Self-selection for mammography and breast cancer incidence by stage

L. Bucchi, M. Serafini, O. Nanni, G. Buzzi, N. Morini, C. Naldoni, P. Schincaglia

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Aims and Background: In the field of breast cancer control, obtaining population-based data on spontaneous mammography (MG) screening should be a priority. This study focuses on the breast cancer incidence and stage distribution in relation to MG use in Ravenna (Italy), 1987-88. Methods: We estimated the MG rates, expected (E) incidence based on mortality data, observed (O) incidence, predicted excess incidence based on MG rates, observed excess incidence, and stage distribution according to the MG history. Results: The highest MG rate (37%) was found among residents aged 40-44 but none of these had a T1(a-b)NO breast cancer diagnosed nor was the predicted excess incidence demonstrated. Between 45 and 64 years, 80% of self-selected screenees had repeat ('incidence') MG and the O:E incidence ratio was 1.32 (95% CI 1.09-1.58). The observed excess incidence was 3.8-fold (95% CI 2.56-5.16) greater than that predicted. Advanced (T2+ and/or N1+) cases accounted for 42% of patients diagnosed within 3 years of their last MG, for 55% of those diagnosed more than 3 years after their last MG, and for 70% of those with no previous MG. Above age 70, a significant worsening of stage at diagnosis was associated with a clear-cut drop in the proportion of breast cancer patients with previous self-referral for MG. Conclusions: The results indicate that self-selection and its implications are major features of spontaneous screening practice.

Original languageEnglish
Pages (from-to)118-123
Number of pages6
JournalTumori
Volume80
Issue number2
Publication statusPublished - 1994

Fingerprint

Mammography
Breast Neoplasms
Incidence
Italy
Referral and Consultation
History
Mortality

Keywords

  • breast neoplasms
  • incidence
  • mammography
  • mass screening

ASJC Scopus subject areas

  • Cancer Research

Cite this

Bucchi, L., Serafini, M., Nanni, O., Buzzi, G., Morini, N., Naldoni, C., & Schincaglia, P. (1994). Self-selection for mammography and breast cancer incidence by stage. Tumori, 80(2), 118-123.

Self-selection for mammography and breast cancer incidence by stage. / Bucchi, L.; Serafini, M.; Nanni, O.; Buzzi, G.; Morini, N.; Naldoni, C.; Schincaglia, P.

In: Tumori, Vol. 80, No. 2, 1994, p. 118-123.

Research output: Contribution to journalArticle

Bucchi, L, Serafini, M, Nanni, O, Buzzi, G, Morini, N, Naldoni, C & Schincaglia, P 1994, 'Self-selection for mammography and breast cancer incidence by stage', Tumori, vol. 80, no. 2, pp. 118-123.
Bucchi L, Serafini M, Nanni O, Buzzi G, Morini N, Naldoni C et al. Self-selection for mammography and breast cancer incidence by stage. Tumori. 1994;80(2):118-123.
Bucchi, L. ; Serafini, M. ; Nanni, O. ; Buzzi, G. ; Morini, N. ; Naldoni, C. ; Schincaglia, P. / Self-selection for mammography and breast cancer incidence by stage. In: Tumori. 1994 ; Vol. 80, No. 2. pp. 118-123.
@article{ed5da1218a354f959498f3e5676e411f,
title = "Self-selection for mammography and breast cancer incidence by stage",
abstract = "Aims and Background: In the field of breast cancer control, obtaining population-based data on spontaneous mammography (MG) screening should be a priority. This study focuses on the breast cancer incidence and stage distribution in relation to MG use in Ravenna (Italy), 1987-88. Methods: We estimated the MG rates, expected (E) incidence based on mortality data, observed (O) incidence, predicted excess incidence based on MG rates, observed excess incidence, and stage distribution according to the MG history. Results: The highest MG rate (37{\%}) was found among residents aged 40-44 but none of these had a T1(a-b)NO breast cancer diagnosed nor was the predicted excess incidence demonstrated. Between 45 and 64 years, 80{\%} of self-selected screenees had repeat ('incidence') MG and the O:E incidence ratio was 1.32 (95{\%} CI 1.09-1.58). The observed excess incidence was 3.8-fold (95{\%} CI 2.56-5.16) greater than that predicted. Advanced (T2+ and/or N1+) cases accounted for 42{\%} of patients diagnosed within 3 years of their last MG, for 55{\%} of those diagnosed more than 3 years after their last MG, and for 70{\%} of those with no previous MG. Above age 70, a significant worsening of stage at diagnosis was associated with a clear-cut drop in the proportion of breast cancer patients with previous self-referral for MG. Conclusions: The results indicate that self-selection and its implications are major features of spontaneous screening practice.",
keywords = "breast neoplasms, incidence, mammography, mass screening",
author = "L. Bucchi and M. Serafini and O. Nanni and G. Buzzi and N. Morini and C. Naldoni and P. Schincaglia",
year = "1994",
language = "English",
volume = "80",
pages = "118--123",
journal = "Tumori",
issn = "0300-8916",
publisher = "SAGE Publications Ltd",
number = "2",

