[Predisposing factors to breast cancer in the Region Langunera (Mexico)]

To identify the presence and frequency of various predispose factors of breast cancer in the Region Lagunera (Mexico).

38 women with breast cancer (Group A, cases) and 24 women without breast pathology (Group B, controls) were analyzed; throughout a questionnaire the variables that have been described as predisposition factors were researched. Group A included patients from the Instituto Mexicano del Seguro Social, Speciality Hospital # 71, Oncology Department in Torreon, Coahuila, from May 1st to October 31st of 1999. At the same time 24 women (Group B), who attended to have an ultrasound and/or a mammography practice in a private clinic in the same city, were polled having a normal result. The means of the two treatments were compared using the SAS program version 6.3.

The following variables showed significant difference: mother and father family background with cancer p=0.032; previous breast pathology p=0.0032; hormone consumption p=0.0289; lactation p=0.038 and time of lactation p=0.036.

Overweight, obesity, mother and father family background with cancer, previous breast pathology background, period of consuming hormone, lactation and lactation period had significance in this study.