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Epidemiology of colorectal cancer: the 21-year experience of a specialised registry

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Abstract

Cancer registries can be viewed as one of the main strategies for improving our understanding of cancer, as they may reveal the importance of specific trends in cancer incidence and survival; in addition, the information obtained from the registries can be translated into preventive measures that might lead to a better control of neoplasms. A colorectal cancer registry was instituted in Northern Italy in 1984. The purpose of this study is to provide a description of the main findings observed in a 21-year period of continuous registration. Results: A total of 3951 malignancies of the large bowel were registered in 3817 patients, for a crude incidence rate of 75.1/100 000/year in men and 59.0 in women. Overall incidence (crude and age-adjusted) of colorectal tumours increased remarkably throughout the registration period. This increase was mainly due to early (Stage I and II) tumours and to lesions with lymph nodal involvement (Stage III). There was a tendency over time towards a progressive increase of colonic tumours, whereas the fraction of rectal neoplasms tended to decline. Colorectal cancerspecific survival increased significantly over time in each of the main TNM/Dukes classes (p<0.006 and <0.001 for Stage II and III tumours). Finally, surgery for colorectal tumours showed a tendency towards large operations (colectomy and hemicolectomy), which was parallel to a definite improvement of pathological staging. Conclusions: Despite the increasing incidence of colorectal cancer, there are several reasons for cautious optimism. Most of the lesions are now diagnosed at an early stage, and this is associated with a significant increase of survival. The disease is undoubtedly cured better than in the past; the main challenge for future years is to achieve a sustained reduction of mortality for colorectal neoplasms.

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Authors and Affiliations

  1. Dipartimento di Medicine e Specialità Mediche Medicina I, Università di Modena e Reggio Emilia, Policlinico, Via del Pozzo 71, I-41100, Modena, Italy

    M. Ponz de Leon, G. Rossi, F. Rossi, G. Ponti, L. Pecone, M. Pedroni, L. Roncucci, A. Pezzi & P. Benatti

  2. Divisione di Anatomia Patologica, Ospedale di Carpi, Modena, Italy

    C. di Gregorio

  3. Dipartimento di Servizi Diagnostici e di Laboratorio, Università di Modena e Reggio Emilia, Modena, Italy

    C. De Gaetani

Authors
  1. M. Ponz de Leon
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  2. G. Rossi
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  3. C. di Gregorio
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  4. C. De Gaetani
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  5. F. Rossi
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  6. G. Ponti
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  7. L. Pecone
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  8. M. Pedroni
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  9. L. Roncucci
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  10. A. Pezzi
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  11. P. Benatti
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Correspondence to M. Ponz de Leon.

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Ponz de Leon, M., Rossi, G., di Gregorio, C. et al. Epidemiology of colorectal cancer: the 21-year experience of a specialised registry. Int Emergency Med 2, 269–279 (2007). https://doi.org/10.1007/s11739-007-0077-z

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  • DOI: https://doi.org/10.1007/s11739-007-0077-z

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