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, 2013

Description: The conditions with the highest period prevalence rates are hypertension (57%) and hyperlipidemia (47%). Nearly one-third of the population has been treated for rheumatoid/osteo-arthritis (30%), ischemic heart disease (29%), 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, 2013 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, 2015

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Cardiovascular Conditions - Trends, 2004 - 2013

Description: The rates of 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 7.2% in 2004 to 8.3% in 2013.

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, 2013 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, 2015

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Cancer - Trends, 2004 - 2013

Description: The rate for female breast cancer has risen slowly over time – from 4.5% in 2004 to 5.4% in 2013. The rates of prostate, 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, 2013 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, 2015

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Endocrine and Renal Conditions - Trends, 2004 - 2013

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 23.2% in 2004 to 27.8% in 2013. The period prevalence rate of chronic kidney disease has risen from 8.2% in 2004 to 16.7% in 2013. Acquired hypothyroidism has increased from 10.4% in 2004 to 14.75% in 2013.

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, 2013 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, 2015

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Cognitive and Mental Health Conditions - Trends, 2004 - 2013

Description: The rate of treatment for depression has increased over time – from 11.2% in 2004 to 16.3% in 2013. 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 2004.

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, 2013 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, 2015

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Musculoskeletal and Joint Conditions - Trends, 2004 - 2013

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 25.9% to 30.5% (2004 to 2013, 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, 2013 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, 2015

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Pulmonary Conditions - Trends, 2004 - 2013

Description: The period prevalence of both asthma and chronic obstructive pulmonary disease have increased over time. Asthma increased from 4% in 2004 to 5.2% in 2013, while COPD increased from 11.4% to 11.7% (2004 through 2013).

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, 2013 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, 2015

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Opthalmic Conditions - Trends, 2004 - 2013

Description: The proportion of Medicare beneficiaries with a cataract procedure began to decrease after 2004. The rate of cataract procedures went from 22.8% (in 2004) to 18.4% in 2013. 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, 2013 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, 2015

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Other Conditions - Trends, 2004 - 2013

Description: The period prevalence of hypertension and hyperlipidemia has increased dramatically over time. In 2004, 51.5% of beneficiaries were being treated for hypertension compared to 57.4% in 2013. For hyperlipidemia treatment the increase was also significant –35.1% in 2004 to 46.6% in 2013. Anemia increased gradually over time – from 21.1% in 2004 to 23.5% in 2013. Benign prostatic hyperplasia has increased over time (9.9% in 2004 and 14.3% in 2013).

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, 2013 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, 2015

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Medicare - Selected Chronic Conditions by Age Group, 2013

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 79.7% of people receiving treatment are 75 years of age or older), and others are comprised largely of younger beneficiaries. For example, 62.37% of beneficiaries treated for depression are 74 years of age or less, as are 56.1% of people with diabetes and 42.7% 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, 2013 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, 2015

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Medicare - Selected Chronic Conditions by Racial Group, 2013

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. Asian/Pacific Islanders are under-represented in each of the condition categories except for diabetes; that is, they had lower than expected rates of treatment for each of these conditions given the population size. Although the white racial group comprises 81.3% of the Medicare FFS population in 2013, they comprise 86.9% of the subpopulation with chronic obstructive pulmonary disease, 86% of the population with colorectal cancer and depression. In 2013, the black racial group had disproportionately high rates of diabetes – 21.2% of beneficiaries compared to 15.8% of white beneficiaries; also disproportionately high chronic kidney disease – 12.9% compared to 9.7% of the white racial group, and heart failure (10% compared to population average of 8.7%).

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, 2013 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, 2015

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Medicare - Selected Chronic Conditions by Gender, 2013

Description: The gender distribution of Medicare beneficiaries varies by condition. Overall, in 2013 Medicare fee-for-service (FFS), 54.6% of the population was female. For depression and Alzheimer's and related senile dementia, 67.5 and 64.4% 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 (48.5% with CKD were male vs. 44.4% 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, 2013 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, 2015

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Medicare - Selected Chronic Conditions by Medicare Status Code, 2013

Description: The reason for Medicare entitlement varies by condition. In Medicare fee-for-service (FFS) overall, 16.6% of the population were entitled to Medicare due to disability rather than age in 2013. A higher than expected proportion of people with treatment for depression were disabled 31.6%. 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 92.4% 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, 2013 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, 2015

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Diabetes Period Prevalence, 2013

Description: The number of Medicare fee-for-service (FFS) enrollees with diabetes varied by state. Colorado had the lowest rate (18.98%) and New Jersey had the highest (32.83%).

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, 2013 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, 2015

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Alzheimer's/Dementia Period Prevalence, 2013

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 (7.36%) and Washington, D.C. had the highest (13.25%).

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, 2013 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, 2015

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Depression Period Prevalence, 2013

Description: The number of Medicare fee-for-service (FFS) enrollees with depression varied by state. Hawaii had the lowest rate (7.53%) and Maine had the highest (21.6%).

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, 2013 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, 2015

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