The prevalence of genital injuries in post-pubertal females presenting for forensic examination after reported sexual violence: a systematic review

BACKGROUND

Sexual violence is a prevalent issue in contemporary society requiring a robust forensic healthcare response. It is critically important that forensic examiners put clinical examination findings into an appropriate evidence-based context. The presence of genital injuries has been shown to increase the likelihood of successful criminal prosecution and report the crime. However, the reported rates of genital injury vary widely in published studies.

AIMS AND OBJECTIVES

We aim to critically evaluate and synthesize existing literature on the prevalence of genital injuries in post-pubertal females, examined following sexual violence, with a view to describing the prevalence and characteristics of genital injuries as well as the range of forensic practices employed.

METHODS

Three online databases (PubMed, Embase, and Scopus) were systematically searched with key terms.

RESULTS

Of the 1224 studies screened, 141 full-text publications met the inclusion criteria. Reported injury prevalence rates varied widely. Details pertaining to forensic examinations included in each study, such as grade of the examiner, type of examination, location of examination, and time interval from assault to examination also varied widely. Injury prevalence was highest in studies where enhanced visualization techniques were utilized.

CONCLUSIONS

This systematic review demonstrates that there is no universally agreed standard for documenting genital injuries in cases of sexual violence and highlights the need for standardized approaches and guidelines for assessing, documenting, and reporting these injuries. The review provides robust evidence to support a call for establishing consistent context, terminology, classification systems, and data collection methods to improve the comparability and reliability of future research findings.

Patient satisfaction with Sexual Assault Nurse Examiner services and post-assault resource utilization at a university health center and emergency department

Objective: Describe a model for incorporating campus-based Sexual Assault Nurse Examiner (SANE) services. Describe differences in patient satisfaction and utilization of follow-up resources between patients seeking SANE services at a university health center (UHC) compared to an emergency department (ED). Participants: Patients seeking SANE services at the UHC or ED of a large Midwestern university from January 2016-April 2018. Fifty-eight participants completed a satisfaction survey, including 28 students. Twenty-eight participants completed a follow-up survey, including 15 students. Methods: A Qualtrics survey assessed: 1) satisfaction following the SANE exam and 2) use of follow-up services 4-6 weeks later. Descriptive analyses, exact logistic regressions, and OLS regressions were calculated. Results: There were no differences in satisfaction, services received, or follow-up services accessed between patients at the UHC and ED, including between students. Conclusions: Campus-based SANE services meet the expectations of survivors and do not differ significantly from services at the ED.

Virginity Testing

Virginity testing is a human rights violation involving an examination of the female genitalia, often by a healthcare professional, intended to correlate the appearance of the hymen in women or girls with previous sexual intercourse. Virginity testing examinations are conducted under a variety of circumstances and settings: before marriage to establish virginity, to disprove or prove an allegation of sexual violence, to legally assess the allegation of a woman or girl not being a virgin in the absence of bleeding on her wedding night, and to intimidate political activists and detainees. Despite the United Nations Human Rights Office, United Nations Women, and World Health Organization calling for a ban on this practice, it remains common practice in various regions around the world. It is the position of the International Association of Forensic Nurses that virginity testing cannot accurately determine if consensual sexual activity or sexual abuse has occurred and can result in significant physical, psychological, and social consequences.

Prevalence of Adult Female Genital Trauma After Acute Sexual Assault: The Need for a Universal Definition of Genital Trauma

BACKGROUND

Examination of the adult female genitalia after an acute sexual assault may reveal findings interpreted by the examiner as injuries, which may be linked to later legal outcomes. There is no consistent definition in the literature regarding what findings constitute genital trauma after sexual assault. We studied how the prevalence of genital trauma is impacted by the inclusion/exclusion of various genital findings reported in the literature.

METHODS

A retrospective descriptive chart review of the sexual assault forensic records from a provincial regional sexual assault treatment center was conducted over a 4-year period and included 67 female patients, 12 years old and over, who reported being sexually assaulted in the previous 72 hours and received a complete forensic examination. We studied the prevalence of genital trauma, using eight definitions of trauma, as well as the percentage of each type of genital finding within this population.

RESULTS

The prevalence of genital trauma in this population ranged from 52%, the majority, to 31% of women, depending on the definition of trauma utilized. Forty-one percent of the findings, the greatest number overall, were redness. Bruises, abrasions, and tears (lacerations), the components of blunt force trauma, accounted for 4%, 15%, and 14% of the findings, respectively.

