Answer the following question after reading the two articles attached
Perspective
The NEW ENGLAND JOURNAL of MEDICINE
december 23, 2010
n engl j med 363;26 nejm.org december 23, 2010 2477
myriad, often conflicting goals,
including access to services, profitability,
high quality, cost containment,
safety, convenience,
patient-centeredness, and satisfaction.
Lack of clarity about
goals has led to divergent approaches,
gaming of the system,
and slow progress in performance
improvement.
Achieving high value for patients
must become the overarching
goal of health care delivery,
with value defined as the
health outcomes achieved per
dollar spent.1 This goal is what
matters for patients and unites
the interests of all actors in the
system. If value improves, patients,
payers, providers, and suppliers
can all benefit while the economic
sustainability of the health
care system increases.
Value — neither an abstract
ideal nor a code word for cost
reduction — should define the
framework for performance improvement
in health care. Rigorous,
disciplined measurement and
improvement of value is the best
way to drive system progress. Yet
value in health care remains largely
unmeasured and misunderstood.
Value should always be defined
around the customer, and
in a well-functioning health care
system, the creation of value for
patients should determine the
rewards for all other actors in
the system. Since value depends
on results, not inputs, value in
health care is measured by the
outcomes achieved, not the volume
of services delivered, and
shifting focus from volume to
value is a central challenge. Nor
is value measured by the process
of care used; process measurement
and improvement are important
tactics but are no substitutes
for measuring outcomes
and costs.
Since value is defined as outcomes
relative to costs, it encompasses
efficiency. Cost reduction
without regard to the outcomes
achieved is dangerous and selfdefeating,
leading to false “savings”
and potentially limiting
effective care.
Outcomes, the numerator of
the value equation, are inherently
condition-specific and multidimensional.
For any medical condition,
no single outcome captures
the results of care. Cost,
the equation’s denominator, refers
to the total costs of the full
cycle of care for the patient’s
medical condition, not the cost
of individual services. To reduce
cost, the best approach is often
to spend more on some services
to reduce the need for others.
What Is Value in Health Care?
Michael E. Porter, Ph.D.
I
n any field, improving performance and accountability
depends on having a shared goal that
unites the interests and activities of all stakeholders.
In health care, however, stakeholders have
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PERSPECTIVE
2478 n engl j med 363;26 nejm.org december 23, 2010
Health care delivery involves
numerous organizational units,
ranging from hospitals to physicians’
practices to units providing
single services, but none of
these reflect the boundaries within
which value is truly created.
The proper unit for measuring
value should encompass all services
or activities that jointly determine
success in meeting a set
of patient needs. These needs
are determined by the patient’s
medical condition, defined as an
interrelated set of medical circumstances
that are best addressed
in an integrated way. The definition
of a medical condition includes
the most common associated
conditions — meaning that
care for diabetes, for example,
must integrate care for conditions
such as hypertension, renal
disease, retinal disease, and vascular
disease and that value should
be measured for everything included
in that care.1
For primary and preventive
care, value should be measured
for defined patient groups with
similar needs. Patient populations
requiring different bundles of primary
and preventive care services
might include, for example,
healthy children, healthy adults,
patients with a single chronic disease,
frail elderly people, and patients
with multiple chronic conditions.
Care for a medical condition
(or a patient population) usually
involves multiple specialties and
numerous interventions. Value for
the patient is created by providers’
combined efforts over the
full cycle of care. The benefits of
any one intervention for ultimate
outcomes will depend on the effectiveness
of other interventions
throughout the care cycle.
Accountability for value should
be shared among the providers
involved. Thus, rather than “focused
factories” concentrating on
narrow groups of interventions,
we need integrated practice units
that are accountable for the total
care for a medical condition
and its complications.
Because care activities are interdependent,
value for patients
is often revealed only over time
and is manifested in longer-term
outcomes such as sustainable
recovery, need for ongoing interventions,
or occurrences of
treatment-induced illnesses.2 The
only way to accurately measure
value, then, is to track patient outcomes
and costs longitudinally.
For patients with multiple
medical conditions, value should
be measured for each condition,
with the presence of the other
conditions used for risk adjustment.
This approach allows for
relevant comparisons among patients’
results, including comparisons
of providers’ ability to care
for patients with complex conditions.
The current organizational
structure and information systems
of health care delivery
make it challenging to measure
(and deliver) value. Thus, most
providers fail to do so. Providers
tend to measure only what they
directly control in a particular
intervention and what is easily
measured, rather than what matters
for outcomes. For example,
current measures cover a single
department (too narrow to be
relevant to patients) or outcomes
for a whole hospital, such as infection
rates (too broad to be
relevant to patients). Or they
measure what is billed, even
though current reimbursement
practices are misaligned with
value. Similarly, costs are measured
for departments or billing
units rather than for the full
care cycle over which value is
determined. Faulty organizational
structure also helps explain why
physicians fail to accept joint responsibility
for outcomes, blaming
lack of control over “outside”
actors involved in care (even
those in the same hospital) and
patients’ compliance.
