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H E A L T H T R A C K I N G : T R E N D S W E B E X C L U S I V E
7 February 2003
Health Spending Projections For 20022012
Spending on hospital services
and prescription drugs continues to drive
health cares share of the economy upward.
Stephen Heffler, Sheila Smith, Sean Keehan, M. Kent Clemens,
Greg Won, and Mark Zezza
ABSTRACT:
We forecast a slowdown in national health spending growth in 2002 and 2003,
reflecting slower projected Medicare and private personal health spending growth.
These factors outweigh higher projected Medicaid spending growth, caused by
weak labor markets, and an expectation of continued high private health insurance
premium inflation related to the underwriting cycle. Over the entire projection
period, national health spending growth is still expected to outpace economic
growth. The result is that the health share of gross domestic product is projected
to increase from 14.1 percent in 2001 to 17.7 percent in 2012.
Between 2002 and 2012 national health spending is projected to grow at an average
annual rate of 7.3 percent, reaching $3.1 trillion by 2012 (Exhibits
1 and 2).
This increase would bring health spending to approximately 17.7 percent of gross
domestic product (GDP) by 2012, up from its 2001 share of 14.1 percent (Exhibit
3).1 The short-term aggregate pattern of national
health spending growth is similar to our previous forecast, which showed growth
peaking in 2001.2 After increasing 8.7 percent in
2001, national health spending growth is projected to be 8.6 percent in 2002
and 7.3 percent in 2003. This slowdown would follow five consecutive years of
accelerating spending growth.
The overall similarity between our current and previous short-term health spending
growth projections masks changes in the composition of growth. First, economywide
consumer price inflation for 2002 is projected to be 1.1 percent, well below
the 2.3 percent projected last year. All other things being equal, this would
result in a lower projection of health spending growth. However, we project
this effect to be partly offset by faster medical price inflation above overall
price inflation and more rapid growth in utilization of services.3
A second near-term compositional change since our last forecast is a shift toward
public spending in 2002 and 2003. Stronger near-term growth in use of care is
partially driven by fast growth in Medicaid enrollment, offsetting a decline
in private health insurance enrollment (Exhibit
4). The changes in private health insurance and Medicaid enrollment projected
for 2002 are related, reflecting higher premiums and softer labor markets. Stronger
projected Medicaid enrollment growth produces a Medicaid share of total health
spending of 16.7 percent in 2003, compared with 16.1 percent projected last
year.
A third revision to projected patterns of growth involves the role of the private
health insurance underwriting cycle.4 The differential
between private insurance premiums and medical benefits (net cost of insurance)
per enrollee is an indicator of this cycle and is a key determinant of health
insurers profitability.5 Consistent with recent
data, which indicate a sharp increase in this differential, we project that
the net cost of insurance will rise from 11.9 percent in 2001 to 14.0 percent
in 2002.6 Thus, while per enrollee cost growth is
expected to decelerate from 10.8 percent in 2001 to 8.9 percent in 2002, per
enrollee premium growth is projected to accelerate from 11.1 percent to 11.6
percent (Exhibit
5).
For 2004 and beyond, the pattern of national health spending growth has been
slightly altered, primarily reflecting a higher forecast for real GDP and disposable
income growth.7 Last year we projected slightly
higher national health spending growth in 2004 followed by a period of nearly
continuous deceleration. This year our forecast shows an extended period of
modest acceleration in growth until 2007, and then a more gradual slowing to
a 2011 growth rate that is similar to last years forecast (6.8 percent
this year versus 6.7 percent last year).8 This pattern
of growth, together with revised historical GDP data, results in a projected
national health spending share of GDP that is only slightly higher than we forecasted
last year.9 We now expect national health spending
to equal about 17.4 percent of GDP in 2011, compared with last years forecast
of 17.0 percent.
