Obesity and diabetes are jointly associated with functional disability in stroke survivors.
Ryan R Bailey, Monica C Serra, Ryan P McGrath
PMID 32139319WHAT IT FOUND
Stroke survivors with both obesity and diabetes had 2.62 times higher adjusted odds of functional disability compared to those with neither condition.
Having either condition alone also increased odds. This suggests that managing weight and blood sugar is critical for preserving mobility and self-care after a stroke.
Key findings
01Stroke survivors with both obesity and diabetes had 2.62 times higher adjusted odds of functional disability compared to those with neither condition.
02Functional disability was defined as difficulty ambulating or performing self-care activities, such as walking, climbing stairs, dressing, or bathing.
03The study was cross-sectional, so it cannot determine cause and effect between obesity, diabetes, and stroke-related disability.
STILL TO COME
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What it does not show
The study is cross-sectional, so it cannot prove that obesity and diabetes caused the disability, only that they are associated. All data, including stroke history, diabetes diagnosis, and functional disability, were self-reported and not confirmed by medical records or objective measurements. The survey excluded institutionalized individuals and those without telephones or who could not participate in a telephone survey (e.g., due to severe cognitive, speech, or hearing impairment), likely underestimating the true prevalence of disability. The study could not control for the type or severity of stroke-related impairment.
Declared interests
The study was supported by the National Institutes of Health (NIH). The data source (BRFSS) is sponsored by the Centers for Disease Control and Prevention.
The easy way to misread this
Do not interpret this as evidence that weight loss or diabetes management will definitively reduce disability in stroke survivors. The study is cross-sectional and shows association, not causation. It does not test an intervention.