Relationship of physical intimate partner violence with mental health diagnoses in the nationwide emergency department sample

Objectives: We examined associations of physical intimate partner violence (PIPV) with selected mental health disorders using a nationally representative sample of emergency department (ED) discharges corresponding to men and women (18-64 years) from the 2010 Nationwide Emergency Department Sample. Methods: PIPV was determined using International Classification of Disease, 9th Revision, Clinical Modification (ICD-9-CM) external cause of injury code E967.3 (battering by spouse or partner). ICD-9-CM clinical classification of discharge diagnoses was used to identify mental health disorders. Multivariable logistic regression models were constructed to estimate adjusted odds ratios (OR_adj) and their 95% confidence intervals (CIs). Results: PIPV prevalence was estimated at 0.36 per 1000 ED discharges. The strongest correlates of PIPV were alcohol-related (OR_adj = 3.02, 95% CI: 2.62-3.50), adjustment (OR_adj = 2.37, 95% CI: 1.56-3.58), intentional self-harm (OR_adj = 1.41, 95% CI: 1.05-1.89), anxiety (OR_adj = 1.23, 95% CI: 1.07-1.40), drug-related (OR_adj = 1.22, 95% CI: 1.01-1.47), and mood (OR_adj = 1.16, 95% CI: 1.04-1.31) disorders. PIPV's association with alcohol-related disorders was stronger among women (OR_adj = 3.22, 95% CI: 2.79-3.72) versus men (OR_adj = 1.98, 95% CI: 1.42-2.77). Similarly, drug-related disorders were stronger correlates of PIPV among women (OR_adj = 1.32, 95% CI: 1.09-1.60) versus men (OR_adj = 0.59, 95% CI: 0.31-1.16). Conclusions: In EDs, PIPV was linked to several mental health disorders, with women experiencing comorbid PIPV and substance use more frequently than men.