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Impact of immunosuppression and region of birth on risk of cervical intraepithelial neoplasia among migrants living with HIV in Sweden.

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Carlander C, Wagner P, Svedhem V, Elfgren K, Westling K, Sönnerborg A, Sparén P,


Carlander C, Wagner P, Svedhem V, Elfgren K, Westling K, Sönnerborg A, Sparén P, (click to view)

Carlander C, Wagner P, Svedhem V, Elfgren K, Westling K, Sönnerborg A, Sparén P,

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International journal of cancer 2016 5 13() doi 10.1002/ijc.30188

Abstract

Little is known about the incidence and risk of cervical intraepithelial neoplasia (CIN) grade 3, adenocarcinoma in situ and invasive cervical cancer (CIN3+) among migrants living with HIV in a European setting. We assessed the cumulative incidence (CuI) and hazard ratio (HR) of CIN2+ and CIN3+ in a cohort of women living with HIV (WLWH) (n= 893) identified from the Swedish national HIV register and HIV-negative women (n= 205 842) identified from the Swedish Population Register, matched on region of birth and age. Data was collected between 1993 and 2011 by linking our cohort with the Swedish National Cervical Screening Registry (NKCx), collecting all cytological and histological results since 1993. The CuI of CIN3+ was 13.1% (95% CI 8.9-17.2) for WLWH and 2.1% (95% CI 2.0-2.2) for HIV-negative after 18 years of follow up. WLWH had more than eight times higher, age and region of birth matched, risk of CIN3+ than HIV-negative (HR 8.8: 95% CI 6.9-11.3). WLWH born in the East region, dominated by Thai women, had a two times higher risk of CIN3+ compared with WLWH born in Sweden (HR 2.47: 95% CI 1.2-5.0), which remained after adjusting for immunosuppression. Our results showed a substantially increased risk of CIN3+ among WLWH, which differed depending on birth region. Early HIV-diagnosis and attendance to cervical cancer screening, with focus on migrants, is of crucial importance to minimize the incidence of cervical intraepithelial neoplasia. This article is protected by copyright. All rights reserved.

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