Research
Mixed
Being underweight (BMI < 18.5 kg/m²) is associated with an increased risk of atrial fibrillation, particularly in adults over 60 years.
If you are over 60, do not aim for extreme thinness. Being underweight increases your risk of atrial fibrillation, likely due to loss of muscle mass and malnutrition. Focus on maintaining a healthy, robust weight.
StrongQualifiesHIGH confidence
Underweight adults over 60 years also presented an increased AF risk... The HRs of the underweight for the risk of incident AF were generally higher than normal BMI across the different age groups, but were only statistically significant in those over 60 years old.
Why this rating
Large-scale population-based cohort.
Source
Associations between obesity parameters and the risk of incident atrial fibrillation and ischaemic stroke in the different age groups
Hyo‐Jeong Ahn et al. · Frontiers in Cardiovascular Medicine · 2022
cohort · n=9432332Cited 12×
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