title: [Breast self-examination in users of the Instituto Mexicano del Seguro Social from Teapa, Tabasco, Mexico].
abstract: OBJECTIVE
  To establish the proportion of women of 40 years-old and more, which perform properly breast self-examination in the Family Medical Unit 18 of the Instituto Mexicano del Seguro Social from Teapa, Tabasco, Mexico, in 2011.
  
  
  METHODS
  Cross-sectional study in a universe of 1457 women. A random sample of 127 women was obtained and aleatorily selected. Socio-demographic and hereditary variables were included and breast self-examination technique was evaluated. The information was taken from clinical files and check lists. Descriptive statistic was obtained.
  
  
  RESULTS
  The mean age was 52.7 ± 9.3, with a confidence interval of 40-80 years-old. Women with a primary-school education were the largest group, representing 35.4 %. Family antecedent of breast malign tumor was found in 11 %. The mother was the most frequent parent with this background (42.9 %). Adequate breast self-examination technique was observed in 0.8 %.
  
  
  CONCLUSIONS
  The proportion of women that performs breast self-examination properly is very low. Associated factors were not found. Educative interventions are required in order to correct this problem.
authors.affiliation: Unidad Médica Familiar 18, Instituto Mexicano del Seguro Social, Teapa, Tabasco, México. zgma_51083@yahoo.com.mx.
authors.forename: Samuel
authors.initials: S
authors.lastname: Córdova-Cadena
authors.forename: Patricia Vanessa
authors.initials: PV
authors.lastname: González-Pozos
authors.forename: Marco Antonio
authors.initials: MA
authors.lastname: Zavala-González
mesh_terms: D000047:Academies and Institutes; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016504:Breast Self-Examination / Q000379:methods / Q000706:statistics & numerical data*; D003430:Cross-Sectional Studies; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008800:Mexico; D008875:Middle Aged; D012943:Social Security
keywords: Breast; Descriptive epidemiology; Malign tumor; Self-examination