INTERPRETATION

A universal definition of what findings constitute genital trauma after acute sexual assault is required if the examiner, as expert witness, is to compare findings in a given case with the broader literature and assist the court in ensuring an informed process of decision making.

Genital injuries and allegation of digital vaginal penetration - A retrospective examination of forensic case notes

OBJECTIVE

To determine the prevalence of genital injuries following alleged sexual assault by digital penetration of the vagina in the absence of penile penetration of the vagina or anus in women age 16 and over; and to compare with the prevalence of genital injuries following alleged sexual assault by penile vaginal penetration in the absence of penile penetration of the anus or digital penetration of the vagina and/or anus.

POPULATION

1428 adults and children attending a forensic medical examination between September 2017 and January 2020 at the Haven sexual assault referral center situated in Paddington, London, UK.

DESIGN

Retrospective review of forensic notes.

METHODS

Eligible cases were identified through the standardized forensic notes and relevant data was extracted.

RESULTS

109 cases of women 16 years and over alleging digital penetration only and 110 cases of women 16 years and over alleging penile vaginal penetration only were included. The 110 cases of penile vaginal penetration only were randomly selected for comparison purposes. 7.6% of Haven attenders fulfilled the digital penetration only category. In this category, the patients mean age was 27.2 years. Thirteen patients (11.9%) sustained genital injuries; of those with genital injuries, eleven (84.6%) sustained one or more abrasions. The most common site of injury was the labia minora (46.2%). There were no significant differences between the 2 groups (digital penetration only and penile vaginal penetration only) in terms of number of patients with genital injuries, type or location of injury. There were differences regarding the relationship between patient and assailant: more stranger assaults in the digital penetration group 27/109 (29%) vs 13/110 (12%) in the penile penetration group. There was one assault by multiple assailants in the digital penetration group and 8 (7.3%) in the penile penetration group. In the digital penetration group there was more alcohol use [71/109 (65.1%) vs 62/110 (56.4%)] but less drug use [21/109 (19.3%) vs 30/110 (27.3%)] than in the penile vaginal penetration group.

CONCLUSION

The majority of patients examined following an allegation of digital vaginal penetration without penile penetration sustained no injuries. Of those who did, abrasions were the most common type of injury, with the inner labia minora being the most common location for injury. There were no significant differences with the injuries seen in the penile vaginal penetration group in terms of number of patients with genital injuries, type or location of injury.

Strategic categorization of available research relating to sexual assault and rape facilitates more accurate interpretation of injury data

The available research evidence pertaining to anogenital injury in victims of sexual violence presents a very wide range of injury prevalence data. As such, it is extraordinarily challenging for health care practitioners involved in clinical forensic examination of victims of sexual violence to place their examination findings in to context. It is generally accepted that the broad range of existing injury prevalence data is reflective of heterogeneous research study methodologies and clinical practice techniques. Thus, health care practitioners should be encouraged to present their evidence in the context of the prevalence data that are most representative of their clinical practice. Presented herein is a simple categorization of existing prevalence data in accordance with national clinical practice guidelines. The range of anogenital injury prevalence is narrower when presented in this manner than when taken as a whole. This will facilitate health care practitioners in presenting their examination findings in the context of research literature that is most representative of their clinical practice.

Analysis of possible sexual assault or abuse in a 67-year-old female with early dementia post-brain attack

The case analysis explores an emergency department visit by a 67-year-old female with early dementia post-brain attack, with complaints of possible sexual assault or abuse. This patient resides in a long-term skilled nursing facility. The case outlines the forensic care provided by the Advanced Practice Forensic Nurse (APFN) once medically cleared by the emergency department Advanced Practice Nurse (APN). The case discussion includes issues related to sexuality in aging populations, consent, sexual abuse or assault in institutions, and forensic care of older persons. Expected genital injuries in older women that result from sexual assault and abuse are also explored. The case discussion will analyze the key elements for critical thinking and clinical reasoning and demonstrate standards of care for the APFN and APN practice.

A pilot study to test the differential validity of a genital injury severity scale, in development for use in forensic sexual assault examinations

Methods of examining the sexual assault patient are not standardized and a definition of what constitutes significant genital injury after sexual assault (SA) remains controversial. This pilot study tests the empirical validity (initial differential validity) of a genital injury severity scale (GISS) under development by the authors with the hypothesis that women who report SA have more severe external genital injuries than those who engage in consensual intercourse (CI). In this observational, prospective study, an initially developed GISS is applied and the exam results of 59 CI volunteers and 185 SA patients are compared. All examinations were performed by experienced sexual assault forensic examiners (SAFE) using toluidine blue (TB) and colposcopy. The Independent Samples Median Test indicates a significant difference in median genital injury type between CI and SA subjects (p < 0.0001). There is a significant difference in the prevalence of Class A (less severe) and Class B injuries (more severe) between the SA and the CI groups (SA: Class A 60%/Class B 40%; CI: Class A 90%/Class B 10% (p= 0.0001)). This initial validation study shows effectiveness in using magnification and TB, combined with a standardized injury severity scale, in describing external genital injury in women after sexual intercourse.

