Table 1 Search strategy

1

((firearm* or handgun* or gun or guns or pistol* or rifle* or shotgun* or weapon*) and (store or storing or stored or storage or lockup or lock or locks or locked or locking or lockbox* or (safe* adj2 device*))).tw,kf. or (Firearms/ and Protective Devices/)

2

(interview* or theme* or qualitative or attitude* or perspective* or perception* or survey* or questionnaire* or opinion* or prefer* or behavior or behavior or behaviors or behaviors or belief* or plan or planning or planned or plans or focus group*).tw,kf. or exp qualitative research/ or focus groups/ or interviews as topic/ or “surveys and questionnaires”/ or Narration/

3

1 and 2

4

limit 3 to English language

5

remove duplicates from 4