The national health spending projections are generated within a framework that
incorporates actuarial, econometric, and judgmental inputs. Current law
projections for Medicare are based on the 2002 Medicare Trustees Report; Medicaid
spending projections are consistent with Trustees Report assumptions.10
Projections for private health spending are based on an econometric model.11
Both the private and public projections use the economic and demographic assumptions
from the 2002 Medicare Trustees Report, updated to reflect the latest historical
data.12 Our projections are conditional on assumptions
about macroeconomic conditions and health sector parameters, with the degree
of uncertainty increasing with the projection horizon. We qualify our projections,
then, subject to these inherent uncertainties and how they might affect our
results.
The Funding Outlook
Private-sector spending.
Last year we expected that private personal health care spending growth would
peak in 2002, but the latest outlook indicates that the peak actually occurred
in 2001. After increasing 7.9 percent in 2001, private personal health care
spending growth is now projected to fall to 7.4 percent in 2002 and eventually
decline to 6.1 percent in 2012. We ascribe much of the long-term deceleration
to slowing real per capita income growth, an increase in the uninsured population,
and increased consumer cost sharing.
In the near term the forecast revision reflects three major factors. First,
the Commerce Departments Bureau of Economic Analysis (BEA) released downward
revisions to historical disposable personal income. Since changes in income
have a lagged effect in our models, the BEA revisions result in lower projected
near-term health spending growth. Second, the Labor Departments Bureau
of Labor Statistics (BLS) health-sector payroll data for the first ten months
of 2002 show a deceleration in growth relative to 2001, suggesting, all other
things held constant, a slowing in health expenditure growth.13
Third, published BLS data for 2002 indicate slower medical price growth than
was projected last year.14
An important influence on our private health spending projections is overall
economic growth as measured by a moving average of growth in real per capita
disposable personal income. This variable has been included in our model since
the inception of the current projections methodology in 1998. The lagged income
effect on health spending is a function of the role of third-party payers, which
largely insulate health expenditures from simultaneous changes in household
income. Since consumers generally do not pay for most of their medical expenses
directly, their purchasing decisions are not immediately affected by short-term
variations in income. Thus, the effects of income not only reflect the direct
impact of consumers choice of medical care but also are intended to indirectly
capture a large range of structural changes in the financing and delivery of
care, which occur in response to changes in economic growth.
One example of such an effect was the introduction and spread of managed care
in the mid-1990s, which was partly a lagged response to rapid increases in health
spending relative to income in the early part of that decade. Similarly, the
recent greater willingness to pay for medical careevidenced by a shift
toward less restrictive forms of coverage, the passage of a range of patient
protection laws at the state and federal levels, and the passage of legislation
more generous to providerscan be seen as a response to rising real income
growth in the mid- to late 1990s.
In response to the recent economic slowdown, employers have raised employee
cost-sharing requirements, both as a condition of coverage and at the point
of service.15 Also, prescription drug plans are
making greater use of tiered copayments as a tool to manage demand. Other responses
include the introduction of new disease management programs for the chronically
ill, retrenchment in coverage of retirees and part-time employees, legislation
to curb malpractice awards, and the introduction of defined-contribution employer
health plans.16 Although future structural changes
are difficult to predict, our projections suggest that over time consumers and
employers will act through a range of channels to restrain costs as income growth
slows.
Private health insurance
enrollment. Enrollment
growth peaked in 2000 as a result of stiff competition for workers and because
of employers reluctance to pass premium increases on to employees. Last
year we projected a deceleration in private health insurance enrollment growth
in 2001 because of the recession (although forecasted enrollment growth was
still positive), followed by a slight acceleration in anticipation of a modest
economic recovery. In fact, enrollment actually declined sharply in 2001, largely
because of weaker-than-expected employment growth and, to a lesser degree, double-digit
premium increases.17
The projected trend in private health insurance enrollment reflects cyclical
and long-term factors. In the near term we expect that enrollment will continue
to decline in 2002, reflecting the weak economy and continued premium inflation.
As in 2001, changes in employment patterns by sector in 2002 (through November)
suggest a decline in the privately insured population.
