Parents are worried about their children playing football, but most haven’t decided to keep their kids from putting on a helmet and stepping onto the field.

According to an Associated Press-GfK poll, nearly half of parents said they’re not comfortable letting their child play football amid growing uncertainty about the long-term impact of concussions.

In the poll, 44 percent of parents weren’t comfortable with their child playing football. The same percentage was uncomfortable with ice hockey, and 45 percent were uncomfortable with participation in wrestling.

Only 5 percent, though, said they have discouraged their child from playing in the last two years as concern over head injuries has increased at all levels of the game.

The majority of parents said they are comfortable with participation in a host of other sports — including swimming, track and field, basketball, soccer, baseball and softball, among others.

The AP-GfK poll was conducted July 24-28. It included interviews with 1,044 adults and has a sampling error of plus or minus 3.4 percentage points.

The parents’ concern comes as several high-profile lawsuits have challenged how concussions have been addressed in pro and college sports. Thousands of pro players sued the NFL and a $675 million settlement that would compensate them for concussion-related claims is pending.

A tentative settlement with the NCAA, meanwhile, would create a $70 million fund to test thousands of current and former college athletes for brain trauma.

Youth and high school programs have increased training available for coaches, and helmet companies are releasing new designs with the hope that they reduce the force of impact. But research is murky about whether or not they will be effective.

Participation statistics also show only a slight decline in the overall number of high school students playing football.

According to the National Federation of State High School Associations, nearly 1.1 million students played 11-man football during the 2012-13 school year. The number was down approximately 10,000 from the year before and more than 20,000 since 2009-08.