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."

After establishing that firearms were kept in the home, interviewers asked, "What kinds of firearms are they?" The survey form instructed interviewers to enter the corresponding number for each type of firearm mentioned.

Other responses and corresponding variables include:

• GUNRIFLERifle kept around home

• GUNHANDHandgun kept around home

• GUNOTHEROther gun kept around home