Minicozzi P.,Analytical Epidemiology Unit |
Cirilli C.,University of Modena and Reggio Emilia |
Federico M.,University of Modena and Reggio Emilia |
Capocaccia R.,National Center for Epidemiology |
And 9 more authors.
Tumori | Year: 2012
Aims and background. Population-based cancer registry studies of patterns of care can help elucidate reasons for differences in breast cancer survival across Italy documented by previous studies. The aims of the present study were to investigate acrosscountry variation in stage at presentation and standard care for breast cancer cases diagnosed in Italy in the early 2000s. Methods. Samples of adult (≥15 years) women with breast cancer diagnosed in 2003-2005 were randomly selected in 9 Italian cancer registries. Logistic regression models were used to estimate the odds of receiving breast-conserving surgery plus radiotherapy (BCS + RT) in each cancer registry, age group, and disease stage category compared with the entire sample (reference); the z test was used to evaluate differences in proportions of stage at diagnosis, employment of chemotherapy in nodepositive (N+) disease, and use of endocrine treatment in estrogen-receptor positive (ER+) and negative (ER-) tumors across Italy. Results. Stage at diagnosis was earlier in northern/central registries than in southern areas. Compared with the reference, the odds of receiving BCS + RT was significantly lower in Trapani, Sassari and Naples (southern Italy) after adjusting for age and stage at diagnosis. Among N+ patients, 73% received adjuvant chemotherapy (range, 51% [Biella, northern Italy] to 87% [Ragusa, southern Italy]). Eighty percent of ER+ cancers (range, 50% [Biella, northern Italy] to 97% [Ragusa, southern Italy]) and 18% of ER-cancers (range, 6% [Modena, northern Italy] to 28% [Umbria, central Italy]) were treated with hormonal therapy. Conclusions. Disparities in stage distributions and conservative surgery in breast cancer persist across Italy. On a positive note, we found lower variations in the use of systemic treatment between Italian regions. © Il Pensiero Scientifico Editore. Source
Amodio R.,University of Palermo |
Zarcone M.,Palermo Breast Cancer Registry and Experimental Oncology |
Cusimano R.,University of Palermo |
Campisi I.,Palermo Breast Cancer Registry and Experimental Oncology |
And 4 more authors.
OMICS A Journal of Integrative Biology | Year: 2011
The development of new therapeutic strategies, such as monoclonal antibodies directed against human epidermal growth factor receptor-2 (HER2), has offered new hopes for women with early breast cancer whose tumors overexpress HER2. We retrospectively analyzed the population-based data of Breast Cancer Registry of Palermo in 2004-2006, and selected 1401 invasive breast cancer cases, nonmetastatic at diagnosis, having HER2/neu oncogene expression determined. We have correlated this information to age, tumor stage at diagnosis (TNM), nodal involvement, and receptor status (ER and PgR). Survival analysis was conducted dividing the patients in two different groups according to date of diagnosis: one group diagnosed in 2004 and a second group in 2005-2006. In the 460 cases of 2004, nodal involvement, receptor status, age at diagnosis and TNM maintained a strong predictive value (p<0.0001). In this group of patients, overall survival was significantly different according to the HER2 expression levels (p=0.001). In the second group of patients (941 incident cases in 2005-2006) there was a statistically significant survival difference comparing patients with high levels of HER2 expression treated with trastuzumab versus those untreated (p=0.006). Our data show that elevated levels of HER2 are a negative prognostic factor. In addition, patients overexpressing HER2 show a significant increase of overall survival when treated with trastuzumab. © 2011 Mary Ann Liebert, Inc. Source