of OROS MPH, about 85% of parents
were satisfied, very satisfied, or
extremely satisfied with once-daily OROS
MPH in the first months of therapy. In the
second year of the study, 97% to 99% of
parents were satisfied with once-daily
OROS MPH. This suggests that long-term
parent satisfaction can be maintained with
once-daily OROS MPH therapy.73
However, these results involve a forced
preference rather than satisfaction with a
particular medication or treatment. Third,
medication trials may produce high levels of
satisfaction for no pharmacological reasons
(ie, provider factors, etc). Finally, consumers
typically report high levels of satisfaction
in such trials and there is often little
variation.10
To make more salient conclusions from
clinical trials regarding the level of satisfaction
across treatments, investigators must
incorporate better designs relating to satisfaction
measurement. The new long-acting
medications for ADHD do improve compliance
by eliminating the disadvantages of
multiple-day dosing.72,73 Evidence from
other pediatric therapeutic areas supports
the value of daily dosing in improving compliance.16 Clinical experience suggests that
most parents prefer the once-daily preparations,
primarily for convenience reasons.16
The introduction of nonstimulant medications,
such as the recently FDA-approved
atomoxetine, as well as other nonstimulants
may provide an alternative for those patients
who experience stimulant-induced insomnia
or tics. In addition, nonstimulants may be
appropriate for individuals at risk of stimulant
abuse.74 However, more research is
needed to fully understand the implications
of nonstimulants and their role in affecting
patient and parent satisfaction.
Satisfaction With ADHD Medication versus
Nonmedication Treatments
Pelham and colleagues20 examined treatment
satisfaction and global improvement
after 14 months of treatment as part of the
MTA study.7 Parents of children randomly
assigned to the behavioral or combined
(behavioral plus medication) treatment conditions
reported more satisfaction and were
less likely to decline or to drop out of treatment
than parents of children assigned to
medication only. Teachers were also more
satisfied with treatments that included a
behavioral component than with medication
alone, and they indicated that the behavioral
treatments made them better able to deal
with ADHD in the classroom than did medication
alone. These results are consistent
with parent perception that children in the
combined group were more improved than
those in the medication-only or other comparison
groups. Prior to the onset of treatment,
more parents of children assigned to
the combined group were generally or very
positive about their assignments and fewer
were disappointed when compared to those
assigned to the medication-only group.
However, outcomes were best for the medication-only group.
Positive attitudes about medications are
associated with greater satisfaction.25 A
study by Sleator and associates 75 found that
a majority of children taking stimulant medication
disliked taking medication, although
this may reflect a general dislike of medicine.
However, another study reported that
most children treated for ADHD with medication
view medication favorably, but a
larger percentage of children versus parents
viewed medication in a negative light.18
However, this was not once-daily medication
and could have affected the results.
Provision of education and information
about ADHD and medication is often seen as
an important aspect of the treatment
process. However, a higher level of knowledge
of ADHD may not affect parents' opinion
of medication or predict treatment
compliance, despite predicting an increased
willingness to accept both medication and
nonmedication treatments.36,37 These studies
suggest that knowledge alone may not
improve acceptability. It is possible that the
stigma or philosophic aversion against medication
for behavior problems in most societies
is sufficient to create ambivalence
about medication or, at least, medication
treatment without any medication modalities.
Once-daily treatments have demonstrated
better compliance rates and greater
satisfaction and increased preference. In 2
laboratory school studies with double-blind,
double-dummy tablets for MPH IR 3 times
daily and OROS MPH, parents showed a
strong preference for OROS MPH. Because
overencapsulated tablets were taken for
both drugs throughout the study, the preference
did not reflect the convenience of
once-daily dosing.72,76
What Should Be Done About Satisfaction
for ADHD Treatments
As with treatment for other mental health
problems, satisfaction should not serve as a
proxy for treatment outcome in ADHD. Expensive, unsupported, or disproved therapies
for ADHD, such as diet, attention training,
electroencephalogram, and/or biofeedback,
may produce significant levels of satisfaction,
yet little in the way of objective
improvement. Outcomes should be based on
improvements in target symptoms and/or
functioning. However, treatments offered
must not only be effective, but should have
social validity and acceptability as well.
Measuring satisfaction in the case of
ADHD treatment serves several purposes.
First, parent, child/adolescent, or teacher
satisfaction may identify modalities that are
more acceptable, and hence, may predict
better compliance or adherence. Once-daily
medication has demonstrated this as
well.72,73 These preferences may be particularly
important when there are several effective
modality options. In treating ADHD,
despite the seeming superiority of medication
as a single modality, the literature suggests
that multimodal treatment, which
combines the preferred treatment, behavioral
therapy, with medication treatment
that produces more parental, patient, and
societal ambivalence may be optimal for
both outcome and satisfaction. Second, satisfaction
may relate to physicians, some
with poor knowledge and skills and others
with poor "bedside manner" who, while
knowledgeable and competent, nevertheless
fail to inspire a family's confidence. Despite
improvements in symptoms and functioning,
families may prematurely end treatment
with such providers or even disenroll in
health insurance plans. Finally, satisfaction
measures may allow both provider and plan
to identify expectations of their patients.
Providers can then address these expectations
through the treatment plan and selection
of acceptable modalities or through
psychoeducation. Most patients will appreciate
when providers are listening to them and
their concerns.
Providers must ask about specific expectations
when starting assessment and treatment
and prompt families to reply whether
these expectations are being met or not on
an ongoing basis during treatment. Anticipating
what effective modalities may be preferred,
the provider should facilitate the
provision of these modalities or the referral
to qualified providers of these modalities.
Managed care organizations (MCOs) can
also anticipate and identify preferred
modalities and facilitate their access and
use. In addition to examining clinical outcomes,
MCOs should also survey their
enrollees regarding satisfaction in an objective
manner.
Clinically, for ADHD, the existing literature
points to several more specific recommendations.
First, as noted above, providers
need to be aware of consumer preferences
and expectations. Second, providers may be
able to change such preferences through
careful, sensitive psychoeducation procedures
and informed consent. Third, providers
with the skills and knowledge of best
practices in ADHD treatment will likely
deliver better care than those who do not
have these skills. Improving the quality of
ADHD-related practice involves following
best-evidence practice through clinical
guidelines for the evaluation and management
of ADHD as provided by the American
Academy of Pediatrics and the American
Academy of Child and Adolescent Psychiatry.4-6 Finally, providers should respect the
fact that consumers have specific preferences.
Even if medication or combined medication
and behavioral treatment are
superior to behavioral treatment alone,
behavioral treatment alone can be effective.
Future Research
Although the existing literature on satisfaction
with ADHD treatment and with treatment
of mental health problems can provide
valuable lessons for today's providers, future
research will have to anticipate the importance
of satisfaction research and the need
for establishing the social validity of a treatment
modality. Although several satisfaction
measures exist, the development of consistent,
uniform variables to compare across
studies would be useful. All clinical trials
should build in satisfaction measures with
the same methodological rigor as primary
outcome variables. Studies should consider
and study whether participants assigned to
their a priori preference do better than those
who are not assigned to their preferred treatment.
Finally, treatment researchers should
consider alternatives to random assignment,
such as experimental models where participants
are assigned to specific treatment conditions
or modalities according to their preferences.
Conclusion
ADHD is a common disorder of children,
adolescents, and even adults. With the many
types of modalities, medication and nonmedication,
as well many types of medications
to choose from, consumer satisfaction
is an important consideration for consumers,
providers, and MCOs. Consumer
satisfaction should take its place beside best
practices for measuring optimal outcomes in
guiding treatment selection and procedures.
|
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