Dementia is a leading cause of death among which age group?

Dementia is a leading cause of death among which age group?

• A. Those aged 65 and older
• B. Younger than 65
• C. All age groups equally
• D. Only those over 85

Answer: (A)

Dementia’s impact on mortality rises with age, so it becomes a leading cause of death in older adults because its prevalence increases sharply after 65. In younger people, dementia is much rarer and doesn’t top causes of death. While the condition is especially common in those over 85, the broader group aged 65 and older captures where dementia most often drives mortality. That makes the 65 and older group the best answer. The other options don’t fit: younger than 65 isn’t correct because dementia isn’t a leading death cause there; dementia isn’t equally distributed across all ages; and focusing only on those over 85 is too narrow since many deaths due to dementia occur in the 65–84 range as well.

Dementia’s impact on mortality rises with age, so it becomes a leading cause of death in older adults because its prevalence increases sharply after 65. In younger people, dementia is much rarer and doesn’t top causes of death. While the condition is especially common in those over 85, the broader group aged 65 and older captures where dementia most often drives mortality. That makes the 65 and older group the best answer. The other options don’t fit: younger than 65 isn’t correct because dementia isn’t a leading death cause there; dementia isn’t equally distributed across all ages; and focusing only on those over 85 is too narrow since many deaths due to dementia occur in the 65–84 range as well.