[The inappropriateness in the use of female cancer screening tests in Italy: over- and under-utilization determinants]. / L'inappropriatezza nell'uso dei test di screening oncologici femminili in Italia: determinanti di sovra e sottoutilizzo.

ABSTRACT

OBJECTIVES: to identify the determinants of over and under-use of Pap test and mammography in the screening programme target population. DESIGN: cross-sectional study. SETTING E PARTICIPANTS: we used data from the National Health interview conducted by the Italian National Institute of Statistics in 2012-2013 obtaining nation-wide representative samples of the female resident population aged 25-64 years (No. 32,831; target age of Pap test) and 50-69 years (No. 16,459; target age of mammography). MAIN OUTCOME MEASURES: overall coverage proportion of women in the target age with at least one test in lifetime; appropriate coverage proportion of women reporting to have at least one or more tests following the first one with the recommended frequency (three and two years for Pap test and mammography, respectively); over-use women reporting to repeat test at higher frequency; under-use women reporting not having ever had a test or having test at longer intervals. For frequency outcomes, only women aged 28-64 years and 52-69 years were included for Pap test and mammography, respectively. RESULTS: 11.9% of women have Pap test at the recommended frequency, 48.5% at shorter intervals, and 19.6% at longer intervals than recommended, while 20.0% never had a Pap test at all (39.6% under-use). 41.1% of women have a mammography at the recommended interval, 18.4% at shorter intervals, and 20.2% at longer intervals, while 20.3% never had a mammography at all. For both tests, in the North-East higher appropriate coverage and less over-use are observed, while in the South more under-use is highlighted. Young, foreigners, single, less educated, and unoccupied women have, at the same time, more over- and under-use for Pap test. Foreigner women reporting economic difficulties and single women have more mammography over and under-use. CONCLUSIONS: Pap test and, in a minor measure, mammography over-use are relevant in Italy, while large part of the population is still not covered.