We expect enrollment growth to turn positive in 2003 and peak in 2005, as economic
growth accelerates and the underwriting cycle enters a downward phase. However,
we expect private enrollment as a fraction of the total population to fall throughout
the projection period, as health care costs grow faster than incomes, as the
composition of employment shifts to industries that tend to have less coverage,
and as the Medicare-eligible share of the population rises.18
The underwriting cycle.
Historically, the net cost of insurance as a share of total private health insurance
follows a cyclical path. Price competition during a soft market
leads to shrinking margins and, concomitantly, company insolvencies. This, in
turn, results in a hard market characterized by reduced competitive
pressures, rising premiums, and more stable profits.19
Hard markets have been typically short-lived, with the net cost ratio falling
sharply after a peak. The data also show that the amplitude of the cycles dampened
in the 1990s, relative to 19701990, coincident with the shift in enrollment
to managed care plans.
Our forecast suggests two changes to the recent historical pattern. First, we
project a rise in 2002 for the net cost of insurance as a share of premiums
to 14 percent, which is higher than any period in the 1990s but lower than the
hard markets observed in the pre managed care period. Our projection for
2002 shows a slowing in the rate of benefit growth, lower projected private
health insurance enrollment, increasing profits for many of the larger health
insurers, and accelerating premium growth.20
Second, we expect this hard market to exhibit a more gradual softening than
has historically been the case. More generally, we anticipate a much weaker
underwriting cycle in the future, reflecting anecdotal evidence of reduced competition
(with fewer small insurers present, as a result of industry consolidation) and
more savvy management that is less likely to overreact to cyclical swings (especially
during hard markets).
We expect that out-of-pocket spending will continue to grow more rapidly in
the projection period than in the managed care period (19931997) because
of efforts by employers and insurers to share costs with employees. At the same
time, the growth rate of total health spending is expected to be higher than
that of out-of-pocket spending. Hence, the out-of-pocket share of total health
expenditures is projected to fall 1.2 percentage points, from 14.1 percent in
2002 to 12.9 percent in 2012. By way of comparison, this share fell 4.2 percentage
points between 1991 and 2001 and 4.0 percentage points between 1980 and 1990.
Public-sector spending.
Public health care spending growth accelerated sharply in 2001, increasing 9.4
percent compared with 7.5 percent in 2000 (Exhibit
6). This growth was primarily attributable to large Medicaid enrollment
growth and increased Medicare payments to providers, reflecting provisions introduced
under the Medicare, Medicaid, and SCHIP Balanced Budget Refinement Act (BBRA)
of 1999 and the Medicare, Medicaid, and SCHIP Benefits Improvement and Protection
Act (BIPA) of 2000. Based on current law, we project that Medicare spending
growth will slow in 2002 (5.2 percent) and 2003 (3.0 percent) because of the
expiration of many of the provisions of the BBRA and BIPA, and reduced reimbursement
per service for physicians under the sustainable growth rate (SGR) system. Because
of this system and its cumulative nature, physician reimbursement per service
is projected to decrease from 2002 to 2006. This pattern of physician spending
differs from last years projection; the change comes primarily from BEA
revisions to the historical GDP, revisions to projected economic data, and updates
to the Medicare data that track physician spending. The negative physician updates
have attracted the attention of Congress, but as yet no legislation has been
passed to alter the outlook. In the later part of the forecast, Medicare is
projected to return to higher levels of growth, reaching 7.4 percent in 2012.
Medicaid spending also accelerated in 2001, growing at 10.8 percent. We project
that this acceleration will continue into 2002, to 12.1 percent. High Medicaid
spending growth is largely attributable to an 8.5 percent increase in enrollment
in 2001 and a 5.8 percent increase in 2002 caused by the slowdown in economic
growth. After 2002, Medicaid spending growth is expected to remain strong but
to slow to 8.5 percent by 2012.
