Social support predicts reductions in PTSD symptoms when substances are not used to cope: A longitudinal study of sexual assault survivors.

BACKGROUND

After sexual assault, many college women develop symptoms of posttraumatic stress disorder (PTSD), and those who engage in substance use coping are at heightened risk for this outcome. Positively-perceived social support has been identified as an important protective factor against the development of PTSD, but received social support could involve problematic behaviors-like the encouragement of coping through use of alcohol and/or drugs-that could worsen symptoms.

METHODS

In the current study, 147 undergraduate women with a lifetime history of sexual assault completed two waves of self-report measures assessing their symptoms. We test main and interaction effects for social support and substance use coping at baseline on PTSD symptoms one month later.

RESULTS

Results suggest that social support is longitudinally associated with decreases in PTSD. Although substance use coping did not evidence a direct association with PTSD, the relationship between social support and PTSD was significantly weaker as substance use coping increased. Only support from friends (but not family members or a "special person") was associated with later PTSD, and this relationship was moderated by substance use coping.

LIMITATIONS

Substance use coping was assessed via a brief measure, and peer encouragement of coping by using alcohol and/or drugs was not directly assessed.

CONCLUSIONS

Clinicians should consider ways to increase access to social support from friends in patients with PTSD and evaluate ways that substance use coping may interfere with social support's benefits.