What are the most common age groups affected by Acute Lymphocytic Leukemia (ALL)?

What are the most common age groups affected by Acute Lymphocytic Leukemia (ALL)?

• A. Young children and individuals over 45 years old
• B. Infants only
• C. Adults aged 60-70 only
• D. Adolescents only

Answer: (A)

Acute Lymphocytic Leukemia has two main age-related peaks: it most commonly affects young children and, to a lesser but notable extent, older adults. This bimodal pattern makes the description of young children and individuals over 45 the best match. In children, ALL is the most common cancer and often diagnosed around ages 2–5, while in adults the risk rises again with increasing age, though treatment responses and prognosis differ by age. The other options narrow to a single, less representative group (infants only, adolescents only) or to a narrow older adult range (60–70), which doesn’t reflect the true age distribution seen in ALL.

Acute Lymphocytic Leukemia has two main age-related peaks: it most commonly affects young children and, to a lesser but notable extent, older adults. This bimodal pattern makes the description of young children and individuals over 45 the best match. In children, ALL is the most common cancer and often diagnosed around ages 2–5, while in adults the risk rises again with increasing age, though treatment responses and prognosis differ by age. The other options narrow to a single, less representative group (infants only, adolescents only) or to a narrow older adult range (60–70), which doesn’t reflect the true age distribution seen in ALL.