The concept of quality has itself
become a source of confusion.
In practice, quality usually
means adherence to evidencebased
guidelines, and quality
measurement focuses overwhelmingly
on care processes. For example,
of the 78 Healthcare Effectiveness
Data and Information
Set (HEDIS) measures for 2010,
the most widely used qualitymeasurement
system, all but 5 are
clearly process measures, and
none are true outcomes.3 Process
measurement, though a useful
internal strategy for health care
institutions, is not a substitute
for measuring outcomes. In any
complex system, attempting to
control behavior without measuring
results will limit progress to
incremental improvement. There
is no substitute for measuring actual
outcomes, whose principal
purpose is not comparing providers
but enabling innovations
in care. Without such a feedback
loop, providers lack the requisite
information for learning and improving.
(Further details about
measuring value are contained
in a framework paper, “Value in
Health Care,” in Supplementary
Appendix 1, available with the full
text of this article at NEJM.org.)
Measuring, reporting, and comparing
outcomes are perhaps the
most important steps toward rapidly
improving outcomes and making
good choices about reducing
costs.4 Systematic, rigorous outcome
measurement remains rare,
but a growing number of examples
of comprehensive outcome
measurement provide evidence of
its feasibility and impact.
What Is Value in Health Care?
The New England Journal of Medicine
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n engl j med 363;26 nejm.org december 23, 2010
PERSPECTIVE
2479
Determining the group of relevant
outcomes to measure for
any medical condition (or patient
population in the context of primary
care) should follow several
principles. Outcomes should include
the health circumstances
most relevant to patients. They
should cover both near-term and
longer-term health, addressing a
period long enough to encompass
the ultimate results of care.
And outcome measurement should
include sufficient measurement of
risk factors or initial conditions
to allow for risk adjustment.
For any condition or population,
multiple outcomes collectively
define success. The complexity
of medicine means that
competing outcomes (e.g., nearterm
safety versus long-term functionality)
must often be weighed
against each other.
The outcomes for any medical
condition can be arrayed in a
three-tiered hierarchy (see Figure
1), in which the top tier is generally
the most important and
lower-tier outcomes involve a progression
of results contingent on
success at the higher tiers. Each
tier of the framework contains
two levels, each involving one or
more distinct outcome dimensions.
For each dimension, success
is measured with the use of
one or more specific metrics.
Tier 1 is the health status
that is achieved or, for patients
with some degenerative conditions,
retained. The first level,
survival, is of overriding importance
to most patients and can
be measured over various periods
appropriate to the medical condition;
for cancer, 1-year and 5-year
survival are common metrics.
Maximizing the duration of survival
may not be the most important
outcome, however, especially
for older patients who may
weight other outcomes more
heavily. The second level in Tier
1 is the degree of health or recovery
achieved or retained at the
peak or steady state, which normally
includes dimensions such
as freedom from disease and relevant
aspects of functional status.
Tier 2 outcomes are related to
the recovery process. The first level
is the time required to achieve
recovery and return to normal or
best attainable function, which
can be divided into the time
needed to complete various phases
of care. Cycle time is a critical
outcome for patients — not a
secondary process measure, as
some believe. Delays in diagnosis
or formulation of treatment plans
can cause unnecessary anxiety.
Reducing the cycle time (e.g.,
time to reperfusion after myocardial
infarction) can improve
functionality and reduce complications.
The second level in Tier 2
is the disutility of the care or
treatment process in terms of discomfort,
retreatment, short-term
complications, and errors and
their consequences.
Tier 3 is the sustainability of
health. The first level is recurWhat
Is Value in Health Care?
Disutility of care or treatment process
(e.g., diagnostic errors, ineffective care,
treatment-related discomfort, complications,
adverse effects)
Sustainability of health or recovery
and nature of recurrences
Long-term consequences of therapy
(e.g., care-induced illnesses)
Survival
Degree of health or recovery
Time to recovery and time to return
to normal activities
Tier 1
Health status
achieved
or retained
Tier 2
Process
of recovery
Tier 3
Sustainability
of health
Recurrences
Care-induced
illnesses
Figure 1. The Outcome Measures Hierarchy.
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PERSPECTIVE
2480 n engl j med 363;26 nejm.org december 23, 2010
rences of the original disease or
longer-term complications. The
second level captures new health
problems created as a consequence
of treatment. When recurrences
or new illnesses occur, all outcomes
must be remeasured.
With some conditions, such as
metastatic cancers, providers may
have a limited effect on survival
or other Tier 1 outcomes, but they
can differentiate themselves in
Tiers 2 and 3 by making care
more timely, reducing discomfort,
and minimizing recurrence.
