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Estimation of Pap-test coverage in an area with an organised screening program: challenges for survey methods
BACKGROUND: The cytological screening programme of Viterbo has completed the second round of invitations to the entire target population (age 25–64). From a public health perspective, it is important to know the Pap-test coverage rate and the use of opportunistic screening. The most commonly used st...
Autores principales: | , , , , , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2006
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1435881/ https://www.ncbi.nlm.nih.gov/pubmed/16545125 http://dx.doi.org/10.1186/1472-6963-6-36 |
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author | Giorgi Rossi, Paolo Esposito, Gennaro Brezzi, Silvia Brachini, Angela Raggi, Patrizio Federici, Antonio |
author_facet | Giorgi Rossi, Paolo Esposito, Gennaro Brezzi, Silvia Brachini, Angela Raggi, Patrizio Federici, Antonio |
author_sort | Giorgi Rossi, Paolo |
collection | PubMed |
description | BACKGROUND: The cytological screening programme of Viterbo has completed the second round of invitations to the entire target population (age 25–64). From a public health perspective, it is important to know the Pap-test coverage rate and the use of opportunistic screening. The most commonly used study design is the survey, but the validity of self-reports and the assumptions made about non respondents are often questioned. METHODS: From the target population, 940 women were sampled, and responded to a telephone interview about Pap-test utilisation. The answers were compared with the screening program registry; comparing the dates of Pap-tests reported by both sources. Sensitivity analyses were performed for coverage over a 36-month period, according to various assumptions regarding non respondents. RESULTS: The response rate was 68%. The coverage over 36 months was 86.4% if we assume that non respondents had the same coverage as respondents, 66% if we assume they were not covered at all, and 74.6% if we adjust for screening compliance in the non respondents. The sensitivity and specificity of the question, "have you ever had a Pap test with the screening programme" were 84.5% and 82.2% respectively. The test dates reported in the interview tended to be more recent than those reported in the registry, but 68% were within 12 months of each other. CONCLUSION: Surveys are useful tools to understand the effectiveness of a screening programme and women's self-report was sufficiently reliable in our setting, but the coverage estimates were strongly influenced by the assumptions we made regarding non respondents. |
format | Text |
id | pubmed-1435881 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2006 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-14358812006-04-14 Estimation of Pap-test coverage in an area with an organised screening program: challenges for survey methods Giorgi Rossi, Paolo Esposito, Gennaro Brezzi, Silvia Brachini, Angela Raggi, Patrizio Federici, Antonio BMC Health Serv Res Research Article BACKGROUND: The cytological screening programme of Viterbo has completed the second round of invitations to the entire target population (age 25–64). From a public health perspective, it is important to know the Pap-test coverage rate and the use of opportunistic screening. The most commonly used study design is the survey, but the validity of self-reports and the assumptions made about non respondents are often questioned. METHODS: From the target population, 940 women were sampled, and responded to a telephone interview about Pap-test utilisation. The answers were compared with the screening program registry; comparing the dates of Pap-tests reported by both sources. Sensitivity analyses were performed for coverage over a 36-month period, according to various assumptions regarding non respondents. RESULTS: The response rate was 68%. The coverage over 36 months was 86.4% if we assume that non respondents had the same coverage as respondents, 66% if we assume they were not covered at all, and 74.6% if we adjust for screening compliance in the non respondents. The sensitivity and specificity of the question, "have you ever had a Pap test with the screening programme" were 84.5% and 82.2% respectively. The test dates reported in the interview tended to be more recent than those reported in the registry, but 68% were within 12 months of each other. CONCLUSION: Surveys are useful tools to understand the effectiveness of a screening programme and women's self-report was sufficiently reliable in our setting, but the coverage estimates were strongly influenced by the assumptions we made regarding non respondents. BioMed Central 2006-03-17 /pmc/articles/PMC1435881/ /pubmed/16545125 http://dx.doi.org/10.1186/1472-6963-6-36 Text en Copyright © 2006 Rossi et al; licensee BioMed Central Ltd. |
spellingShingle | Research Article Giorgi Rossi, Paolo Esposito, Gennaro Brezzi, Silvia Brachini, Angela Raggi, Patrizio Federici, Antonio Estimation of Pap-test coverage in an area with an organised screening program: challenges for survey methods |
title | Estimation of Pap-test coverage in an area with an organised screening program: challenges for survey methods |
title_full | Estimation of Pap-test coverage in an area with an organised screening program: challenges for survey methods |
title_fullStr | Estimation of Pap-test coverage in an area with an organised screening program: challenges for survey methods |
title_full_unstemmed | Estimation of Pap-test coverage in an area with an organised screening program: challenges for survey methods |
title_short | Estimation of Pap-test coverage in an area with an organised screening program: challenges for survey methods |
title_sort | estimation of pap-test coverage in an area with an organised screening program: challenges for survey methods |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1435881/ https://www.ncbi.nlm.nih.gov/pubmed/16545125 http://dx.doi.org/10.1186/1472-6963-6-36 |
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