U.S. suicides last year remained at about the highest level in the nation's history, preliminary data suggests.

A little more than 49,300 suicide deaths were reported in 2023, according to provisional data from the Centers for Disease Control and Prevention. That number that could grow a little as some death investigations are wrapped up and reported.

Just under 49,500 were reported in 2022, according to final data released Thursday. The numbers are close enough that the suicide rate for the two years are the same, CDC officials said.

U.S. suicide rates have been rising for nearly 20 years, aside from a two-year drop around the beginning of the COVID-19 pandemic. So "a leveling off of any increase in suicide is cautiously promising news," said Katherine Keyes, a Columbia University public health professor who studies suicide.

Indeed, there's reason for optimism. A 2-year-old national crisis line allows anyone in the U.S. to dial 988 to reach mental health specialists. That and other efforts may be starting to pay off, Keyes said, but it "really remains to be seen."

Experts caution that suicide — the nation's 11th-leading cause of death in 2022 — is complicated and that attempts can be driven by a range of factors. Contributors include higher rates of depression, limited availability of mental health services, and the availability of guns. About 55% of all suicide deaths in 2022 involved firearms, according to CDC data.

The CDC's Thursday report said:

—Suicide was the second-leading cause of death for people ages 10–14 and 20–34, and the third-leading cause for people ages 15–19.

—Deaths continue to be more common among boys and men than girls and women. The highest suicide rate for any group — by far — was in men ages 75 and older, at about 44 suicides per 100,000 men that age.

—Among women, the highest rate was in those who were middle-aged, about 9 per 100,000. But more dramatic increases have been seen in teens and young women, with the rate for that group doubling in the last two decades.

—The overall suicide rate in 2022 and 2023 was 14.2 per 100,000. It also was that high in 2018. Before then, it hadn't been that high since 1941.