• E Chamot, A I Charvet, and T V Perneger.
• Institute of Social and Preventive Medicine, University of Geneva, CH-1211 4, Geneva, Switzerland. chamot@cmu.unige.ch
• Eur. J. Cancer. 2001 Oct 1;37(15):1869-77.

AbstractThis study assessed predictions of the Transtheoretical Model (TTM) of behaviour change applied to mammography screening in a random sample of 909 Swiss women aged 40-80 years. We examined stages of mammography adoption, positive and negative attitudes toward screening (pros, cons and decisional balance), and additional predisposing, enabling and reinforcing characteristics. The stage of mammography adoption was defined for 827 women, of whom 46.9% reported on-schedule screening (action 10.2%, maintenance 29.7%, relapse risk 7.0%) and 53% did not (precontemplation 23.1%, contemplation 13.5%, relapse 16.4%). Independent factors associated with more advanced stages (from precontemplation to maintenance) were high pros, low cons, belief that mammography screening is recommended every 2 years, high objective risk of breast cancer, being married and higher income. Independent correlates of stage regression (from action/maintenance to relapse) were high cons, belief that mammography screening is recommended every 4 years or not at all and not being married. Perceived utility of an organised screening programme and reluctance to pay for a mammogram were independently associated with only certain transitions between stages of adoption. Our results confirm the applicability of the TTM to mammography screening in a European context. They also suggest that constructs other than pros and cons may be useful in predicting mammography use.

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