(CNN) A survey released just days before the anniversary of the shooting at Pittsburgh's Tree of Life Synagogue that killed 11 people reveals that many Jewish Americans avoid wearing things that may reveal their religious identity.

The American Jewish Committee (AJC), a Jewish advocacy organization, released the results of its survey Wednesday. It was conducted with 1,283 respondents over almost a month.

It found that nearly a third of those polled have "avoided publicly wearing, carrying or displaying things that might help people identify them as Jews."

And a quarter of respondents said they avoid places, events or situations out of concern for their safety or comfort.

JUST WATCHED Anti-Semitic hate crimes on the rise in US Replay More Videos ... MUST WATCH Anti-Semitic hate crimes on the rise in US 03:29

The statistics come nearly a year after a man opened fire in a synagogue in the historic Jewish neighborhood of Squirrel Hill during Saturday morning worship. The suspect is facing federal hate-crime charges.

Read More