Homicide Risk During 10-Day Waiting Period Among First-Time Handgun Purchasers in California

Sonja A Swanson; Yifan Zhang; Ian Troidl; Matthew J Miller; David M Studdert

doi:10.1001/jamainternmed.2026.1037

Homicide Risk During 10-Day Waiting Period Among First-Time Handgun Purchasers in California

JAMA Intern Med. 2026 Jul 1;186(7):896-897. doi: 10.1001/jamainternmed.2026.1037.

Authors

Sonja A Swanson¹, Yifan Zhang², Ian Troidl¹, Matthew J Miller³, David M Studdert^{2

4}

Affiliations

¹ Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania.
² Department of Health Policy, Stanford University, Stanford, California.
³ Department of Health Sciences, Northeastern University, Boston, Massachusetts.
⁴ Stanford Law School, Stanford University, Stanford, California.

No abstract available

Plain language summary

This cohort study assesses the occurrence and risk of death by homicide involving gun purchasers and their cohabitants during a mandatory period between the purchase and physical possession of the gun.