Interviewers introduced the questions on firearm safety by stating, "The next questions are about safety and firearms. Firearms include pistols, shotguns, rifles, and other types of guns. Do not include guns that cannot fire, starter pistols, or BB guns." The survey form also directed interviewers to read if necessary: "Sometimes the use of firearms can lead to injury, which is a health problem."

Interviewers asked, "Is there one or more than one firearm?"