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Rev Bras Ginecol Obstet. 2016;38(3):147-153
To compare the predictive capability of HPV and Pap smear tests for screening pre-cancerous lesions of the cervix over a three-year follow-up, in a population of users of the Brazilian National Health System (SUS).
This is a retrospective cohort study of 2,032 women with satisfactory results for Pap smear and HPV tests using second-generation hybrid capture,made in a previous study. We followed them for 36 months with data obtained from medical records, the Cervix Cancer Information System (SISCOLO), and the Mortality Information System (SIM). The outcome was a histological diagnosis of cervical intraepithelial neoplasia grade 2 or more advanced lesions (CIN2ş). We constructed progression curves of the baseline test results for the period, using the Kaplan-Meier method, and estimated sensitivity, specificity, positive and negative predictive value, and positive and negative likelihood ratios for each test.
A total of 1,440 women had at least one test during follow-up. Progression curves of the baseline test results indicated differences in capability to detect CIN2ş (p < 0.001) with significantly greater capability when both tests were abnormal, followed by only a positive HPV test. The HPV test was more sensitive than the Pap smear (88.7% and 73.6%, respectively; p < 0.05) and had a better negative likelihood ratio (0.13 and 0.30, respectively). Specificity and positive likelihood ratio of the tests were similar.
These findings corroborate the importance of HPV test as a primary cervical cancer screening.
Summary
Rev Bras Ginecol Obstet. 2016;38(3):147-153
To compare the predictive capability of HPV and Pap smear tests for screening pre-cancerous lesions of the cervix over a three-year follow-up, in a population of users of the Brazilian National Health System (SUS).
This is a retrospective cohort study of 2,032 women with satisfactory results for Pap smear and HPV tests using second-generation hybrid capture,made in a previous study. We followed them for 36 months with data obtained from medical records, the Cervix Cancer Information System (SISCOLO), and the Mortality Information System (SIM). The outcome was a histological diagnosis of cervical intraepithelial neoplasia grade 2 or more advanced lesions (CIN2ş). We constructed progression curves of the baseline test results for the period, using the Kaplan-Meier method, and estimated sensitivity, specificity, positive and negative predictive value, and positive and negative likelihood ratios for each test.
A total of 1,440 women had at least one test during follow-up. Progression curves of the baseline test results indicated differences in capability to detect CIN2ş (p < 0.001) with significantly greater capability when both tests were abnormal, followed by only a positive HPV test. The HPV test was more sensitive than the Pap smear (88.7% and 73.6%, respectively; p < 0.05) and had a better negative likelihood ratio (0.13 and 0.30, respectively). Specificity and positive likelihood ratio of the tests were similar.
These findings corroborate the importance of HPV test as a primary cervical cancer screening.
Summary
Rev Bras Ginecol Obstet. 2014;36(5):198-204
DOI 10.1590/S0100-7203201400050003
To assess the adherence to a cervical cancer screening program and to identify reported reasons for inadequate screening in women receiving care as part of the Family Health Strategy.
A selective prevalence study on cervical cancer screening in women receiving care as part of the Family Health Strategy in the cities of Duque de Caxias and Nova Iguaçu in the state of Rio de Janeiro, southeastern Brazil, nine years after they participated in a previous study of the Brazilian National Cancer Institute. Only those women who were not diagnosed with CIN II or more severe lesions by histopathology, did not undergo hysterectomy during the study period and still resided in the communities were eligible to participate in the study. Information on exam sites, test results and schedules, sociodemographic characteristics and reported reasons of non-adherence was obtained. Data were collected through interviews and medical record review. The prevalence of adherence to screening was estimated, and the chi-square test was used to compare proportions between the variables studied and their relationship with the reported reasons of non-adherence to screening.
A total of 764 women were interviewed, 70.7% of whom received adequate cervical cancer screening. The reported reasons for inadequate screening included: no risk perception (44.6%), social barriers (26.3%), perceived barriers to action (22.3%) and institutional barriers (21.4%). These reasons were proportionately higher among residents of Nova Iguaçu than among residents of Duque de Caxias (p<0.01), except for institutional barriers (p=0.19).
Although difficulties and barriers were reported, there was good adherence to cervical cancer screening among the women studied. Health providers should receive proper training for complying with the Brazilian Ministry of Health guidelines of regular testing and to facilitate access to screening.
Summary
Rev Bras Ginecol Obstet. 2014;36(5):198-204
DOI 10.1590/S0100-7203201400050003
To assess the adherence to a cervical cancer screening program and to identify reported reasons for inadequate screening in women receiving care as part of the Family Health Strategy.