The Outlook For Health Services Spending
Recent historical trends in the major sectors are expected to continue in the
near-term projection period. Our projections for 2002 suggest that hospital
spending growth, driven by higher hospital labor costs and increased hospital
leverage in pricing, will remain the most important driver of health spending
growth. Hospital spending accounts for 27.1 percent of the projected increase
in health spending in 2002, while prescription drug spending and physician spending
account for 16.3 percent and 16.5 percent, respectively. Spending on drugs,
the fastest-growing sector, is expected to continue its recent deceleration,
in part because of the increasingly broad use of tiered copayments and fewer
new drug introductions. For physicians, current-law Medicare payment updates
under the SGR system are projected to slow total physician spending growth.
Hospitals.
Hospital spending growth accelerated sharply in 2001, to 8.3 percent (from 5.8
percent growth in 2000), and is projected to slow slightly to 7.4 percent in
2002 (Exhibit
7). The near-term pattern of growth is largely attributable to Medicare
hospital spending, which grew 7.2 percent in 2001 but is projected to decelerate
to 5.7 percent in 2002 and 2.9 percent in 2003. The dominant influence on this
pattern of growth has been the effects of the Balanced Budget Act (BBA) of 1997
and subsequent legislation (the BBRA and BIPA) that softened its impact. Key
changes projected for hospitals in 2002 and 2003 are concentrated in hospital-based
home health and skilled nursing facilities (SNFs). In contrast, acceleration
in Medicaid hospital spending largely reflects current and projected rapid growth
in enrollment propelled by rising unemployment. After increasing 10.2 percent
in 2001, Medicaid hospital spending is projected to grow 11.9 percent in 2002.
Private spending growth for hospital services has been accelerating consistently
since its trough of 1.0 percent in 1994. Growth was 7.8 percent in 2001,
and similar rates of growth are expected in both 2002 and 2003. The recent acceleration
in hospital spending per enrollee by private health insurance has been quite
rapid (with growth increasing from 6.3 percent in 2000 to 9.9 in 2001) and reflects
the consolidation of hospitals in many local markets and a trend toward less
restrictive networks of providers. Per enrollee hospital spending growth is
projected to ease to 8.2 percent in 2002 and 8.0 percent in 2003.
The recent acceleration has been particularly rapid for inpatient hospital spending,
narrowing the difference between inpatient and outpatient spending growth. Community
hospital outpatient spending grew 7.2 percentage points faster than inpatient
spending in 1995, but just 3.1 percentage points faster in 2000.21
We project a continued convergence of inpatient and outpatient spending growth
rates, so that by 2012 outpatient spending grows just 1.1 percentage points
faster than inpatient spending.
We project private hospital spending growth to slow from 7.7 percent in 2003
to 5.0 percent in 2012, reflecting a growing acceptance of more restrictive
forms of coverage. In our model, the restrictiveness of managed care is represented
by the share of the privately insured population enrolled in health maintenance
organizations (HMOs), which is used as a proxy for the effects of all mechanisms
of managing care.22 Recent research continues to
confirm HMOs cost-restraining influence on hospital use and spending growth.23
The decline in HMO enrollment between 1999 and 2001, and the associated shift
toward looser forms of managed care, is believed to have played a role in accelerating
utilization per capita and hospital price inflation for this period. In the
long run, we project that a slowing economy will resurrect pressures captured
in part by the HMO proxyto restrain hospital spending growth.
Prescription drugs.
Similar to last year, our drug spending projections show a continued deceleration
in the rate of growth, moving from 15.7 percent for 2001 to 14.3 percent in
2002 and reaching 9.2 percent by 2012. The turning point for prescription drug
spending growth came in 1999, preceding the projected peak for total national
health spending growth by two years. The deceleration in growth has been caused
primarily by the introduction of tiered-payment schemes and fewer recent blockbuster
drug introductions, and it is expected to continue as a result of the expansion
of these schemes and the introduction of other forms of cost sharing.
We project that drug spending growth will increase at an average annual rate
of 11.1 percent between 2002 and 2012, which exceeds total health spending by
3.8 percentage points per year, on average. By 2012 we project that prescription
drug expenditures will account for 14.5 percent of total health expenditures;
in 2001 the share was 9.9 percent.
