For use with the following charts and graphs, please reference the Condition Chart Legend for a list of all condition-related abbreviations and their corresponding full titles. 

Medicare - CCW Condition Period Prevalence, 2014

Description: The conditions with the highest period prevalence rates are hypertension (57%) and hyperlipidemia (46%). Nearly one-third of the population has been treated for rheumatoid/osteo-arthritis (31%), ischemic heart disease (28%), and diabetes (28%).

Technical Notes: Period prevalence is calculated for these rates. Beneficiaries with full or nearly full fee-for-service (FFS) coverage during the year who received treatment for the condition within the condition-specified look back period. Chronic conditions have a 1 to 3 year look-back time period. Please refer to the CCW Chronic Condition Categories for algorithm criteria. Denominator is all who were enrolled in Medicare on or after January 1, 2014 and had full or nearly full FFS coverage (i.e., 11 or 12 months of Medicare Part A and B [or coverage until time of death] and one month or less of HMO coverage). Only females are included in the denominator for endometrial and female breast cancer; only males are included for prostate cancer and benign prostatic hyperplasia. Beneficiaries may be counted in more than one chronic condition category.

Chart Date: April 25, 2016

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Cardiovascular Conditions - Trends, 2005 - 2014

Description: The rates for several of the cardiovascular conditions have been fairly stable over time, with a slight decrease in ischemic heart disease and heart failure (HF) beginning in 2007 and 2006, respectively. Atrial fibrillation has increased slightly over time, from 7.4% in 2005 to 8.4% in 2014.

Technical Notes: Period prevalence is calculated for these rates. Beneficiaries with full or nearly full fee-for-service (FFS) coverage during the year who received treatment for the condition within the condition-specified look back period. Chronic conditions have a 1 to 2 year look-back time period. Please refer to the CCW Chronic Condition Categories for algorithm criteria. Denominator is all who were enrolled in Medicare on or after January 1, 2014 and had full or nearly full FFS coverage (i.e., 11 or 12 months of Medicare Part A and B [or coverage until time of death] and one month or less of HMO coverage). Beneficiaries may be counted in more than one chronic condition category.

Chart Date: April 25, 2016

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Cancer - Trends, 2005 - 2014

Description: The rate for female breast cancer has risen slowly over time – from 4.6% in 2005 to 5.5% in 2014. The rate for prostate cancer has decreased somewhat – from 7.41% in 2007 to 6.84% in 2014. The rates of lung, colorectal, and endometrial cancer were stable over time.

Technical Notes: Period prevalence is calculated for these rates. Beneficiaries with full or nearly full fee-for-service (FFS) coverage during the year who received treatment for the condition within the condition-specified look back period. These conditions have a 1 year look-back time period. Please refer to the CCW Chronic Condition Categories for algorithm criteria. Denominator is all who were enrolled in Medicare on or after January 1, 2014 and had full or nearly full FFS coverage (i.e., 11 or 12 months of Medicare Part A and B [or coverage until time of death] and one month or less of HMO coverage). Only females are included in the denominator for endometrial and female breast cancer; only males are included for prostate cancer. Beneficiaries may be counted in more than one chronic condition category.

Chart Date: April 25, 2016

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Endocrine and Renal Conditions - Trends, 2005 - 2014

Description: There has been a large increase over time for each of the endocrine and renal conditions. The proportion of the population being treated for diabetes increased from 24.25% in 2005 to 27.65% in 2014. The period prevalence rate of chronic kidney disease has risen from 9.1% in 2005 to 17.3% in 2014. Acquired hypothyroidism has increased from 10.8% in 2005 to 15.0% in 2014.

Technical Notes: Period prevalence is calculated for these rates. Beneficiaries with full or nearly full fee-for-service (FFS) coverage during the year who received treatment for the condition within the condition-specified look back period. These conditions have a 1 to 2 year look-back time period. Please refer to the CCW Chronic Condition Categories for algorithm criteria. Denominator is all who were enrolled in Medicare on or after January 1, 2014 and had full or nearly full FFS coverage (i.e., 11 or 12 months of Medicare Part A and B [or coverage until time of death] and one month or less of HMO coverage). Beneficiaries may be counted in more than one chronic condition category.