A selective prevalence study on cervical cancer screening in women receiving care as part of the Family Health Strategy in the cities of Duque de Caxias and Nova Iguaçu in the state of Rio de Janeiro, southeastern Brazil, nine years after they participated in a previous study of the Brazilian National Cancer Institute. Only those women who were not diagnosed with CIN II or more severe lesions by histopathology, did not undergo hysterectomy during the study period and still resided in the communities were eligible to participate in the study. Information on exam sites, test results and schedules, sociodemographic characteristics and reported reasons of non-adherence was obtained. Data were collected through interviews and medical record review. The prevalence of adherence to screening was estimated, and the chi-square test was used to compare proportions between the variables studied and their relationship with the reported reasons of non-adherence to screening.
A total of 764 women were interviewed, 70.7% of whom received adequate cervical cancer screening. The reported reasons for inadequate screening included: no risk perception (44.6%), social barriers (26.3%), perceived barriers to action (22.3%) and institutional barriers (21.4%). These reasons were proportionately higher among residents of Nova Iguaçu than among residents of Duque de Caxias (p<0.01), except for institutional barriers (p=0.19).
Although difficulties and barriers were reported, there was good adherence to cervical cancer screening among the women studied. Health providers should receive proper training for complying with the Brazilian Ministry of Health guidelines of regular testing and to facilitate access to screening.
Summary
Rev Bras Ginecol Obstet. 2010;32(1):39-46
DOI 10.1590/S0100-72032010000100007
PURPOSE: to evaluate the prevalence of HPV infection and associated factors among women living in the "Baixada Fluminense", state of Rio de Janeiro, Brazil. METHODS: a cross-sectional study conducted on a sample of 2,056 women aged 25-59 years covered by the Family Health Program in the municipalities of Duque de Caxias and Nova Iguaçu, state of Rio de Janeiro, southeastern Brazil. All women were submitted to the Papanicolaou and HPV detection tests in a single session by second-generation hybrid capture from December 2001 to July 2002. The prevalence of HPV was stratified by age, place of residence, schooling, smoking habit, and sexual and reproductive history. The prevalence rates associated with the studied variables were calculated by Multivariate Poisson regression. RESULTS: the prevalence of HPV was 12.3% and 5.0% for high-risk and low-risk HPV types, respectively. A reduction in high-risk HPV prevalence was observed with aging, with an increase in the 55-59 year age range. After adjusting for age, schooling, smoking, early sexual initiation and parity, high-risk HPV infection was associated with not living with a partner (1.4; 95%CI=1.1-1.8) and having more than one sexual partner (an increase of 1.4%; 95%CI=1.1-1.6, for each lifetime sexual partner). CONCLUSIONS: the prevalence of HPV was lower than that reported in other Brazilians studies, most likely because our sample was population-based. HPV infection was associated only with factors related to sexual behavior, but the potential association between HPV infection and smoking still needs to be better understood. Further studies are needed to explore these issues, as well as postmenopausal increased infection rates, and to identify the most prevalent HPV types in the Brazilian population.
Summary
Rev Bras Ginecol Obstet. 2010;32(1):39-46
DOI 10.1590/S0100-72032010000100007
PURPOSE: to evaluate the prevalence of HPV infection and associated factors among women living in the "Baixada Fluminense", state of Rio de Janeiro, Brazil. METHODS: a cross-sectional study conducted on a sample of 2,056 women aged 25-59 years covered by the Family Health Program in the municipalities of Duque de Caxias and Nova Iguaçu, state of Rio de Janeiro, southeastern Brazil. All women were submitted to the Papanicolaou and HPV detection tests in a single session by second-generation hybrid capture from December 2001 to July 2002. The prevalence of HPV was stratified by age, place of residence, schooling, smoking habit, and sexual and reproductive history. The prevalence rates associated with the studied variables were calculated by Multivariate Poisson regression. RESULTS: the prevalence of HPV was 12.3% and 5.0% for high-risk and low-risk HPV types, respectively. A reduction in high-risk HPV prevalence was observed with aging, with an increase in the 55-59 year age range. After adjusting for age, schooling, smoking, early sexual initiation and parity, high-risk HPV infection was associated with not living with a partner (1.4; 95%CI=1.1-1.8) and having more than one sexual partner (an increase of 1.4%; 95%CI=1.1-1.6, for each lifetime sexual partner). CONCLUSIONS: the prevalence of HPV was lower than that reported in other Brazilians studies, most likely because our sample was population-based. HPV infection was associated only with factors related to sexual behavior, but the potential association between HPV infection and smoking still needs to be better understood. Further studies are needed to explore these issues, as well as postmenopausal increased infection rates, and to identify the most prevalent HPV types in the Brazilian population.
