The Centers for Disease Control and Prevention have released a new report on mortality among children, and it found that brain cancer was the number one risk kids can face. The study found that brain cancer kills more children than any type of cancer.

There is plenty of good news in the report. For one thing, overall cancer rates are declining, and brain tumors are also not becoming more common in children, according to the statement. Also, leukemia, which had been the No. 1 cancer killer before for children, is now not as deadly as it used to be.

And the overall death rate from cancer showed a steep decline: 20 percent among children and teens between 1999 and 2014.

Brain tumors and leukemia still remain the most common childhood cancers and the top two killers, resulting in half of all childhood cancer deaths.

The reason that brain cancer remains with a stubbornly high mortality rate compared to other cancers is that pediatric brain tumor research hasn’t seen the advances that would result in big clinical benefits for patients. Meanwhile, better treatments for leukemia have been developed.

The statement reads: “Since the mid-1970s, cancer death rates among children and adolescents in the United States showed marked declines despite a slow increase in incidence for some of the major types (1–3). These trends have previously been shown through 2012. This data brief extends previous research by showing trends in cancer death rates through 2014 among children and adolescents aged 1–19 years in the United States. Cancer death rates for 1999–2014 are presented and trends are compared for both females and males, by 5-year age group, and for white and black children and adolescents. Percent distributions of cancer deaths among children and adolescents aged 1–19 years are shown by anatomical site for 1999 and 2014.”