User login
Wide Regional Variation in Dementia Risk Across the United States
TOPLINE:
The likelihood of receiving a dementia diagnosis in older adults varies significantly by region across the United States, a new study suggests. Rates ranged from 1.7% to 5.4%, with variations more pronounced in those aged 66-74 years and Black or Hispanic individuals.
METHODOLOGY:
- Researchers analyzed newly diagnosed cases of Alzheimer’s disease and related dementias (ADRD) using the 2018-2019 Medicare claims data for 4.8 million older adults across 306 hospital referral regions (HRRs).
- Participants were categorized by age and race or ethnicity to examine variations in diagnosis rates.
- Regional characteristics such as education level and prevalence of obesity, smoking, and diabetes were included to adjust for population risk factors.
- ADRD-specific diagnostic intensity was calculated as the ratio of the observed-to-expected new cases of ADRD in each HRR.
TAKEAWAY:
- Unadjusted analysis for that overall, 3% of older adults received a new ADRD diagnosis in 2019, with rates ranging from 1.7 to 5.4 per 100 individuals across HRRs and varied by age category.
- Regions in the South had the highest unadjusted ADRD case concentration, and the areas in the West/Northwest had the lowest.
- The ADRD-specific diagnosis intensity was 0.69-1.47 and varied the most in Black and Hispanic individuals and those aged 66-74 years.
- Regional differences in ADRD diagnosis rates are not fully explained by population risk factors, indicating potential health system-level differences.
IN PRACTICE:
“From place to place, the likelihood of getting your dementia diagnosed varies, and that may happen because of everything from practice norms for healthcare providers to individual patients’ knowledge and care-seeking behavior. These findings go beyond demographic and population-level differences in risk and indicate that there are health system-level differences that could be targeted and remediated,” lead author Julie P.W. Bynum, MD, MPH, said in a press release.
SOURCE:
The study was led by Dr. Bynum, professor of internal medicine, University of Michigan Medical School, Ann Arbor, Michigan, and published online in Alzheimer’s & Dementia.
LIMITATIONS:
The results may not be generalizable to other groups. The observational design of the study cannot completely negate residual confounding. The measures of population risks are coarser than those used in well-characterized epidemiologic studies, leading to potential imprecision. Finally, the study was not designed to determine whether regional differences in the likelihood of ADRD diagnosis resulted in differences in the population health outcomes.
DISCLOSURES:
The study was supported by a grant from the National Institute on Aging. The authors reported no conflicts of interest.
This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.
TOPLINE:
The likelihood of receiving a dementia diagnosis in older adults varies significantly by region across the United States, a new study suggests. Rates ranged from 1.7% to 5.4%, with variations more pronounced in those aged 66-74 years and Black or Hispanic individuals.
METHODOLOGY:
- Researchers analyzed newly diagnosed cases of Alzheimer’s disease and related dementias (ADRD) using the 2018-2019 Medicare claims data for 4.8 million older adults across 306 hospital referral regions (HRRs).
- Participants were categorized by age and race or ethnicity to examine variations in diagnosis rates.
- Regional characteristics such as education level and prevalence of obesity, smoking, and diabetes were included to adjust for population risk factors.
- ADRD-specific diagnostic intensity was calculated as the ratio of the observed-to-expected new cases of ADRD in each HRR.
TAKEAWAY:
- Unadjusted analysis for that overall, 3% of older adults received a new ADRD diagnosis in 2019, with rates ranging from 1.7 to 5.4 per 100 individuals across HRRs and varied by age category.
- Regions in the South had the highest unadjusted ADRD case concentration, and the areas in the West/Northwest had the lowest.
- The ADRD-specific diagnosis intensity was 0.69-1.47 and varied the most in Black and Hispanic individuals and those aged 66-74 years.
- Regional differences in ADRD diagnosis rates are not fully explained by population risk factors, indicating potential health system-level differences.
IN PRACTICE:
“From place to place, the likelihood of getting your dementia diagnosed varies, and that may happen because of everything from practice norms for healthcare providers to individual patients’ knowledge and care-seeking behavior. These findings go beyond demographic and population-level differences in risk and indicate that there are health system-level differences that could be targeted and remediated,” lead author Julie P.W. Bynum, MD, MPH, said in a press release.
SOURCE:
The study was led by Dr. Bynum, professor of internal medicine, University of Michigan Medical School, Ann Arbor, Michigan, and published online in Alzheimer’s & Dementia.
