Research Report

The Scope of Diagnosed Dementia in the United States

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Executive Summary

The Dementia DataHub analyzes Medicare Fee-for-Service claims and Medicare Advantage encounter data to estimate and report the prevalence, incidence, mortality, rate of COVID-19 infections, and payments related to diagnosed dementia (including Alzheimer’s Disease and related dementias) at the national, state, and county level. In the future, the Dementia DataHub will expand to include additional data sources and outcome measures.

Among Medicare beneficiaries enrolled in January 2020, over 8.1 million had diagnostic or drug code evidence of either dementia or a less certain diagnosis that can sometimes be used as a diagnosis code for dementia. Of these beneficiaries, 4.3 million (7.2 percent of all Medicare beneficiaries) were classified by our system's case definitions as highly likely dementia cases, another 1.1 million (1.9 percent of all Medicare Beneficiaries) were classified by our system's case definitions to as likely to have dementia, and an additional 2.6 million (4.3 percent of all Medicare beneficiaries) were categorized by our system’s cases definitions as possibly having dementia. It’s important to note that beneficiaries in the possible category may have dementia or they may not, and additional research is necessary to understand all our system’s case definitions better. Beneficiaries in each of our system’s case definition categories were older, frailer, more likely to be female, use long-term care, and die than those beneficiaries who did not meet a case definition. These differences persisted after age-standardization.*

The Dementia DataHub provides data visualizations and public use files with information about the number and percentage of beneficiaries in each category that met each case definition by demographic and geographic strata. This system does not capture people without diagnostic or drug code evidence recorded by Medicare including people who may have been diagnosed outside of Medicare and people who have not received a diagnosis.

Research regarding differences by demographics and geography is ongoing. Research regarding the associations of area-level variables such as health system factors and social determinants of health with differences in dementia outcomes measured across states and counties may provide insights into why diagnosis rates of outcomes vary by place.

* Gianattasio, K. Z., Wachsmuth, J., Murphy, R., Hartzman, A., Montazer, J., Cutroneo, E., Wittenborn, J., Power, M. C., & Rein, D. B. (2024). Diagnostic code case definitions for Alzheimer’s disease and related dementias: A systematic review and application using Medicare data. JAMA Network Open. https://doi.org/10.1001/jamanetworkopen.2024.27610

7%
of Medicare beneficiaries are highly likely to have dementia
61%
of Americans with dementia may be undiagnosed
73%
of Medicare beneficiaries in long-stay nursing care are highly likely to have dementia
25%
of Medicare beneficiaries with highly likely dementia died in 2020

  • In 2020 across all ages, an estimated 4.4 million Medicare beneficiaries were characterized as “Highly Likely”, 1.1 million were “Likely”, and 2.6 million were “Possible” to have dementia according to our system's case definitions, corresponding to 7.1 percent, 1.9 percent, and 4.2 percent of all Medicare Beneficiaries.
  • Among Medicare beneficiaries ages 65 and older, 7.9 percent were categorized as prevalent cases of “Highly Likely”, 2.0 percent were categorized as “Likely”, and 4.3 percent were categorized as “Possible” to have dementia. 
  • The prevalence of “Highly Likely” dementia was 6.8 percent among Medicare fee-for-service beneficiaries as compared to 7.7 percent among Medicare Advantage beneficiaries.
  • The prevalence of “Highly Likely” dementia was 8.2 percent among women as compared to 5.8 percent among men. Some of this difference is explained by the different age distributions of men and women within Medicare.*
  • The prevalence of “Highly Likely” dementia was highest for Hispanics (8.2 percent), followed by African Americans (7.8 percent), Non-Hispanic Whites (7.1 percent), Asian or Pacific Islanders (6.6 percent), non-Hispanic Other races (6.4 percent), American Indian/Alaskan Native Natives (6.0 percent), and people of unknown race and ethnicity (2.1 percent). Some of these differences are explained by the different age distributions of different race and ethnicity groups within Medicare.*
  • Puerto Rico (10.6 percent), Florida (8.2 percent), Texas (8.1 percent), Connecticut (8.0 percent), and New York (7.9 percent) had the highest rates of “Highly Likely” dementia, and Idaho (5.3 percent), Montana (5.1 percent), Vermont (5.0 percent), Wyoming (4.9 percent), and Alaska (4.9 percent) had the lowest rates (excluding territories other than Puerto Rico).
  • Puerto Rico (16.9 percent), Mississippi (15.5 percent), Florida (15.5 percent), Texas (15.0 percent), and Arkansas (14.5 percent) had the highest rates of “Any Dementia” (including possible cases), and South Dakota (10.3 percent) Montana (9.9 percent), Vermont (9.9 percent) Alaska (9.4 percent), and Wyoming (9.4 percent) had the lowest rates.
  • The incidence of new cases of diagnosed dementia in 2020 in Medicare was 1.8 percent for “Highly Likely”, 0.9 percent for “Likely”, and 1.9 percent for “Possible”. 
  • For mortality, 23.1 percent of those classified as prevalent cases of “Highly Likely” dementia died in 2020, as compared to 13.3 percent of those classified as “Likely”, and 9.0 percent of those classified as “Possible”.
  • In 2020, 16.5 percent of those classified as prevalent cases of “Highly Likely” dementia were diagnosed with COVID-19, as compared to 9.8 percent of those classified as “Likely”, and 7.6 percent of those classified as “Possible”.
  • In 2020, all cause health expenditures among prevalent cases were similar across categories, among Medicare beneficiaries in fee-for-service Medicare (cost estimates are not available for Medicare Advantage). People in the “Highly Likely” category incurred an average of $26,714 in Medicare costs per beneficiary, as compared to $24,465 for “Likely”, and $23,185. For comparison, in 2019, all-cause expenditures for people who were not classified in any of our system’s dementia categories was approximately $11,232 (multiplying per beneficiary per month estimate by 12).*