The projected growth path of drug spending is influenced by a number of factors,
including real disposable personal income, drug prices relative to overall consumer
prices, direct-to-consumer (DTC) advertising, and new drug introductions.24
The impact of higher drug prices will be the strongest between 2002 and 2004,
when drug price growth is projected to be 3.2 percentage points per year greater,
on average, than overall consumer prices. For 2005 through 2012 we project the
difference between drug and overall price growth to average 1.6 percentage points
per year. Spending for DTC advertising grew at an average annual rate of 44.9
percent from 1995 through 2000.25 However, in 2001
it grew at only 9.4 percent and is expected to decelerate throughout the projection
period. New drug introductions are expected to grow steadily but at a slower
rate than we anticipated last year, as Food and Drug Administration (FDA) approval
times have increased and the number of new drug applications has fallen below
expectations.26
There are a number of important factors affecting these prescription drug projections.
Studies have shown that use of prescription drugs has been rising recently because
of an increased number of people affected by chronic conditions and because
of doctors prescribing more drugs per office visit.27
The result is that use is increasing for all age groups. In addition, the expansion
of state prescription drug programs could further increase public spending for
prescription drugs. However, patents for several blockbuster drugs are scheduled
to expire during the projection period. If the majority of the users of these
drugs switch to the less expensive generic alternative, spending in those therapeutic
classes may fall. Also, three-tier drug plans have shifted more costs to consumers
and encouraged the use of generic drugs and brand- name drugs on the formulary.
Since insurance companies succeeded in slowing use after implementing these
plans, some may try other forms of cost sharing, such as substantially raising
the copayment for brand-name drugs (the third tier) or creating four- or five-tier
drug plans. While many of the factors likely to influence prescription drug
spending over the next decade work in opposite directions, our projections implicitly
attempt to take these forces into account.
Physician and clinical services.
Historically, spending for physician and clinical services has grown at a rate
roughly similar to that of total health spending, and the same pattern is expected
to occur during the forecast period. The average annual growth between 2002
and 2012 is projected to be 6.8 percent for physician services, relative to
the corresponding 7.3 percent growth for total health spending.
For 2002 through 2005 this years forecast of the growth in physician spending
is much slower than last years was. Medicare physician spending growth
is low in the beginning of the forecast period because of the SGR system, which
ties physician spending to economic growth. Slower private physician spending
for the near term is mainly the result of slower disposable personal income
growth in the recent historical period. For 2005 through 2012 we project physician
spending growth to accelerate faster in this years projections than in
last years, primarily because of higher projected disposable personal
income growth. The continued shift of care to other professional services, negative
updates to the Medicare physician payment rates, and faster growth in other
sectors such as prescription drugs are all expected to contribute to the slow
continued decline in physician spending as a share of total health care spending.
Quite a bit of uncertainty exists surrounding the factors that might influence
physician spending. It is unclear how the trends in prescription drug spending
will affect the number of physician office visits. The implementation of consumer-driven
health care tools (such as tiered plans, concierge service, information access
and delivery tools available through the Web, and portable and self-administered
medical devices) that are aimed at providing better-value, more efficient health
care may have strong influences on physician spending. In the past, changes
in how health care services are distributed typically emanated from pressure
being applied by third-party payers, such as managed care organizations and
government. The need to constrain and reduce health care costs often motivated
their efforts. It is not clear whether consumers, with an increased role in
the distribution of health care services, will have the same motivation and
impact.28
Both the recently released historical health spending estimates and this set
of projections have highlighted the enormous pressures mounting on our health
care system. Private health insurance premiums are rising at rapid rates, federal
and state budget shortfalls exist, a softer labor market has reduced the number
of people with private insurance and has increased Medicaid enrollment, and
provider costs are continuing to rise. These trends have the unique, although
not unparalleled, impact of affecting all of the relevant partiesfrom
payers to providers to employers to consumersat the same time.
