Okay. My caveat. When we talk about predictive factors of psychological trauma, it’s very difficult to generalize. While numerous different factors such as race, class, history of previous trauma, gender etc. play into it, we can’t definitely state that X trauma is worse for X group of people. Effect sizes for many risk factors are quite small or only moderate, suggesting that there is a lot more to the psychology of trauma than we are currently able to articulate.
However, there are some major factors that predispose a person to develop psychological trauma. Probably the biggest one is if the trauma is rape. Rape has consistently been shown across the board to be the most psychologically damaging type of trauma there is.
Gender does play into it, but often on a contextual basis. For example, female rape victims in the military have one the highest rates of PTSD out of any group, but being male in general tends to predispose one to be further traumatized by rape.
[QUOTE=Post Traumatic Stress Disorder, McNally 1999]
Epidemiologic data indicate that rape is the most consistent traumatogenic high-magnitude stressor. <snip>
Both men and women who had been raped categorized it as the most distressing thing that ever happened to them; 9.2% of the women [in a study of trauma survivors] and .7% of the men had experienced this trauma. Among rape victims, 65% of the men and 45.9% of the women had developed PTSD. <snip>
Risk factors [found for all survivors of trauma] include female sex, neuroticism, lower social support, pre-existing psychiatric illness, including mood and anxiety disorders, childhood physical or sexual abuse, having a parent who survived the Holocaust, childhood separation from parents, a family history of mood, anxiety or substance abuse disorders, preliminary family events, and childhood instability.
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Another study, which I describe in detail here, found that the three greatest predictive factors of PTSD were severity of the event, level of social support at time of incident, and presence of other stressors in life at time of traumatic event. Female gender was found to be a risk factor but the effect size was smallish.
[QUOTE=Risk Factor Estimates]
The three factors relating to events during and after the trauma (i.e., greater trauma severity, lack of social support, and more subsequent life stress) convey the strongest risk of PTSD, with effect sizes that are individually small to moderate in Cohen’s (1988) terms. Next, there was a group of demographic and prior history variables that had similar effect sizes in the range of .10 to .19, including female gender; lower SES; less education; lower intelligence; a positive psychiatric history; a reported history of abuse, other trauma, or childhood adversity; and a family psychiatric history. These individual effect sizes are generally regarded as small, according to Cohen. Finally, two variables, younger age at trauma and race (minority status), had effect sizes that were weaker still, although highly significant because of the large numbers involved.
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This data is largely based on studies of trauma in general, not rape per se, but that’s the best I got for right now.
My personal WAG is that, knowing that social support is so crucial for how people cope with a trauma, men who are raped are going to have high incidence of PTSD because they are significantly less likely to receive social support than women. (I also believe this is why rape trauma has been shown to be so damaging across the board – because social support is significantly less likely than for other traumas.)
I’ll continue digging and see if I can find something more specific to gender and rape.
ETA: OMG kanicbird totally threadraped the rape thread!