}

TY - JOUR

T1 - Self-selection for mammography and breast cancer incidence by stage

AU - Bucchi, L.

AU - Serafini, M.

AU - Nanni, O.

AU - Buzzi, G.

AU - Morini, N.

AU - Naldoni, C.

AU - Schincaglia, P.

PY - 1994

Y1 - 1994

N2 - Aims and Background: In the field of breast cancer control, obtaining population-based data on spontaneous mammography (MG) screening should be a priority. This study focuses on the breast cancer incidence and stage distribution in relation to MG use in Ravenna (Italy), 1987-88. Methods: We estimated the MG rates, expected (E) incidence based on mortality data, observed (O) incidence, predicted excess incidence based on MG rates, observed excess incidence, and stage distribution according to the MG history. Results: The highest MG rate (37%) was found among residents aged 40-44 but none of these had a T1(a-b)NO breast cancer diagnosed nor was the predicted excess incidence demonstrated. Between 45 and 64 years, 80% of self-selected screenees had repeat ('incidence') MG and the O:E incidence ratio was 1.32 (95% CI 1.09-1.58). The observed excess incidence was 3.8-fold (95% CI 2.56-5.16) greater than that predicted. Advanced (T2+ and/or N1+) cases accounted for 42% of patients diagnosed within 3 years of their last MG, for 55% of those diagnosed more than 3 years after their last MG, and for 70% of those with no previous MG. Above age 70, a significant worsening of stage at diagnosis was associated with a clear-cut drop in the proportion of breast cancer patients with previous self-referral for MG. Conclusions: The results indicate that self-selection and its implications are major features of spontaneous screening practice.

AB - Aims and Background: In the field of breast cancer control, obtaining population-based data on spontaneous mammography (MG) screening should be a priority. This study focuses on the breast cancer incidence and stage distribution in relation to MG use in Ravenna (Italy), 1987-88. Methods: We estimated the MG rates, expected (E) incidence based on mortality data, observed (O) incidence, predicted excess incidence based on MG rates, observed excess incidence, and stage distribution according to the MG history. Results: The highest MG rate (37%) was found among residents aged 40-44 but none of these had a T1(a-b)NO breast cancer diagnosed nor was the predicted excess incidence demonstrated. Between 45 and 64 years, 80% of self-selected screenees had repeat ('incidence') MG and the O:E incidence ratio was 1.32 (95% CI 1.09-1.58). The observed excess incidence was 3.8-fold (95% CI 2.56-5.16) greater than that predicted. Advanced (T2+ and/or N1+) cases accounted for 42% of patients diagnosed within 3 years of their last MG, for 55% of those diagnosed more than 3 years after their last MG, and for 70% of those with no previous MG. Above age 70, a significant worsening of stage at diagnosis was associated with a clear-cut drop in the proportion of breast cancer patients with previous self-referral for MG. Conclusions: The results indicate that self-selection and its implications are major features of spontaneous screening practice.

KW - breast neoplasms

KW - incidence

KW - mammography

KW - mass screening

UR - http://www.scopus.com/inward/record.url?scp=0028352026&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028352026&partnerID=8YFLogxK

M3 - Article

VL - 80

SP - 118

EP - 123

JO - Tumori

JF - Tumori

SN - 0300-8916

IS - 2

ER -