Experience indicates that changes in the mechanisms of payment and delivery
of care, as well as consumers preferences and public sentiment, will result
in a slowdown in growth, temporarily alleviating some of these pressures. However,
experience also indicates that society is likely to be willing to allocate more
of each dollar of income to health care. We project both of these outcomes over
the next decade: national health spending growth slowing from 8.7 percent in
2001 to 6.7 percent in 2012, and the share of GDP accounted for by health care
increasing from 14.1 percent in 2001 to 17.7 percent in 2012. The intriguing
part of the next decade may be where it leaves us, since the baby-boom generation
will begin to become eligible for Medicare at the end of the projection period,
and an unparalleled set of pressures on the system is likely to develop.
The authors thank Dirk Hoffman, Mary Lee Seifert, and Art Sensenig for their
assistance in producing these projections. They also thank Cathy Cowan, Cathy
Curtis, Rick Foster, Mark Freeland, Katie Levit, John Poisal, and anonymous
peer reviewers for their helpful comments. The opinions expressed here are the
authors and do not necessarily represent those of the Centers for Medicare
and Medicaid Services.
NOTES
1. K. Levit et al., Trends in U.S. Health Care Spending,
2001, Health Affairsm(Jan/Feb 2003): 154164.
2. S. Heffler et al., Health Spending Projections for
20012011: The Latest Outlook, Health Affairs (Mar/Apr 2002):
207218.
3. In this context, utilization refers to volume
of services, service mix and intensity, population, demographics, and measurement
error.
4. The underwriting cycle refers to the cyclical pattern
of underwriting profits, defined as profitability exclusive of investment
income. J. Gabel et al., Tracing the Cycle of Health Insurance,
Health Affairs (Winter 1991): 4861.
5. The net cost of insurance includes administrative costs,
change in reserves, rate credits and dividends, premium taxes, and profits or
losses.
6. J. Gabel et al., Job-Based Health Benefits in 2002:
Some Important Trends, Health Affairs (Sep/Oct 2002): 143151.
7. A projection for disposable personal income consistent with
the economic assumptions from the 2002 Medicare Trustees Report is generated
using the University of Maryland Long Term Inter-Industry Forecasting Tool (LIFT).
For this period (20042012), real GDP growth is projected to be, on average,
0.5 percentage points per year above last years projection, while real
disposable personal income growth is projected to be higher by 0.9 percentage
points per year.
8. The impact of demographic changes during our projection period
is not a major driver of overall health care spending growth. There is, however,
a mixed effect on private and public spending. Private health insurance enrollees
are getting older, while Medicare beneficiaries are getting younger.
9. In 2001 the GDP growth rate was 0.3 percent, not the 1.0
percent that we projected last year. The difference is mostly accounted for
by substantial revisions to the quarterly GDP figures from the Bureau of Economic
Analysis, National Income and Product Accounts, 31 July 2002, www.bea.gov/bea/newsrel/gdp202a.pdf
(6 January 2003).
10. Boards of Trustees, 2002 Annual Report of the Boards
of Trustees of the Federal Hospital Insurance Trust and Federal Supplementary
Medical Insurance Trust Funds, 26 March 2002, cms.hhs.gov/publications/trusteesreport/2002/tr.pdf
(6 January 2003).
11. The results of our aggregate model of overall private personal
health care spending are reconciled with separate models for private spending
in each sector. For a more complete description of our projections model, see
Centers for Medicare and Medicaid Services, Projections of National Health
Expenditures: Methodology and Model Specification, 17 July 2002, cms.hhs.gov/statistics/nhe/projections-methodology
(6 January 2003).
12. We use currently available historical data (as of November
2002) and updated near-term forecasts to transition to the 2002 Medicare Trustees
Report assumptions.
13. U.S. Bureau of Labor Statistics, The Employment Situation:
November 2002, 1 November 2002, www.bls.gov/news.release/archives/empsit_12062002.pdf
(6 January 2003).
