Table 2 Multivariate logistic regression models of the association between living in a household with a firearm and known suicidal risk factors/suicidal behaviours among respondents of the National Comorbidity Survey Replication (n = 5554)
Psychiatric disorders and suicidal behaviours in past 12 monthsHome with firearms
Anxiety disorders
    Panic disorder1.1 (0.7 to 1.7)
    Generalised anxiety disorder1.0 (0.8 to 1.2)
    Post-traumatic stress disorder0.9 (0.6 to 1.2)
    Any of the above anxiety disorders1.0 (0.8 to 1.2)
Mood disorders
    Major depressive disorder0.9 (0.7 to 1.2)
    Bipolar disorder0.7 (0.5 to 1.1)
    Any of the above mood disorders0.9 (0.7 to 1.1)
Substance use disorders
    Alcohol abuse0.9 (0.6 to 1.3)
    Alcohol dependence0.5 (0.3 to 1.0)
    Drug abuse0.8 (0.5 to 1.5)
    Drug dependence0.9 (0.3 to 2.7)
    Any of above substance use disorders0.9 (0.6 to 1.3)
Any mood/anxiety/substance disorder0.9 (0.8 to 1.2)
Suicidality
    Suicidal ideation0.8 (0.5 to 1.3)
    Suicidal plan0.5 (0.2 to 1.4)
    Serious suicidal attempt0.0†
Treatment-related characteristics
    Saw professional for mental health0.8 (0.7 to 1.1)
    Hospitalised for psychiatric disorder0.4 (0.2 to 0.9)*
  • Values are odds ratio (95% CI). Each model includes the following covariates: age, race, education, poverty/income ratio, region of country, childhood urbanicity, and sex. The Taylor series estimation method was used to estimate sampling errors, accounting for the stratified, clustered sampling design; weights were applied to all models to adjust for differential probabilities of selection, non-response and differences between the sample and 2000 US census population estimates.

  • *Significant difference at p<0.05.

  • †95% CI could not be estimated because of no serious suicide attempts in households with firearms.