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Hormonal contraceptives and the length of their use are not independent risk fa...
Longatto Filho, Adhemar; Hammes, L. Serpa; Sarian, L.; Roteli-Martins, C.; Derchain, S.; Eržen, M.; Branca, M.; Tatti, S.; Naud, P.; Matos, J. C.AIMS: To evaluate the role of hormonal contraceptives as a risk factor of high-risk human papillomavirus (HR-HPV), cervical intraepithelial lesions (CIN) and cervical cancer in our multi-center population-based LAMS (Latin American Screening) study. METHODS: A cohort study with >12,000 women from Brazil and Argentina using logistic regression to analyze the covariates of hormonal contraception (HOC - oral, inje...
Associação entre idade ao início da atividade sexual e subseqüente infecção por...
Roteli-Martins, C.; Longatto Filho, Adhemar; Hammes, L.; Derchain, S. F.; Naud, P.; Matos, J. C.; Etlinger, Daniela; Sarian, L. O.; Gontijo, R.Objetivo: descrever a idade de início da atividade sexual (sexarca) e a sua associação com a idade das mulheres com a infecção por papilomavírus humano (HPV) e com as alterações citológicas no exame de papanicolaou. Métodos: mulheres da população geral foram recrutadas para participar de um estudo de rastreamento de câncer cervical e lesões pré-malignas. Após a aplicação de questionário comportamental, foram su...
Human papillomavirus testing as an optional screening tool in low-resource sett...
Longatto Filho, Adhemar; Eržen, M.; Branca, M.; Roteli-Martins, C.; Naud, P.; Derchain, S. F.; Hammes, L.; Sarian, L. O.; Bragança, J. F.; Matos, J. C.Hybrid capture II (HC II) test for oncogenic human papillomaviruses (HPV) was carried out in a cohort of 4284 women at their first clinical visit. Overall prevalence of HPV was 17.1%, decreasing with age from 33.9% among women below 20 years to only 11.0% among those older than 41 years. HPV prevalence was significantly higher among current smokers (odds ratio [OR] ¼ 1.31; 95% CI 1.1–1.6), in women with two or ...
Fractional discrete-time signal processing: scale conversion and linear prediction
Ortigueira, M.D.; Matos, J.C.; Piedade, M.S.Nonlinear Dynamics, Vol. 29 ; A generalisation of the linear prediction for fractional steps is reviewed, widening well-known concepts and results. This prediction is used to derive a causal interpolation algorithm. A reconstruction algorithm for the situation where averages are observed is also presented. Scale conversion of discrete-time signals is studied taking as base the fractional discrete-time system t...
Fractional signal processing: scale conversion
Ortigueira, M.D.; Matos, J.C.; Piedade, M.S.In Proceedings of the “ECCTD '01 - European Conference on Circuit Theory and Design, Espoo, Finland, August 2001 ; Scale conversion of discrete-time signals are studied taking as base the fractional discrete-time system theory. Some simulation results to illustrate the behaviour of the algorithms will be presented. A new algorithm for performing the zoom transform is also described.
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