Scope Rates on this page use substantiated CPS investigations (Categories I – III). n = 289,280 · 23% of records with a recorded outcome. All-cases values shown as comparisons where relevant.

Narratives that mention firearms present in the home or accessible to the family — where in Michigan, year by year, and the top counties.

Firearms in the home

Substantiated only

Narratives that mention firearms present in the home or accessible to the family.

Where in Michigan · tap a county to compare
Year by year
Top counties · stable years only (n ≥ 1,000)
DRAFT Brian E. Perron, PhD · The Data Lab at the University of Michigan School of Social Work

Substance involvement in these cases

Firearms mentions are the outlier among the concerns tracked here — no substance class co-varies meaningfully with firearms in the narrative. Whether a case mentions firearms is essentially independent of which substance, if any, appears.

Every substance class shown against firearms in the home, ranked by all-cases lift. Both slices appear so the substantiation artifact is visible, not hidden.

Substance All cases Substantiated Both mentioned (all)
Share of firearms in the home cases Lift Share of firearms in the home cases Lift
Alcohol9.7%▲ 1.53×19.6%▲ 1.28×7,658
Stimulants4.6%▲ 1.18×8.7%▼ 0.97×3,654
Any substance involvement35.8%▲ 1.01×42.6%▼ 0.93×28,337
Cannabis9.8%▼ 0.88×14.7%▼ 0.72×7,781
Sedatives, hypnotics, anxiolytics0.9%▼ 0.84×1.8%▼ 0.60×752
Opioids4.1%▼ 0.75×6.1%▼ 0.65×3,253

Lift = P(substance | firearms in the home) ÷ P(substance | not firearms in the home). A value of 1× means the substance appears at the same rate whether or not firearms in the home is mentioned.