* Gianattasio, K. Z., Wachsmuth, J., Murphy, R., Hartzman, A., Montazer, J., Cutroneo, E., Wittenborn, J., Power, M. C., & Rein, D. B. (2024). Diagnostic code case definitions for Alzheimer’s disease and related dementias: A systematic review and application using Medicare data. JAMA Network Open. https://doi.org/10.1001/jamanetworkopen.2024.27610

Background

The Dementia DataHub provides national, state, and county data measuring diagnosed dementia and dementia outcomes in Medicare data. Future updates to the system may include additional data sources. The project created and will validate and update case definitions to identify dementia using diagnosis and drug codes in billing claims and medical encounter data. The DataHub applies these case definitions to Medicare data to analyze and report national, state, and county measures of diagnosed dementia prevalence and incidence, and mortality, COVID-19 infections, and all-cause payments among people with prevalent dementia.

The Dementia DataHub is a joint effort led by NORC at the University of Chicago, with technical support from George Washington University’s Milken Institute School of Public Health and KPMG LLP. The DataHub is funded by the National Institutes on Aging through Grant R01-AG-075730. The contents are those of the author(s) and do not necessarily represent the official views of, nor an endorsement, by NIA/NIH, or the U.S. Government.

Dementia DataHub estimates should be considered provisional, pending revisions and adjudications of administrative data records, and possible future revisions or enhancements to the system’s dementia case definitions.


Case Definition

The Dementia DataHub developed case definitions based on diagnosis and prescription drug codes to identify people diagnosed with dementia. We reviewed existing case definitions and categorized them based on their frequency of inclusion in prior case definitions. Expert input was used to remove certain codes from the case definitions. We are conducting ongoing validation studies to assess the accuracy of these case definitions. Therefore, case definitions may be revised over time as new information becomes available.

  • Highly Likely Dementia is defined as a person having a dementia-specific diagnosis code on at least 2 separate dates over 3-year period.
  • Likely Dementia is defined as a person having a dementia-specific diagnosis code indicating dementia on only 1 date over 3-year period.
  • Possible Dementia is defined as a person having diagnosis codes that may indicate dementia over 3-year period, or a prescription drug indicated for dementia without a corresponding dementia diagnosis code. These people may have dementia, or they may not.
  • Any Dementia is defined as the sum of Highly Likely, Likely, and Possible dementia.

Methods

Developing Case Definitions

We developed our case definitions by aggregating codes used by 20 different previously published algorithms and the CMS Chronic Condition Warehouse definition, sorting by frequency of inclusion in prior case definitions, reviewing individual codes with clinical experts, and organizing codes into those that are directly related to dementia, Alzheimer's disease and other related dementias, and others that may indicate dementia but do not specifically state dementia or Alzheimer's disease. We used other Medicare evidence to provide support for these definitions. We published the methods for developing our case definition in JAMA Network Open on September 3, 2024.  

Data Sources

We used 100 percent of the 2018, 2019 and 2020 Medicare fee-for-service (FFS) inpatient, outpatient, carrier, Skilled Nursing Facility (SNF), Home Health Agency (HHA), and hospice claims; Medicare Advantage (MA) inpatient, outpatient, carrier, SNF, and HHA encounter data; and Medicare Part D Prescription Drug Event (PDE) data.

