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Validation set correlates of anogenital injury after sexual assault.
Acad Emerg Med. 2008 Mar; 15(3):231-8.AE

Abstract

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.

Authors+Show Affiliations

David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Validation Study

Language

eng

PubMed ID

18304053

Citation

Drocton, Peter, et al. "Validation Set Correlates of Anogenital Injury After Sexual Assault." Academic Emergency Medicine : Official Journal of the Society for Academic Emergency Medicine, vol. 15, no. 3, 2008, pp. 231-8.
Drocton P, Sachs C, Chu L, et al. Validation set correlates of anogenital injury after sexual assault. Acad Emerg Med. 2008;15(3):231-8.
Drocton, P., Sachs, C., Chu, L., & Wheeler, M. (2008). Validation set correlates of anogenital injury after sexual assault. Academic Emergency Medicine : Official Journal of the Society for Academic Emergency Medicine, 15(3), 231-8. https://doi.org/10.1111/j.1553-2712.2008.00050.x
Drocton P, et al. Validation Set Correlates of Anogenital Injury After Sexual Assault. Acad Emerg Med. 2008;15(3):231-8. PubMed PMID: 18304053.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Validation set correlates of anogenital injury after sexual assault. AU - Drocton,Peter, AU - Sachs,Carolyn, AU - Chu,Lawrence, AU - Wheeler,Malinda, PY - 2008/2/29/pubmed PY - 2008/7/22/medline PY - 2008/2/29/entrez SP - 231 EP - 8 JF - Academic emergency medicine : official journal of the Society for Academic Emergency Medicine JO - Acad Emerg Med VL - 15 IS - 3 N2 - 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. SN - 1553-2712 UR - https://www.unboundmedicine.com/medline/citation/18304053/Validation_set_correlates_of_anogenital_injury_after_sexual_assault_ L2 - https://doi.org/10.1111/j.1553-2712.2008.00050.x DB - PRIME DP - Unbound Medicine ER -