[Survival and prognostic factors for gastric cancer. Analysis of 2,334 patients].
BACKGROUND
The analysis of the survival of patients diagnosed with gastricadenocarcinoma and the factors which modify prognosis.


METHODS
Retrospective cohort study of overall patients diagnosed with gastric adenocarcinoma treated in the Xeral-Calde and Juan Canelejo hospitals of Lugo and La Coruña (Spain) between 1975 and 1993. The following variables were studied: age, sex, the year of diagnosis, place of residence, delayed diagnosis, localisation of the primitive tumour, the TNM classification, the Laurén histological type and the type of surgical resection when conducted. The Kaplan-Meier statistical method was employed to determine the probability of survival. Cox regression was used to determine prognosis factors.


RESULTS
The diagnosis was established on 2,334 patients: 63,2% were males;the average overall age was 66.5 (11,9 SD) years, the median delayed diagnostic was 3,19 months, the lower third was the most common localisation (46,3%), 30,2% of the cases were diagnosed in the IV stage, and curative surgery was conducted in 46,4% of the cases. The probability of survival for overall numbers was 26% and curative surgery, was conducted in 45% of cases. The most advanced states in the TNM classification and the absence of curative surgery were factors associated with the poorest prognosis.


CONCLUSIONS
Survival after gastric cancer is low. Initial stage and radical surgical treatment are the main factors for prognosis.
Casariego Vales
E
E
Servicios de Medicina Interna. Complexo Hospitalario Xeral-Calde. Lugo. ecasccas@arrakis.es
Pita Fernández
S
S
Rigueiro Veloso
M T
MT
Pértega Díaz
S
S
Rabuñal Rey
R
R
García-Rodeja
M E
ME
Alvárez Cervela
L
L
D000230:Adenocarcinoma / Q000401:mortality*; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D016016:Proportional Hazards Models; D012189:Retrospective Studies; D013274:Stomach Neoplasms / Q000401:mortality*; D016019:Survival Analysis
Supervivencia en 2.334 pacientes con cáncer gástrico y factores que modifican el pronóstico.