14. BLS, Producer Price Indexes: November 2002,
15 November 2002, www.bls.gov/news.release/archives/ppi_12132002.pdf
(6 January 2003).
15. L.A. McCormack et al., Trends in Retiree Health Benefits,
Health Affairs (Nov/Dec 2002): 169176.
16. J. Gabel, Erosion of Private Health Insurance Coverage
for Retirees, April 2002, www.cmwf.org/programs/medfutur/gabel_retiree_cb_506.pdf
(6 January 2003).
17. The insured population is benchmarked to the 1997 Health
Interview Survey, as reported in Centers for Disease Control and Prevention,
Summary Health Statistics for the U.S. Population: National Health Interview
Survey, 1998, October 2002, www.cdc.gov/nchs/data/series/sr_10/sr10_207.pdf
(6 January 2003), and escalated using the change in the insured population from
the Census Bureau, as reported in U.S. Census Bureau, Health Insurance Coverage,
2001, September 2002,
www.census.gov/prod/2002pubs/p60-220.pdf
(6 January 2003).
18. The shift to Medicare does not imply a one-to-one reduction
in private health insurance enrollment, since a large portion of Medicare enrollees
carry supplemental coverage.
19. Gabel et al., Tracing the Cycle of Health Insurance.
20. M. Freudenheim, The Healthier Side of Health Care,
New York Times, 23 October 2002; and Henry J. Kaiser Family Foundation,
Trends and Indicators in the Changing Health Care Marketplace, 2002Chartbook
(Menlo Park, Calif.: Kaiser Family Foundation, 2002).
21. American Hospital Association, U.S. Registered Community
Hospitals, in Hospital Statistics (Chicago: AHA, various years).
Total hospital spending was derived from the National Health Accounts; the split
between inpatient and outpatient spending was obtained from the AHA Annual Survey
of Hospitals.
22. We recognize that this proxy (the only comparable series
for which a consistent history is available) may not capture all of the managed
care effects, as rates of growth in HMO enrollment diverge from those of preferred
provider organizations (PPOs), and as the characteristics of forms of HMOs and
PPOs have tended to change and converge over time. For this reason, we have
attempted to adjust our projections to reflect these trends based on supplemental
data and research.
23. R.H. Miller and H.S. Luft, HMO Plan Performance Update:
An Analysis of the Literature, 19972001, Health Affairs (July/Aug
2002): 6386.
24. For a more complete description of our drug model, see
CMS, Types of Service, 17 July 2002,
cms.hhs.gov/statistics/nhe/projections-methodology/default-03.asp
(6 January 2003).
25. National Institute for Health Care Management, Prescription
Drugs and Mass Media Advertising, 2000, November 2001, www.nihcm.org/DTCbrief2001.pdf
(6 January 2003).
26. M. Kaufman, Decline in New Drugs Raises Concerns,
Washington Post, 18 November 2002.
27. NIHCM, Prescription Drug Expenditures in 2001: Another
Year of Escalating Costs, 6 May 2002, www.nihcm.org/spending2001.pdf
(6 January 2003). Chronic conditions have affected utilization in two ways:
more people are being diagnosed with these conditions, and the thresholds for
treatment of these conditions have been lowered.
28. D.R. Masys, Effects of Current and Future Information
Technologies on the Health Care Workforce, Health Affairs (Sep/Oct
2002): 3341; Employee Benefit Research Institute, Consumer-Driven Health
Benefits: A Continuing Evolution? (Washington: EBRI, 2002); and S. Stevens,
Docs-on-the-Net Consults Offer Second Opinions, Physicians
Financial News 20, no. 3 (2002): 1011.
The authors are all in the
Office of the Actuary Centers for Medicare and Medicaid Services, in Baltimore.
Stephen Heffler is deputy director of the National Health Statistics Group.
Sheila Smith, Sean Keehan, and Greg Won are economists; Kent Clemens is an actuary;
and Mark Zezza is a statistician.
©2003 Project HOPEThe People-to-People Health Foundation, Inc.
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