Table 1. Defining Characteristics of 5 Latent Classes of Firearm Owners, 2018 California Safety and Well-being Survey^a.

Characteristic	Class 1	Class 2	Class 3	Class 4	Class 5
Firearms owned. No.	≥5	1	1	2-4	≥5
Types of firearms owned	HG and LG	LG only	HG only	HG and LG	AW and other firearms
Any firearm owned primarily for protection against people	No	No	Yes	Yes	Yes
Firearm storageb	Most secure	Storage practices varied	Moderately secure	Least secure	Least secure
Loaded handgun carrying	No	No	No	No	Yes, primarily for protection against people
High-capacity ammunition magazine ownership	No	No	No	No	Yes

Abbreviations: AW, assault weapon; HG, handgun; LG, non–assault-type long gun.

^aAdapted from Schleimer et al (2019)² with permission from BMJ Publishing Group Limited.

^bLeast secure indicates that the firearm was unlocked and loaded; moderately secure, locked and loaded or unlocked and unloaded; and most secure, locked and unloaded.