title: [Epidemiological study of the GEICAM group about breast cancer in Spain (1990-1993): El Alamo project].
abstract: OBJECTIVE
  The aim of the El Alamo project was to define the demographic and clinic characteristics, treatment and evolution of women with invasive breast cancer diagnosed in hospitals of the GEICAM group (Spanish Breast Cancer Research Group) between 1990 and 1993.
  
  
  METHODS
  Data from 4,532 patients were included. Forms were completed according to the medical history of patients, and collected in the GEICAM scientific office, where they were added to a data base.
  
  
  RESULTS
  32 hospitals from 19 provinces and 11 regional communities participated in the study. Mean age of the 4,532 patients was 56.72 years, 1,428 (31.5%) were premenopausal and 2,988 (65.9%) were postmenopausal. Stage II tumors were most frequent (55.5%). Among patients with stage I, II and III at diagnosis, surgery was the first treatment in most (90.7%), radical mastectomy being the most frequent procedure performed (79.7%). 70.4% of 1941 patients with positive axillary node and 37.4% of 1,806 patients without axillary affection received adjuvant chemotherapy with or without hormone therapy.
  
  
  CONCLUSIONS
  El Alamo project represents the largest data base on breast cancer in Spain and the results are similar to those observed in other countries such as the USA.
authors.affiliation: Servicio de Oncología Médica, Hospital Universitario San Carlos, Madrid, Spain. mmartin@geicam.org
authors.forename: Miguel
authors.initials: M
authors.lastname: Martín
authors.forename: Antonio
authors.initials: A
authors.lastname: Llombart-Cussac
authors.forename: Ana
authors.initials: A
authors.lastname: Lluch
authors.forename: Emilio
authors.initials: E
authors.lastname: Alba
authors.forename: Blanca
authors.initials: B
authors.lastname: Munárriz
authors.forename: Ignacio
authors.initials: I
authors.lastname: Tusquets
authors.forename: Agustí
authors.initials: A
authors.lastname: Barnadas
authors.forename: Anna
authors.initials: A
authors.lastname: Balil
authors.forename: Javier
authors.initials: J
authors.lastname: Dorta
authors.forename: César
authors.initials: C
authors.lastname: Picó
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001943:Breast Neoplasms / Q000453:epidemiology* / Q000401:mortality / Q000628:therapy; D005260:Female; D006801:Humans; D008875:Middle Aged; D013030:Spain / Q000453:epidemiology; D015996:Survival Rate