Can perinatal factors increase the risk of childhood acute leukemia?
Acute leukemia is the most common cancer in children, but the exact causes are not fully understood. Evidence suggests that factors present around the time of birth, known as perinatal factors, can increase a child's risk. Studies have identified specific conditions like high birth weight and maternal health issues as potential contributors.
What the research says
A large review of 85 studies found that babies born with a high birth weight (over 4000 grams) have a higher risk of developing acute leukemia and the lymphoblastic subtype (ALL) 1. This review also linked an increased risk to mothers who had a history of abortion or diabetes 1. Additionally, maternal hypertension and cesarean sections were associated with a higher risk for ALL 1.
Other specific studies support these findings. One analysis of over 88,000 births found a positive relationship between higher birth weight and the risk of acute leukemia, particularly for acute myeloid leukemia (AML) 5. This study noted that the risk was especially strong for females and infants under one year old 5. Another study looked at coffee intake during pregnancy and found that drinking more than three cups a day might increase risk, though the data was limited 4.
Environmental factors also play a role. A study in France found that children living within 50 meters of high-voltage power lines had an increased risk of acute leukemia if they were under five years old 6. This suggests that exposure to magnetic fields from power lines could be a contributing factor alongside biological factors.
What to ask your doctor
- What perinatal factors in my family history might affect my child's risk?
This question is drawn from common patient questions about Hematology and answered using cited medical research. We do not provide individualized advice.