Student anxiety and hostility on public high school campuses has worsened since Donald Trump became president and is affecting student learning, according to a new UCLA report.

More than half of public high school teachers in a nationally representative school sample reported seeing more students than ever with ‘‘high levels of stress and anxiety’’ between last January, when Trump took office, and May. That’s according to the study, ‘‘Teaching and Learning in the Age of Trump: Increasing Stress and Hostility in America’s High Schools,’’ by John Rogers, director of the Institute for Democracy, Education and Access at the University of California at Los Angeles.

‘‘I’ve never been in a school year where I’ve had so many kids, kind of on edge,’’ said Utah social studies teacher Nicole Morris.

And nearly 80 percent said some students had expressed concern for their well-being because of the charged public conversation about issues such as immigration, health care, the environment, travel bans, and LGBTQ rights, it said.

The policy issue that concerned students the most was the administration’s statements about immigration.

Washington Post