Early-onset breast cancer is on the rise in younger women in the U.S., according to two new peer-reviewed studies, leading some experts to wonder if cellphone use could be at least partially to blame.
The authors of an Aug. 16 study in JAMA Network Open looked at the health data from 2010 to 2019 of more than half a million people in the U.S. under 50 who reported having some kind of early-onset cancer.
They concluded breast cancer in 2019 had the highest incidence rate, with 12,649 new cases reported that year.
Meanwhile, the authors of a study published Sept. 5 in BMJ Oncology looked at worldwide cancer trends from 1990-2019. Breast cancer was responsible for the largest number of cases and associated deaths among younger people, with rates of 13.7 cases and 3.5 deaths per 100,000 people, they said.