Epic-Italy Cohorts and Multipurpose National Surveys. A Comparison of Some Socio-Demographic and Life-Style Characteristics

Author:

Calza Stefano1,Specchia Claudia1,Frasca Graziella2,Tumino Rosario2,Sacerdote Carlotta3,Fiorini Laura3,Galasso Rocco4,Ciardullo Anna Vittoria5,Palli Domenico6,Salvini Simonetta6,Krogh Vittorio7,Sieri Sabina7,Decarli Adriano1

Affiliation:

1. Dipartimento di Scienze Biomediche e Biotecnologie, Università di Brescia

2. Registro dei Tumori della Provincia di Ragusa, Azienda Ospedaliera Civile MP Arezzo, Ragusa

3. Servizio di Epidemiologia dei Tumori, Dipartimento di Scienze Biomediche e Oncologia Umana, Università di Torino

4. Ospedale Oncologico Regionale, Rionero in Vulture, Potenza

5. Centro per la Valutazione dei Servizi Sanitari, CEVEAS, Modena

6. Molecular & Nutritional Epidemiology Unit, CSPO, Istituto Scientifico della Regione Toscana, Florence

7. UO Epidemiologia, Istituto Nazionale per lo Studio e la cura dei Tumori, Milan, Italy

Abstract

Background EPIC-Italy cohort study recruited subjects who voluntarily accepted to participate in the project. From the self-selected bases of the population sample, some bias could derive in the data interpretation when risk estimation for cancer disease related to life-style factors is the principal concern. Knowledge of the bias related to self-selected sampling is important for better directing the interpretation of the EPIC-Italy study results. Methods We investigated the characteristics of volunteer subjects recruited in the EPIC-Italy cohorts and compared them with those of the randomly selected subjects recruited in the Multipurpose ISTAT Surveys realized in the same period (1993-1998) in which the Epic-cohorts were recruited. Results We found some differences, and in particular a different attitude towards cigarettes smoking and wine consumption, between the EPIC cohort and the Multipurpose ISTAT Surveys, as well as among geographical areas within the EPIC cohort. Conclusions The uneven distribution of some characteristics suggests that the self-selected subjects were characterized by an overall lower consumption of wine and cigarette smoking even when the educational level was considered. This could suggest a generally more healthy life-style among subjects recruited on a volountary bases.

Publisher

SAGE Publications

Subject

Cancer Research,Oncology,General Medicine

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