Chart Date: April 25, 2016

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Cognitive and Mental Health Conditions - Trends, 2005 - 2014

Description: The rate of treatment for depression has increased over time – from 11.5% in 2005 to 16.7% in 2014. The pattern in rates of treatment for Alzheimer's disease is parallel to the rates of treatment for Alzheimer's disease or related senile dementia– both of which have been fairly stable since 2005.

Technical Notes: Period prevalence is calculated for these rates. Beneficiaries with full or nearly full fee-for-service (FFS) coverage during the year who received treatment for the condition within the condition-specified look back period. Chronic conditions have a 1 to 3 year look-back time period. Please refer to the CCW Chronic Condition Categories for algorithm criteria. Denominator is all who were enrolled in Medicare on or after January 1, 2014 and had full or nearly full FFS coverage (i.e., 11 or 12 months of Medicare Part A and B [or coverage until time of death] and one month or less of HMO coverage). Beneficiaries may be counted in more than one chronic condition category.

Chart Date: April 25, 2016

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Musculoskeletal and Joint Conditions - Trends, 2005 - 2014

Description: The rates of hip fractures and treatment for osteoporosis have been stable over time. The rate of treatment for rheumatoid or osteoarthritis has increased from 26.55% to 30.66% (2005 to 2014, respectively).

Technical Notes: Period prevalence is calculated for these rates. Beneficiaries with full or nearly full fee-for-service (FFS) coverage during the year who received treatment for the condition within the condition-specified look back period. These conditions have a 1 to 2 year look-back time period. Please refer to the CCW Chronic Condition Categories for algorithm criteria. Denominator is all who were enrolled in Medicare on or after January 1, 2014 and had full or nearly full FFS coverage (i.e., 11 or 12 months of Medicare Part A and B [or coverage until time of death] and one month or less of HMO coverage). Beneficiaries may be counted in more than one chronic condition category.

Chart Date: April 25, 2016

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Pulmonary Conditions - Trends, 2005 - 2014

Description: The period prevalence for asthma has increased over time - from 4.2% in 2005 to 5.2% in 2014, while chronic obstructive pulmonary disease (COPD) has been fairly stable - from 11.8% to 11.5% (2005 through 2014).

Technical Notes: Period prevalence is calculated for these rates. Beneficiaries with full or nearly full fee-for-service (FFS) coverage during the year who received treatment for the condition within the condition-specified look back period. Chronic conditions have a 1 to 3 year look-back time period. Please refer to the CCW Chronic Condition Categories for algorithm criteria. Denominator is all who were enrolled in Medicare on or after January 1, 2014 and had full or nearly full FFS coverage (i.e., 11 or 12 months of Medicare Part A and B [or coverage until time of death] and one month or less of HMO coverage). Beneficiaries may be counted in more than one chronic condition category.

Chart Date: April 25, 2016

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Opthalmic Conditions - Trends, 2005 - 2014

Description: The proportion of Medicare beneficiaries with a cataract procedure began to decrease after 2005. The rate of cataract procedures went from 22.5% (in 2005) to 17.9% in 2014. Treatment for glaucoma has been fairly stable over time.

Technical Notes: Period prevalence is calculated for these rates. Beneficiaries with full or nearly full fee-for-service (FFS) coverage during the year who received treatment for the condition within the condition-specified look back period. These conditions have a 1 year look-back time period. Please refer to the CCW Chronic Condition Categories for algorithm criteria. Denominator is all who were enrolled in Medicare on or after January 1, 2014 and had full or nearly full FFS coverage (i.e., 11 or 12 months of Medicare Part A and B [or coverage until time of death] and one month or less of HMO coverage). Beneficiaries may be counted in more than one chronic condition category.

