Association between the experience of sexual violence and insomnia in a national sample of French adults

Abstract

Purposel: The experience of sexual violence has been associated with sleeping disorders; however, few studies have examined this association using a large sample of the general population. This study investigates whether lifetime experience of sexual violence and childhood experience of sexual violence are associated with insomnia.

Methods: Our study is based on data from the 2017 French Health Barometer, a general population phone cross-sectional survey, which included 25 319 adults aged 18-75 years in 2017. Questions regarding sleep quality were asked to 12 560 participants, and insomnia was defined according to the 5th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-V). We conducted adjusted Log-binomial regressions to examine the association between the experience of sexual violence and insomnia by calculating adjusted Prevalence Ratios (PRa; 95% CI).

Results: The weighted prevalence of insomnia was 13.5%, with women more affected than men (17.9% vs 9.6%). The prevalence of lifetime experience of sexual violence was around 3 times higher among those who suffer from insomnia (12.3%) compared to those who do not (4.5%). The adjusted associations between lifetime experience of sexual violence and insomnia, as well as between childhood experience of sexual violence and insomnia were both statistically significant (PRa = 1.79; 95% CI: 1.59-2.02; and PRa = 1.42; 95% CI: 1.23-1.64 respectively).

Conclusions: Sexual violence could explain the substantial sex-difference in insomnia. Our findings reiterate the importance of systematically screening for sexual violence among patients suffering from sleep disorders to propose adequate trauma-informed interventions.

Keywords: Childhood sexual violence; Insomnia; Sex-differences; Sexual violence; Sleep disorders.