What does this research mean for the field?

The recent increase in homicide rates in Lima-Callao, Peru, is primarily driven by firearm violence and is spatially concentrated within specific urban microterritories. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To investigate whether recent metropolitan increases in lethal violence were predominantly driven by firearms and concentrated within distinct urban microterritories.

September 10, 2026Injury Prevention

Firearm homicide and microterritorial concentration of lethal violence in Lima–Callao, Peru, 2018–2025

View Full Paper

Ask AI

Bookmark

Authors

YCYordanis Enríquez CantoUniversidad Católica Sedes Sapientiae

Discussion

Member takes

Implication

Population-based ecological study reveals surging firearm-driven lethal violence clustered in specific urban districts, highlighting the need for geographically targeted violence prevention...

Key Points

To investigate whether recent metropolitan increases in lethal violence were predominantly driven by firearms and concentrated within distinct urban microterritories.
Conducted a population-based ecological study analyzing N=5602 homicides from Peru's National Death Information System between 2018 and 2025.
Evaluated annual homicide counts and rates overall and by mechanism (firearm vs non-firearm).
Mapped district rates across pre-pandemic, pandemic/recovery, and post-pandemic phases using empirical Bayes smoothing, global Moran's I, and Local Indicators of Spatial Association.
The homicide rate rose from 3.51 per 100,000 population in 2018 to 8.23 in 2024 and 8.37 in 2025 across 5602 recorded deaths.
Firearms accounted for 69.3% of all homicides, increasing in proportion from 54.5% of violent deaths in 2018 to 78.4% in 2025.
Homicide concentrated spatially in Callao and adjacent western districts, with firearm clustering most pronounced early in the study period before becoming less persistent over time.

Cite This Study

Yordanis Enríquez Canto (2026) studied this question.

synapsesocial.com/papers/6aa27afb58559d80afc73e6b https://doi.org/10.1136/ip-2026-046252

View Full Paper

Ask AI

Bookmark

Implication

Population-based ecological study reveals surging firearm-driven lethal violence clustered in specific urban districts, highlighting the need for geographically targeted violence prevention...

Firearm homicide and microterritorial concentration of lethal violence in Lima–Callao, Peru, 2018–2025

Discussion

Member takes

Implication

Key Points

Cite This Study

Firearm homicide and microterritorial concentration of lethal violence in Lima–Callao, Peru, 2018–2025

Discussion

Member takes

Implication

Key Points

Cite This Study

Also Consider

Also Consider