Each medical condition (or
population of primary care patients)
will have its own outcome
measures. Measurement efforts
should begin with at least one
outcome dimension at each tier,
and ideally one at each level. As
experience and available data infrastructure
grow, the number of
dimensions (and measures) can
be expanded.
Improving one outcome dimension
can benefit others. For
example, more timely treatment
can improve recovery. However,
measurement can also make explicit
the tradeoffs among outcome
dimensions. For example,
achieving more complete recovery
may require more arduous
treatment or confer a higher
risk of complications. Mapping
these tradeoffs, and seeking
ways to reduce them, is an essenWhat
Is Value in Health Care?
Disutility of care or treatment process
(e.g., diagnostic errors, ineffective care,
treatment-related discomfort, complications,
adverse effects)
Sustainability of health or recovery
and nature of recurrences
Long-term consequences of therapy
(e.g., care-induced illnesses)
Survival
Degree of health or recovery
Time to recovery and time to return
to normal activities
Pain
Length of hospital stay
Infection
Pulmonary embolism
Deep-vein thrombosis
Myocardial infarction
Immediate revision
Delirium
Maintained functional level
Ability to live independently
Need for revision or reoperation
Loss of mobility due to inadequate
rehabilitation
Risk of complex fracture
Susceptibility to infection
Stiff knee due to unrecognized
complication
Regional pain syndrome
Mortality rate (inpatient)
Functional level achieved
Pain level achieved
Extent of return to physical activities
Ability to return to work
Time to treatment
Time to return to physical activities
Time to return to work
Nosocomial infection
Nausea or vomiting
Febrile neutropenia
Limitation of motion
Breast reconstruction discomfort or
complications
Depression
Cancer recurrence
Consequences of recurrence
Sustainability of functional status
Incidence of second primary cancers
Brachial plexopathy
Premature osteoporosis
Survival rate (1-yr, 3-yr, 5-yr, longer)
Remission
Functional status
Breast preservation
Breast-conservation-surgery outcomes
Time to remission
Time to achievement of functional
and cosmetic status
Dimensions
Primary Acute Knee Osteoarthritis
Breast Cancer Requiring Replacement
Figure 2. Outcome Hierarchies for Breast Cancer and Knee Osteoarthritis.
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PERSPECTIVE
2481
tial part of the care-innovation
process.
Figure 2 illustrates possible outcome
dimensions for breast cancer
and acute knee osteoarthritis requiring
knee replacement. Most
current measurement efforts fail
to capture such comprehensive
sets of outcomes, which are needed
to fully describe patients’ results.
No organization I know of
systematically measures the entire
outcome hierarchy for the
medical conditions for which it
provides services, though some
are making good progress. (Further
details, including risk adjustment,
are addressed in a framework
paper, “Measuring Health
Outcomes,” in Supplementary Appendix
2, available at NEJM.org.)
The most important users of
outcome measurement are providers,
for whom comprehensive
measurement can lead to substantial
improvement.5 Outcomes
need not be reported publicly to
benefit patients and providers, and
public reporting must be phased
in carefully enough to win providers’
confidence. Progression to
public reporting, however, will accelerate
innovation by motivating
providers to improve relative to
their peers and permitting all
stakeholders to benefit fully from
outcome information.
Current cost-measurement approaches
have also obscured value
in health care and led to costcontainment
efforts that are incremental,
ineffective, and sometimes
even counterproductive.
Today, health care organizations
measure and accumulate costs
around departments, physician
specialties, discrete service areas,
and line items such as drugs and
supplies — a reflection of the
organization and financing of
care. Costs, like outcomes, should
instead be measured around the
patient. Measuring the total costs
over a patient’s entire care cycle
and weighing them against outcomes
will enable truly structural
cost reduction, through steps
such as reallocation of spending
among types of services, elimination
of non–value-adding services,
better use of capacity,
shortening of cycle time, provision
of services in the appropriate
settings, and so on.
Much of the total cost of caring
for a patient involves shared
resources, such as physicians,
staff, facilities, and equipment.
To measure true costs, shared resource
costs must be attributed
to individual patients on the basis
of actual resource use for their
care, not averages. The large cost
differences among medical conditions,
and among patients with
the same medical condition, reveal
additional opportunities for cost
reduction. (Further aspects of cost
measurement and reduction are
discussed in the framework paper
“Value in Health Care.”)
The failure to prioritize value
improvement in health care delivery
and to measure value has
slowed innovation, led to illadvised
cost containment, and
encouraged micromanagement of
physicians’ practices, which imposes
substantial costs of its
own. Measuring value will also
permit reform of the reimbursement
system so that it rewards
value by providing bundled payments
covering the full care cycle
or, for chronic conditions, covering
periods of a year or more.
Aligning reimbursement with value
in this way rewards providers
for efficiency in achieving good
outcomes while creating accountability
for substandard care.