Reliability of female genital injury detection after sexual assault

OBJECTIVE

To establish inter-rater reliability for genital injury detection among experienced forensic sexual assault (SA) examiners.

METHODS

Cross-sectional observational study testing inter-rater agreement of injury assessment among eight experienced SA examiners who each viewed 2-4 digital images from 50 cases. Each case was rated by 4 examiners and included images before and after toluidine blue dye application. We calculated overall agreement and kappa (κ).

RESULTS

Examiners had perfect agreement in 60 cases; in 24 cases 3 examiners agreed; in 5 cases 2 agreed and 1 was unsure; and in 9 cases there were 2 "yes" and 2 "no" ratings or 1 "yes," 1 "no," and 2 "unsure" ratings. Overall agreement was 82% (κ, 0.57) when yes|unsure and no|unsure combinations equaled disagreement and 86% (κ, 0.66) when only yes|no dyads equaled disagreement. Neither the number of images nor any single examiner fundamentally influenced results. Highly experienced examiners tended to agree with each other (86%) slightly more often than moderate examiners agreed with each other (75%).

CONCLUSIONS

Our set of experienced forensic examiners achieved moderate inter-rater agreement in assessment of the presence of female genital injury on selected digital images obtained during SA examination.

Validation set correlates of anogenital injury after sexual assault

OBJECTIVES

Forensic investigators remain unsure exactly why some sexual assault victims display acute injury while others do not. This investigation explores potential reasons for these differential findings among female victims.

METHODS

This cross-sectional analysis examined data from consecutive female sexual assault victims, at least 12 years old, who agreed to a forensic exam between November 1, 2002, and November 30, 2006. Exams utilized colposcopy, anoscopy, macrodigital imaging, and toluidine blue dye to delineate anogenital injury (AGI), which was defined as the presence of recorded anogenital abrasions, tears, or ecchymosis. Demographic variables of the victim, including sexual experience and reproductive parity, and assault characteristics were recorded in the database for bivariate and multivariate analysis with AGI.

RESULTS

Forty-nine percent of the initial 3,356 patients displayed AGI. Of this total, 2,879 cases included complete data for all variables and were included in the multivariate logistic regression model. A statistically significant increased risk for AGI was noted with: educational status (odds ratio [OR] 1.53, 95% CI = 1.25 to 1.87); vaginal or attempted penetration using penis (OR 2.29, 95% CI = 1.74 to 3.01), finger (OR 1.61, 95% CI = 1.88 to 1.94), or object (OR 3.19, 95% CI = 1.52 to 6.68); anal-penile penetration (OR 2.00, 95% CI = 1.57 to 2.54); alcohol involvement (OR 1.25, 95% CI = 1.04 to 1.50); and virgin status of victim (OR 1.38, 95% CI = 1.11 to 1.71). Victims were less likely to display AGI with a longer postcoital interval (OR 0.50, 95% CI = 0.39 to 0.65) and increased parity (OR 0.76, 95% CI = 0.57 to 0.99).

CONCLUSIONS

Approximately half the patients displayed AGI. This rate is higher than earlier studies, but consistent with current investigations utilizing similar injury detection methods. The correlates of injury found reinforce the findings of prior studies, while prompting questions for future study.

Predictors of injury associated with rape

The purpose of this study was to assess predictors of injury in a preliminary model with victim and forensic characteristics as variables. Assessment of predictors will fill gaps in the literature, help clinicians improve data-gathering methods, and identify characteristics associated with rape-related injury of women who may be at higher risk for subsequent poor health.

Using colposcopy in the rape exam: health care, forensic, and criminal justice issues

In the setting of a forensic examination following rape, colposcopy allows practitioners to identify and photograph genital injury not readily visible to the unaided eye, thereby clarifying the location and extent of injury as well as providing evidence for court proceedings. Since the 1980s, the technique once reserved for victims of child abuse has been used across the lifespan and has been shown to identify genital injury in up to 87% of women who have been raped. The role of colposcopic findings as evidence in court testimony, however, remains controversial. This paper explores the history of colposcopy in the rape exam and describes the epidemiology of genital injury in consensual sex as well as rape.