Prevalence of Multiple Chronic Conditions in 2012
In 2012, data from the National Health Interview Survey (NHIS) indicated that 25.5% of all adults aged 18 and older had two or more of the 10 studied chronic conditions. This prevalence increased significantly with age. For older adults (aged 65 and over), 60.8% had two or more chronic conditions. This figure is a combination of the 27.6% who had exactly two conditions and the 33.2% who had three or more conditions. For more details on the specific conditions studied and demographic variations, please refer to the {Link: CDC website https://www.cdc.gov/pcd/issues/2020/20_0130.htm}.
A Comparison of 2012 Multimorbidity Data
Different surveys can yield slightly different results depending on their methodology. For example, a study using data from the National Health and Nutrition Examination Survey (NHANES) between 2005 and 2012 reported that 67% of community-dwelling older adults had two or more of 9 chronic conditions. This contrasts with the 60.8% from the 2012 NHIS data which focused on 10 conditions in the non-institutionalized civilian population.
| Data Source | Time Period | Definition | Older Adult Prevalence (65+) |
|---|---|---|---|
| National Health Interview Survey (NHIS) | 2012 | Based on 10 self-reported chronic conditions from non-institutionalized US civilians. | 60.8% had two or more conditions. |
| National Health and Nutrition Examination Survey (NHANES) | 2005-2012 | Based on 9 self-reported chronic conditions from community-dwelling adults. | 67% had two or more conditions over this period. |
This comparison highlights the importance of considering the source and methods when evaluating health statistics.
Implications of High Multimorbidity
Multimorbidity in older adults has significant consequences, including reduced quality of life, increased healthcare expenditures, and a higher mortality risk. Managing multiple conditions is complex for both patients and healthcare providers, often requiring integrated care approaches. The U.S. Department of Health and Human Services has a strategic framework aimed at addressing the challenges of multiple chronic conditions by moving towards more holistic care models.
The Future of Multimorbidity in Older Adults
The 2012 data provided valuable insights into the state of multimorbidity, identifying trends and at-risk groups. Since then, the prevalence of multimorbidity has continued to be a significant public health issue, monitored by ongoing studies and informing prevention and care strategies for the aging population.
Conclusion
In 2012, a significant majority of older adults (aged 65+)—specifically 60.8%—had two or more chronic conditions, based on the National Health Interview Survey. This statistic is a key indicator of the health challenges faced by this demographic and underscores the need for continued public health efforts focused on integrated care and prevention to address the complexities of multimorbidity in the aging population. The CDC continues to monitor these trends to improve the well-being of older Americans.