Inclusion Criteria

Our estimates include any Medicare beneficiaries with at least Part A (the premium-free Medicare benefit) enrollment who was alive and enrolled as of January 1, 2020. We excluded people with missing gender, and invalid US state or territory codes.

Analyzing Data

We applied the case definitions to included datasets using ICD-10 diagnosis codes and NDC drug codes in any position on the claim. We analyze and report outcomes by calendar year.

Suppression

To ensure the privacy of individuals in Medicare, we suppressed any data cell value with a numerator or denominator count that was less than 11.  We additionally suppressed related cells that could be used in combination to construct a cell count less than 11. Suppression is most extreme for results for the 0 to 64, and 65+ summary categories because wherever the 0-64 category is suppressed, the 65+ category must also be suppressed. 

Public Use Files

All data used in this site are available for independent analysis as a public use file. If you are interested in accessing the public use data, please email the project team at Dementiadatahub@norc.org.

Map Correlations

When using the “Add relationship” feature in the map, the map produces the Spearman rank correlation coefficient which measures the strength and direction of association between the rank order of the unsuppressed values of the outcome selected and the rank order of the relationship variable. This provides a rough measure of an obvious association between two variables. Users should be cautioned that correlations are not the same as causality. Further seemingly uncorrelated variables may be associated with each other using methods that do not assume a linear relationship between the two variables, and/or methods that control for the confounding effect of other variables.

Prevalence Tables

Prevalence of Diagnosed Dementia in Medicare

Total

Prevalence indicated by both percentage and (count)

 

All Claims & Encounter DataHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
Total7.12% (4,378,069)1.85% (1,137,560)4.22% (2,594,867)13.19% (8,110,496)

By Program

Program NameHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
Medicare FFS6.76% (2,494,415)1.62% (597,774)3.85% (1,420,636)12.23% (4,512,825)
Medicare Advantage7.66% (1,883,601)2.21% (543,441)4.76% (1,170,489)14.63% (3,597,531)

By Age

Age RangeHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
<652% (163,217)1.2% (97,930)3.61% (294,608)6.81% (555,756)
65+7.9% (4,212,980)1.95% (1,039,913)4.31% (2,298,474)14.17% (7,556,699)
65-691.67% (245,136)0.79% (115,962)2.13% (312,658)4.59% (673,757)
70-743.2% (478,765)1.25% (187,018)3.24% (484,749)7.69% (1,150,532)
75-797% (706,741)2.05% (206,974)4.87% (491,690)13.91% (1,404,396)
80-8413.35% (880,913)3.08% (203,237)6.5% (428,909)22.93% (1,513,058)
85+27.22% (1,903,700)4.72% (330,105)8.29% (579,782)40.23% (2,813,588)

By Gender

GenderHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
Male5.8% (1,631,260)1.74% (489,378)4% (1,125,007)11.54% (3,245,644)
Female8.23% (2,745,904)1.95% (650,609)4.4% (1,468,041)14.59% (4,867,890)

By Race/Ethnicity

Racial/Ethnic IdentificationHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
African American7.82% (507,610)2.18% (141,508)4.22% (273,928)14.22% (923,046)
American Indian/Alaskan Native6.04% (15,975)1.8% (4,761)4% (10,579)11.84% (31,314)
Asian or Pacific Islander6.63% (137,040)1.95% (40,306)3.16% (65,316)11.73% (242,455)
non-Hispanic White7.05% (3,190,797)1.76% (796,568)4.35% (1,968,790)13.15% (5,951,629)
non-Hispanic Other6.36% (32,453)1.76% (8,981)3.71% (18,931)11.83% (60,364)
Unknown2.11% (23,757)0.84% (9,458)2.39% (26,910)5.35% (60,238)
Hispanic (any race)8.17% (471,521)2.41% (139,090)4% (230,855)14.57% (840,888)

Incidence of Diagnosed Dementia in Medicare

Total

Prevalence indicated by both percentage and (count)

 

All Claims & Encounter DataHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
Total1.84% (1,131,411)0.94% (578,003)1.86% (1,143,709)4.65% (2,859,272)

By Program

Program NameHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
Medicare FFS1.69% (623,604)0.79% (291,507)1.68% (619,914)4.16% (1,535,025)
Medicare Advantage2.07% (509,015)1.17% (287,704)2.14% (526,228)5.38% (1,322,947)