Chart Date: April 25, 2016

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Other Conditions - Trends, 2005 - 2014

Description: The period prevalence of hypertension and hyperlipidemia has increased dramatically over time. In 2005, 52.8% of beneficiaries were being treated for hypertension compared to 57.0% in 2014. For hyperlipidemia treatment the increase was also significant –37.6% in 2005 to 46.3% in 2014. Anemia increased gradually over time – from 21.4% in 2005 to 24.5% in 2011, and then decreased to 22.8% in 2014. Benign prostatic hyperplasia has increased over time – from 10.4% in 2005 to 14.4% in 2014.

Technical Notes: Period prevalence is calculated for these rates. Beneficiaries with full or nearly full fee-for-service (FFS) coverage during the year who received treatment for the condition within the condition-specified look back period. These conditions have a 1 year look-back time period. Please refer to the CCW Chronic Condition Categories for algorithm criteria. Denominator is all who were enrolled in Medicare on or after January 1, 2014 and had full or nearly full FFS coverage (i.e., 11 or 12 months of Medicare Part A and B [or coverage until time of death] and one month or less of HMO coverage). Beneficiaries may be counted in more than one chronic condition category.

Chart Date: April 25, 2016

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Medicare - Selected Chronic Conditions by Age Group, 2014

Description: The age distribution of Medicare beneficiaries with selected chronic conditions is shown. Some conditions are comprised largely of older Medicare beneficiaries (e.g., Alzheimer's and related senile dementia– where 79.3% of people receiving treatment are 75 years of age or older), and others are comprised largely of younger beneficiaries. For example, 62.8% of beneficiaries treated for depression are 74 years of age or less, as are 56.5% of people with diabetes and 43.2% of people with chronic kidney disease.

Technical Notes: Age is determined at the end of the calendar year. Period prevalence is calculated for these rates. Beneficiaries with full or nearly full fee-for-service (FFS) coverage during the year who received treatment for the condition within the condition-specified look back period. These conditions have a 1 to 3 year look-back time period. Please refer to the CCW Chronic Condition Categories for algorithm criteria. Denominator is all who were enrolled in Medicare on or after January 1, 2014 and had full or nearly full FFS coverage (i.e., 11 or 12 months of Medicare Part A and B [or coverage until time of death] and one month or less of HMO coverage). Beneficiaries may be counted in more than one chronic condition category.

Chart Date: April 25, 2016

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Medicare - Selected Chronic Conditions by Racial Group, 2014

Description: The racial distribution of Medicare fee-for-service (FFS) beneficiaries with chronic conditions is shown. There is racial variation in the prevalence of treatment for these conditions. Although the white racial group comprises 83.7% of the Medicare FFS population in 2014, they comprise 87.1% of the subpopulation with chronic obstructive pulmonary disease, 86.2% of the population with depression, and 85.8% of the population with colorectal cancer. In 2014, the black racial group had disproportionately high rates of diabetes – 38.2% compared to 25.8% of white beneficiaries; also disproportionately high chronic kidney disease – 23.9% compared to 16.6%, heart failure -17.7% compared to 14.1%, and stroke – 5.2% compared to 3.8% of the white racial group.

Technical Notes: American Indian, Native American, Other, and Unknown races are grouped together due to small cell sizes. Period prevalence is calculated for these rates. Beneficiaries with full or nearly full fee-for-service (FFS) coverage during the year who received treatment for the condition within the condition-specified look back period. These conditions have a 1 to 3 year look-back time period. Please refer to the CCW Chronic Condition Categories for algorithm criteria. Denominator is all who were enrolled in Medicare on or after January 1, 2014 and had full or nearly full FFS coverage (i.e., 11 or 12 months of Medicare Part A and B [or coverage until time of death] and one month or less of HMO coverage). Beneficiaries may be counted in more than one chronic condition category.

Chart Date: April 25, 2016

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Medicare - Selected Chronic Conditions by Sex, 2014

Description: The gender distribution of Medicare beneficiaries varies by condition. Overall, in 2014 Medicare fee-for-service (FFS), 54.8% of the population was female. For depression and Alzheimer's and related senile dementia, 67.4 and 64.0% of the subpopulation, respectively, was female. For chronic kidney disease (CKD), we have a higher proportion of males treated than we would have expected based on the overall population distribution of males - 48.7% with CKD were male vs. 45.2% of total Medicare FFS male.

