Eva Clark1,2, Liang Chen2,3, Yongquan Dong2,3, Suchismita Raychaudhury2,3, Donna White2, Jennifer R Kramer2,3,4, Elizabeth Chiao1,2,4. 1. Department of Medicine, Section of Infectious Diseases, Baylor College of Medicine, Houston, Texas, USA. 2. Health Services Research, Michal E. DeBakey Center for Innovations in Quality, Effectiveness, and Safety (IQuESt), Houston, Texas, USA. 3. Department of Medicine, Section of Health Services Research, Baylor College of Medicine, Houston, Texas, USA. 4. Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA.
Abstract
BACKGROUND: Disparities in access to screening often confound observed differences in human papillomavirus (HPV)-associated female genital tract cancer (FGTC) incidence between women living with human immunodeficiency virus (HIV; WLWH) and their HIV-negative counterparts. We aimed to determine if there have been changes in cancer risk among WLWH during the antiretroviral era in a single-payer health system. METHODS: We retrospectively selected WLWH and HIV-negative controls receiving care between 1999 and 2016 at the US Department of Veterans Affairs (VA) and identified FGTC diagnoses via Cancer Registry and International Classification of Diseases-9/10 codes. We extracted demographic and clinical variables from the VA's Corporate Data Warehouse; evaluated incidence rates (IRs), incidence rate ratios, hazard ratios, and 95% confidence intervals (CIs) for cancer risk; and conducted survival analyses. RESULTS: We identified 1454 WLWH and compared them with 5816 matched HIV-negative controls. More WLWH developed HPV-associated FGTCs (total n = 28 [2.0%]; cervical = 22, vulvovaginal = 4, and anal/rectal = 2) than HIV-negative women (total n = 32 [0.6%]; cervical = 24, vulvovaginal = 5, and anal/rectal = 5) (log rank P < .0001). Cervical cancer IR was >6-fold higher for WLWH (204.2 per 100 000 person-years [py] [95% CI, 83.8-324.7]) than HIV-negative women (IR = 31.2 per 100 000 py [95% CI, 17.9-44.5]). The IRs for vulvovaginal and anal cancers were also higher in WLWH. Overall, WLWH were more likely to develop HPV-associated FGTCs compared with their HIV-negative counterparts (all log rank P values < .0001). CONCLUSIONS: Veteran WLWH are more likely to develop HPV-associated FGTCs despite equal access to health care. Even in single-payer health systems, WLWH continue to require special attention to ensure guideline-based high-risk HPV screening for prevention of FGTCs. Published by Oxford University Press for the Infectious Diseases Society of America 2020.
BACKGROUND: Disparities in access to screening often confound observed differences in human papillomavirus (HPV)-associated female genital tract cancer (FGTC) incidence between women living with human immunodeficiency virus (HIV; WLWH) and their HIV-negative counterparts. We aimed to determine if there have been changes in cancer risk among WLWH during the antiretroviral era in a single-payer health system. METHODS: We retrospectively selected WLWH and HIV-negative controls receiving care between 1999 and 2016 at the US Department of Veterans Affairs (VA) and identified FGTC diagnoses via Cancer Registry and International Classification of Diseases-9/10 codes. We extracted demographic and clinical variables from the VA's Corporate Data Warehouse; evaluated incidence rates (IRs), incidence rate ratios, hazard ratios, and 95% confidence intervals (CIs) for cancer risk; and conducted survival analyses. RESULTS: We identified 1454 WLWH and compared them with 5816 matched HIV-negative controls. More WLWH developed HPV-associated FGTCs (total n = 28 [2.0%]; cervical = 22, vulvovaginal = 4, and anal/rectal = 2) than HIV-negative women (total n = 32 [0.6%]; cervical = 24, vulvovaginal = 5, and anal/rectal = 5) (log rank P < .0001). Cervical cancer IR was >6-fold higher for WLWH (204.2 per 100 000 person-years [py] [95% CI, 83.8-324.7]) than HIV-negative women (IR = 31.2 per 100 000 py [95% CI, 17.9-44.5]). The IRs for vulvovaginal and anal cancers were also higher in WLWH. Overall, WLWH were more likely to develop HPV-associated FGTCs compared with their HIV-negative counterparts (all log rank P values < .0001). CONCLUSIONS: Veteran WLWH are more likely to develop HPV-associated FGTCs despite equal access to health care. Even in single-payer health systems, WLWH continue to require special attention to ensure guideline-based high-risk HPV screening for prevention of FGTCs. Published by Oxford University Press for the Infectious Diseases Society of America 2020.
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