By Age

Age RangeHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
<650.58% (47,333)0.51% (41,620)1.26% (102,827)2.34% (190,964)
65+2.04% (1,087,909)1.01% (538,621)1.95% (1,039,913)5% (2,666,443)
65-690.55% (80,733)0.4% (58,715)0.92% (135,045)1.86% (273,026)
70-740.96% (143,629)0.61% (91,265)1.3% (194,498)2.87% (429,392)
75-791.94% (195,868)1.04% (105,002)2.07% (208,994)5.05% (509,863)
80-843.42% (225,672)1.63% (107,557)3% (197,958)8.04% (530,527)
85+6.29% (439,907)2.55% (178,341)4.35% (304,228)13.19% (922,476)

By Gender

GenderHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
Male1.65% (464,065)0.89% (250,314)1.73% (486,565)4.27% (1,200,945)
Female2.01% (670,628)0.99% (330,309)1.97% (657,282)4.97% (1,658,219)

By Race/Ethnicity

Racial/Ethnic IdentificationHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
African American1.96% (127,227)1.08% (70,105)1.96% (127,227)5.01% (325,208)
American Indian/Alaskan Native1.65% (4,364)0.88% (2,327)1.69% (4,470)4.22% (11,161)
Asian or Pacific Islander1.65% (34,105)0.96% (19,843)1.33% (27,491)3.95% (81,645)
non-Hispanic White1.84% (832,775)0.9% (407,336)1.9% (859,931)4.64% (2,100,043)
non-Hispanic Other1.66% (8,470)0.88% (4,490)1.57% (8,011)4.11% (20,972)
Unknown0.62% (6,981)0.4% (4,504)0.95% (10,696)1.97% (22,181)
Hispanic (any race)2.1% (121,199)1.23% (70,988)1.82% (105,039)5.15% (297,225)

Mortality among Medicare Beneficiaries Diagnosed with Dementia

Total

Prevalence indicated by both percentage and (count)

 

All Claims & Encounter DataHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
Total23.09% (1,010,829)13.25% (151,124)8.95% (232,091)17.19% (1,394,372)

By Program

Program NameHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
Medicare FFS25.14% (626,928)15.26% (91,253)9.63% (136,909)18.95% (855,296)
Medicare Advantage20.38% (383,966)11.04% (59,900)8.13% (95,243)14.98% (538,995)

By Age

Age RangeHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
<6511.56% (18,906)7.81% (7,658)6.57% (19,350)8.26% (45,935)
65+23.54% (992,030)13.76% (143,449)9.26% (212,858)17.85% (1,348,641)
65-6913.81% (33,756)9.09% (10,547)7.55% (23,625)10.09% (67,944)
70-7414.91% (71,420)9.39% (17,515)6.87% (33,349)10.63% (122,347)
75-7917.45% (123,240)10.59% (21,876)7.56% (37,162)12.98% (182,289)
80-8420.61% (181,605)12.72% (25,822)8.81% (37,784)16.2% (245,110)
85+30.58% (582,058)20.5% (67,727)13.94% (80,838)25.97% (730,710)

By Gender

GenderHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
Male24.94% (406,895)15.15% (74,071)10.35% (116,365)18.41% (597,352)
Female22% (604,182)11.83% (77,089)7.88% (115,749)16.38% (797,185)

By Race/Ethnicity

Racial/Ethnic IdentificationHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
African American22.01% (111,784)12.91% (18,239)8.98% (24,577)16.75% (154,575)
American Indian/Alaskan Native24.45% (3,906)15.72% (748)11.89% (1,259)18.88% (5,913)
Asian or Pacific Islander17.29% (23,688)9.45% (3,801)6.66% (4,345)13.13% (31,835)
non-Hispanic White24.54% (782,662)14.24% (113,464)9.34% (183,732)18.14% (1,079,926)
non-Hispanic Other18.93% (6,144)11.02% (987)7.42% (1,406)14.14% (8,536)
Unknown13.53% (3,220)7.52% (715)5.11% (1,373)8.82% (5,308)
Hispanic (any race)16.87% (79,5159.5% (13,209)6.74% (15,549)12.88% (108,331)

COVID-19 Infections among Medicare Beneficiaries Diagnosed with Dementia

Total

Prevalence indicated by both percentage and (count)

 

All Claims & Encounter DataHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
Total16.5% (722,334)9.79% (111,661)7.58% (196,564)12.7% (1,030,165)

By Program

Program NameHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
Medicare FFS18.42% (459,348)10.98% (65,659)8.04% (114,304)14.16% (639,102)
Medicare Advantage13.95% (262,823)8.47% (45,956)7.02% (82,239)10.87% (391,113)