LIMITATIONS:
The results may not be generalizable to other groups. The observational design of the study cannot completely negate residual confounding. The measures of population risks are coarser than those used in well-characterized epidemiologic studies, leading to potential imprecision. Finally, the study was not designed to determine whether regional differences in the likelihood of ADRD diagnosis resulted in differences in the population health outcomes.
DISCLOSURES:
The study was supported by a grant from the National Institute on Aging. The authors reported no conflicts of interest.
This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.
TOPLINE:
The likelihood of receiving a dementia diagnosis in older adults varies significantly by region across the United States, a new study suggests. Rates ranged from 1.7% to 5.4%, with variations more pronounced in those aged 66-74 years and Black or Hispanic individuals.
METHODOLOGY:
- Researchers analyzed newly diagnosed cases of Alzheimer’s disease and related dementias (ADRD) using the 2018-2019 Medicare claims data for 4.8 million older adults across 306 hospital referral regions (HRRs).
- Participants were categorized by age and race or ethnicity to examine variations in diagnosis rates.
- Regional characteristics such as education level and prevalence of obesity, smoking, and diabetes were included to adjust for population risk factors.
- ADRD-specific diagnostic intensity was calculated as the ratio of the observed-to-expected new cases of ADRD in each HRR.
TAKEAWAY:
- Unadjusted analysis for that overall, 3% of older adults received a new ADRD diagnosis in 2019, with rates ranging from 1.7 to 5.4 per 100 individuals across HRRs and varied by age category.
- Regions in the South had the highest unadjusted ADRD case concentration, and the areas in the West/Northwest had the lowest.
- The ADRD-specific diagnosis intensity was 0.69-1.47 and varied the most in Black and Hispanic individuals and those aged 66-74 years.
- Regional differences in ADRD diagnosis rates are not fully explained by population risk factors, indicating potential health system-level differences.
IN PRACTICE:
“From place to place, the likelihood of getting your dementia diagnosed varies, and that may happen because of everything from practice norms for healthcare providers to individual patients’ knowledge and care-seeking behavior. These findings go beyond demographic and population-level differences in risk and indicate that there are health system-level differences that could be targeted and remediated,” lead author Julie P.W. Bynum, MD, MPH, said in a press release.
SOURCE:
The study was led by Dr. Bynum, professor of internal medicine, University of Michigan Medical School, Ann Arbor, Michigan, and published online in Alzheimer’s & Dementia.
LIMITATIONS:
The results may not be generalizable to other groups. The observational design of the study cannot completely negate residual confounding. The measures of population risks are coarser than those used in well-characterized epidemiologic studies, leading to potential imprecision. Finally, the study was not designed to determine whether regional differences in the likelihood of ADRD diagnosis resulted in differences in the population health outcomes.
DISCLOSURES:
The study was supported by a grant from the National Institute on Aging. The authors reported no conflicts of interest.
This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.
Parkinson’s Risk in Women and History of Migraine: New Data
TOPLINE:
A history of migraine is not associated with an elevated risk for Parkinson’s disease (PD) in women, regardless of headache frequency or migraine subtype, a new study suggests.
METHODOLOGY:
- Researchers analyzed data on 39,312 women health professionals aged ≥ 45 years and having no history of PD who enrolled in the Women’s Health Study between 1992 and 1995 and were followed until 2021.
- At baseline, 7321 women (18.6%) had migraine.
- The mean follow-up duration was 22 years.
- The primary outcome was a self-reported, physician-confirmed diagnosis of PD.
TAKEAWAY:
- During the study period, 685 women self-reported a diagnosis of PD.
- Of these, 18.7% of reported cases were in women with any migraine and 81.3% in women without migraine.
- No significant association was found between PD risk and a history of migraine, migraine subtypes (with or without aura), or migraine frequency.
- Migraine was not associated with a higher risk for PD than that of nonmigraine headaches.
IN PRACTICE:
“These results are reassuring for women who have migraine, which itself causes many burdens, that they don’t have to worry about an increased risk of Parkinson’s disease in the future,” study author Tobias Kurth, Charité - Universitätsmedizin Berlin, Germany, said in a press release.
SOURCE:
The study was led by Ricarda S. Schulz, MSc, Charité - Universitätsmedizin Berlin. It was published online in Neurology.
