Injury recidivism in women with personality disorders reflects an increased risk for both natural and unnatural death.

BACKGROUND: A small proportion of patients account for a disproportionate use of emergency healthcare services and exhibit an increased mortality. This group includes individuals with different conditions and risk-taking behaviors. Among them are persons diagnosed with personality disorders, who are particularly susceptible to injuries and intoxications-factors that contribute to an increased risk of premature death, especially from unnatural causes.. In this study in women with a personality disorder diagnosis, we hypothesized that the number of inpatient episodes due to injuries or intoxications would be independently related to the mortality risk for both natural and unnatural causes.

METHODS: A cohort of all women who received a personality disorder diagnosis in the Swedish National Patient Register during the years 1997-2015 (n = 44,221) was followed up until December 31, 2015. All inpatient treatment periods with diagnoses of injuries or intoxications were documented. Information on all deaths was obtained from The Swedish Cause of Death Register.

RESULTS: Multivariable Cox proportional hazards regressions, adjusted for relevant confounders revealed that the number of inpatient care episodes due to injuries or intoxications was independently related to later all-cause mortality, as well as mortality from unnatural and natural causes, and suicidal actions.

CONCLUSIONS: The results motivate particular attention to women with recurrent injuries or intoxications with an assessment of the need for non-emergent measures to decrease the risk of early death, including suicide.