By Age

Age RangeHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
<6519.64% (32,121)12.18% (11,943)9.47% (27,890)12.94% (71,962)
65+16.38% (690,291)9.56% (99,663)7.34% (168,723)12.69% (958,782)
65-6917.83% (43,582)10.91% (12,659)8.2% (25,659)12.16% (81,883)
70-7416.05% (76,881)9.63% (17,962)7.38% (35,824)11.35% (130,634)
75-7915.32% (108,197)9.06% (18,716)7.01% (34,458)11.49% (161,363)
80-8415.52% (136,754)8.97% (18,209)6.93% (29,721)12.21% (184,740)
85+17.06% (324,719)9.72% (32,113)7.42% (43,029)14.21% (399,823)

By Gender

GenderHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
Male15.95% (260,224)10.16% (49,674)7.75% (87,133)12.24% (397,153)
Female16.82% (461,925)9.5% (61,906)7.45% (109,433)13.01% (633,173)

By Race/Ethnicity

Racial/Ethnic IdentificationHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
African American19.17% (97,360)11.72% (16,557)9.57% (26,191)15.18% (140,086)
American Indian/Alaskan Native19.37% (3,094)13.79% (656)10.71% (1,134)15.6% (4,886)
Asian or Pacific Islander11.45% (15,687)6.91% (2,779)5.19% (3,386)9.01% (21,846)
non-Hispanic White16.57% (528,472)9.43% (75,138)7.11% (139,865)12.49% (743,565)
non-Hispanic Other13.75% (4,463)8.36% (749)6.38% (1,209)10.64% (6,423)
Unknown13.5% (3,213)8.96% (852)6.63% (1,782)9.71% (5,844)
Hispanic (any race)
14.83% (69,900)10.71% (14,891)10.02% (23,116)12.83% (107,911)

Average Annual All-Cause Payments among Medicare Beneficiaries Diagnosed with Dementia

Total

Average payments indicated by dollar amount and (number of applicable beneficiaries)

 

All Claims & Encounter DataHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
TotalNANANANA

By Program

Program NameHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
Medicare FFS$26,714 (36,899,634)$24,465 (36,899,634))$23,185 (36,899,634)25,304 (36,899,634)
Medicare AdvantageNANANANA

By Age (FFS Only)

Age RangeHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
<65$34,884 (5,053,410)$33,740 (5,053,410)$31,254 (5,053,410)32,813 (5,053,410)
65+$26,387 (31,846,224)$23,619 (31,846,224)$22,182 (31,846,224)24,764 (31,846,224)
65-69$33,291 (9,341,366)$28,924 (9,341,366)$26,591 (9,341,366)29,501 (9,341,366)
70-74$29,754 (8,811,258)$25,365 (8,811,258)$23,009 (8,811,258)26,214 (8,811,258)
75-79$27,578 (5,690,835)$24,473 (5,690,835)$22,126 (5,690,835)25,219 (5,690,835)
80-84$25,950 (3,775,320)$23,069 (3,775,320)$21,140 (3,775,320)24,212 (3,775,320)
85+$24,606 (4,227,445)$21,001 (4,227,445)$20,188 (4,227,445)23,295 (4,227,445)

By Gender (FFS Only)

GenderHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
Male$28,988 (17,401,301)$26,568 (17,401,301)$25,108 (17,401,301)27,309 (17,401,301)
Female$25,367 (19,498,333)$22,857 (19,498,333)$21,691 (19,498,333)23,965 (19,498,333)

By Race/Ethnicity (FFS Only)

Racial/Ethnic IdentificationHighly Likely Dementia 
(2+ Specific Diagnoses)
Likely Dementia 
(1 Specific Diagnosis)
Possible Dementia 
(less specific diagnosis)
All Diagnosis Codes
African American$34,956 (3,372,892)$32,804 (3,372,892)$31,837 (3,372,892)33,810 (3,372,892)
American Indian/Alaskan Native$29,136 (209,255)$28,474 (209,255)$29,244 (209,255)29,075 (209,255)
Asian or Pacific Islander$25,734 (1,116,628)$19,499 (1,116,628)$19,870 (1,116,628)23,214 (1,116,628)
non-Hispanic White$25,362 (28,666,575)$23,525 (28,666,575$22,253 (28,666,575)24,117 (28,666,575)
non-Hispanic Other$27,300 (304,332)$23,255 (304,332)$21,381 (304,332)24,896 (304,332)
Unknown$25,798 (774,538)$22,345 (774,538)$20,883 (774,538)23,097 (774,538)
Hispanic (any race)
$30,560 (2,455,414)$25,430 (2,455,414)$25,864 (2,455,414)28,540 (2,455,414)