Abuse and deliberate self-poisoning in women: a matched case-control study

Area of Science:

• Psychiatry
• Psychology
• Public Health

Background:

• Previous research indicates a correlation between abuse and self-harm, but causality in self-harming populations remains under-investigated.
• This study addresses a gap in controlled research by examining abuse prevalence in women who have taken overdoses.

Purpose of the Study:

• To determine if experiences of sexual, physical, and psychological abuse are more common in women who have taken overdoses compared to a control group.
• To investigate the relationship between abuse, parenting styles, and psychopathology in women with a history of self-poisoning.

Main Methods:

• A matched (1:1) case-control study was conducted in an English district general hospital.
• 36 women admitted for deliberate self-poisoning were matched with non-overdose admissions based on sex, age, ethnicity, social class, marital status, and geographical locality.
• Standardized self-report questionnaires assessed abuse experiences, parenting style, and general psychopathology.

Main Results:

• Women who took overdoses showed a significantly higher likelihood of prior sexual abuse (odds ratio 15.0).
• A slight increase in psychological abuse was noted, but no significant difference in physical abuse was found.
• Overdosing women exhibited higher psychopathology scores, reported abuse at younger ages, and experienced "affectionless control" parenting.

Conclusions:

• Assessment for abuse experiences should be a routine part of managing women presenting after self-poisoning.
• Intervention and appropriate treatment should be initiated for individuals with significant sequelae of abuse to address underlying trauma and reduce future self-harm.