Re: Some Thoughts on Consequential Epidemiology and Causal Architecture

Interactions Between Forced Sexual Intercourse Victimization and Gender on Violent Behaviors: Youth Risk Behavior Survey 2017-2019

In recent years, the United States has seen an increase in gun-related violence and school shootings. The Centers for Disease Control and Prevention estimates that the incidence of gun carrying among high-school students has declined. Nevertheless, an examination of the underlying factors that increase the risk of violence-related behaviors is necessary to develop interventions to decrease gun use among high-school students. General Strain Theory (GST) predicts that victims of violence are (a) significantly more likely to engage in violent behaviors and (b) the increased risk of violent behavior by persons who experience violence is significantly greater among male victims. This research aims to test these predictions of the strain theory with data from the Youth Risk Behavior Survey (YRBS). To that end, it investigates whether the relationship between forced sexual intercourse victimization (FSIV) and gun or weapon carrying or physical fighting is significantly greater among male students. Using R and pooled data from the nationally representative YRBS (2017 and 2019), additive interactions were estimated according to Strengthening the Reporting of Observational Studies in Epidemiology guidelines to determine the association between FSIV and weapon carry, gun carry, or physical fighting. Multiplicative interactions and odds ratios were also estimated for comparison. Results show a high risk of gun and weapon carrying and physical fighting among both male and female students who experience FSIV and a significant relationship between FSIV and increased risk of these violence-related behaviors. Additive interactions show that the relationship between FSIV and these violent behaviors is significantly greater among male students than female students. Results confirm the predictions of GST and show that FSIV significantly increases the risk of gun carrying and other violence-related behaviors among male and female U.S. high-school students; the increased risk is significantly greater among male students.

Additive interactions between sex and forced sexual intercourse victimization on depressive symptoms and suicidality: Youth risk behavior survey 2001-2017

BACKGROUND

Adolescents who have been forced to have sexual intercourse have higher rates of depressive symptoms and suicidality.

PURPOSE

This research investigated whether the association between adolescent forced sexual intercourse victimization and depressive symptoms or suicidality varies significantly by sex.

METHOD

This secondary analysis pooled cross-sectional data from the Youth Risk Behavior Survey 2001 through 2017 (N = 132,580) using R to estimate adjusted risk differences and additive interactions.

FINDINGS

Results show an extremely high prevalence of depressive symptoms and suicidality among adolescents who experience forced sexual victimization. This association is significantly higher among females for depressive symptoms, but significantly higher among males for suicide attempt or suicide attempt requiring treatment.

RESULTS

also showed that approximately 40% of both males and females who attempted suicide requiring treatment also had a history of forced sexual intercourse victimization.

DISCUSSION

These findings highlight the importance of screening for sexual victimization, depression and suicidality among adolescents.

Sex differences in the relationship between prescription opioid misuse and gun and other weapon-carrying behaviors

BACKGROUND

Previous research shows that adolescent prescription opioid misuse is strongly associated with weapon carrying.

METHOD

For this research, data from the nationally representative 2017 Youth Risk Behavior Survey were analyzed. Average marginal predictions were estimated for gun and weapon carrying as a function of prescription opioid misuse and sex. As per STROBE guidelines, additive interactions with risk differences-in addition to multiplicative interactions with odds ratios and risk ratios-were estimated to investigate sex disparities in the effects of prescription opioid misuse on gun and other weapon-carrying.

RESULTS

Male US high school students who misused prescription opioids had an especially high prevalence of gun and other weapon carrying. Additive interactions show significantly greater risk differences associated with prescription opioid misuse among male students compared to female students for gun carrying, weapon carrying, and weapon carrying at school. In contrast, multiplicative interactions show lower odds ratios and risk ratios among male students for these same weapon-carrying variables.

DISCUSSION

Prescription opioid misuse is a significantly greater risk factor for gun and other weapon carrying among male US high school students, which disproportionately increases the risk for violence perpetration, including suicide among these students. Researchers should follow STROBE guidelines and report additive interactions and risk differences separately by sex when investigating risk factors associated with gun and other weapon carrying.