LIMITATIONS:
The study’s findings may not be generalizable to other populations, such as men and non-White individuals. The self-reported data on migraine and PD may be subject to inaccuracies. PD is often not diagnosed until symptoms have reached an advanced stage, potentially leading to cases being underreported. Changes in the status and frequency of migraine over the study period were not accounted for, which may have affected the results.
DISCLOSURES:
The authors did not disclose any specific funding for this work. The Women’s Health Study was supported by the National Cancer Institute and National Heart, Lung, and Blood Institute. Two authors reported having financial ties outside this work. Full disclosures are available in the original article.
This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.
TOPLINE:
A history of migraine is not associated with an elevated risk for Parkinson’s disease (PD) in women, regardless of headache frequency or migraine subtype, a new study suggests.
METHODOLOGY:
- Researchers analyzed data on 39,312 women health professionals aged ≥ 45 years and having no history of PD who enrolled in the Women’s Health Study between 1992 and 1995 and were followed until 2021.
- At baseline, 7321 women (18.6%) had migraine.
- The mean follow-up duration was 22 years.
- The primary outcome was a self-reported, physician-confirmed diagnosis of PD.
TAKEAWAY:
- During the study period, 685 women self-reported a diagnosis of PD.
- Of these, 18.7% of reported cases were in women with any migraine and 81.3% in women without migraine.
- No significant association was found between PD risk and a history of migraine, migraine subtypes (with or without aura), or migraine frequency.
- Migraine was not associated with a higher risk for PD than that of nonmigraine headaches.
IN PRACTICE:
“These results are reassuring for women who have migraine, which itself causes many burdens, that they don’t have to worry about an increased risk of Parkinson’s disease in the future,” study author Tobias Kurth, Charité - Universitätsmedizin Berlin, Germany, said in a press release.
SOURCE:
The study was led by Ricarda S. Schulz, MSc, Charité - Universitätsmedizin Berlin. It was published online in Neurology.
LIMITATIONS:
The study’s findings may not be generalizable to other populations, such as men and non-White individuals. The self-reported data on migraine and PD may be subject to inaccuracies. PD is often not diagnosed until symptoms have reached an advanced stage, potentially leading to cases being underreported. Changes in the status and frequency of migraine over the study period were not accounted for, which may have affected the results.
DISCLOSURES:
The authors did not disclose any specific funding for this work. The Women’s Health Study was supported by the National Cancer Institute and National Heart, Lung, and Blood Institute. Two authors reported having financial ties outside this work. Full disclosures are available in the original article.
This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.
TOPLINE:
A history of migraine is not associated with an elevated risk for Parkinson’s disease (PD) in women, regardless of headache frequency or migraine subtype, a new study suggests.
METHODOLOGY:
- Researchers analyzed data on 39,312 women health professionals aged ≥ 45 years and having no history of PD who enrolled in the Women’s Health Study between 1992 and 1995 and were followed until 2021.
- At baseline, 7321 women (18.6%) had migraine.
- The mean follow-up duration was 22 years.
- The primary outcome was a self-reported, physician-confirmed diagnosis of PD.
TAKEAWAY:
- During the study period, 685 women self-reported a diagnosis of PD.
- Of these, 18.7% of reported cases were in women with any migraine and 81.3% in women without migraine.
- No significant association was found between PD risk and a history of migraine, migraine subtypes (with or without aura), or migraine frequency.
- Migraine was not associated with a higher risk for PD than that of nonmigraine headaches.
IN PRACTICE:
“These results are reassuring for women who have migraine, which itself causes many burdens, that they don’t have to worry about an increased risk of Parkinson’s disease in the future,” study author Tobias Kurth, Charité - Universitätsmedizin Berlin, Germany, said in a press release.
SOURCE:
The study was led by Ricarda S. Schulz, MSc, Charité - Universitätsmedizin Berlin. It was published online in Neurology.
LIMITATIONS:
The study’s findings may not be generalizable to other populations, such as men and non-White individuals. The self-reported data on migraine and PD may be subject to inaccuracies. PD is often not diagnosed until symptoms have reached an advanced stage, potentially leading to cases being underreported. Changes in the status and frequency of migraine over the study period were not accounted for, which may have affected the results.
DISCLOSURES:
The authors did not disclose any specific funding for this work. The Women’s Health Study was supported by the National Cancer Institute and National Heart, Lung, and Blood Institute. Two authors reported having financial ties outside this work. Full disclosures are available in the original article.
This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.