Technical Notes: Period prevalence is calculated for these rates. Beneficiaries with full or nearly full fee-for-service (FFS) coverage during the year who received treatment for the condition within the condition-specified look back period. These conditions have a 1 to 3 year look-back time period. Please refer to the CCW Chronic Condition Categories for algorithm criteria. Denominator is all who were enrolled in Medicare on or after January 1, 2014 and had full or nearly full FFS coverage (i.e., 11 or 12 months of Medicare Part A and B [or coverage until time of death] and one month or less of HMO coverage). Beneficiaries may be counted in more than one chronic condition category.

Chart Date: April 25, 2016

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Medicare - Selected Chronic Conditions by Medicare Status Code, 2014

Description: The reason for Medicare entitlement varies by condition. In Medicare fee-for-service (FFS) overall, 17.3% of the population were entitled to Medicare due to disability rather than age in 2014. A higher than expected proportion of people with treatment for depression were disabled 30.9%. For some conditions, a much higher proportion of the subpopulation were aged – for example, Alzheimer's and related senile dementia and colorectal cancer, with 94.6% and 92.1% of the subpopulations, respectively, entitled due to age.

Technical Notes: Classification used the Medicare status code, and combined ESRD and Disabled categories into the "Disabled" grouping. Beneficiaries with full or nearly full fee-for-service (FFS) coverage during the year who received treatment for the condition within the condition-specified look back period. These conditions have a 1 to 3 year look-back time period. Please refer to the CCW Chronic Condition Categories for algorithm criteria. Denominator is all who were enrolled in Medicare on or after January 1, 2014 and had full or nearly full FFS coverage (i.e., 11 or 12 months of Medicare Part A and B [or coverage until time of death] and one month or less of HMO coverage). Beneficiaries may be counted in more than one chronic condition category.

Chart Date: April 25, 2016

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Diabetes Period Prevalence, 2014

Description: The number of Medicare fee-for-service (FFS) enrollees with diabetes varied by state. Colorado had the lowest rate (18.79%) and New Jersey had the highest (32.74%).

Technical Notes: Period prevalence is calculated for these rates. Beneficiaries with full or nearly full FFS coverage during the year who received treatment for diabetes within the 2-year look back period. Please refer to the CCW Chronic Condition Categories for algorithm criteria. Denominator is all who were enrolled in Medicare on or after January 1, 2014 and had full or nearly full FFS coverage (i.e., 11 or 12 months of Medicare Part A and B [or coverage until time of death] and one month or less of HMO coverage).

Chart Date: April 25, 2016

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Alzheimer's/Dementia Period Prevalence, 2014

Description: The number of Medicare fee-for-service (FFS) enrollees with Alzheimer's disease or related senile dementia varied by state. Alaska had the lowest rate (7.33%) and Washington, D.C. had the highest (13.34%).

Technical Notes: Period prevalence is calculated for these rates. Beneficiaries with full or nearly full FFS coverage during the year who received treatment for Alzheimer's disease or related senile dementia within the 3-year look back period. Please refer to the CCW Chronic Condition Categories for algorithm criteria. Denominator is all who were enrolled in Medicare on or after January 1, 2014 and had full or nearly full FFS coverage (i.e., 11 or 12 months of Medicare Part A and B [or coverage until time of death] and one month or less of HMO coverage).

Chart Date: April 25, 2016

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Depression Period Prevalence, 2014

Description: The number of Medicare fee-for-service (FFS) enrollees with depression varied by state. Hawaii had the lowest rate (7.72%) and Maine had the highest (22.23%).

Technical Notes: Period prevalence is calculated for these rates. Beneficiaries with full or nearly full FFS coverage during the year who received treatment for depression within the 1-year look back period. Please refer to the CCW Chronic Condition Categories for algorithm criteria. Denominator is all who were enrolled in Medicare on or after January 1, 2014 and had full or nearly full FFS coverage (i.e., 11 or 12 months of Medicare Part A and B [or coverage until time of death] and one month or less of HMO coverage).

Chart Date: April 25, 2016

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