Abstract

ORTIZ-BARBOZA, Adolfo  and  LEAL-MATEOS, Manrique. Sobrevida en pacientes con cáncer de cervix. Acta méd. costarric [online]. 2005, vol.47, n.4, pp.192-195. ISSN 0001-6002.

Objective: To estimate 5 year calculate the five-year cumulative survival probability of a patient cohort diagnosed with interine cervical cancer during 1999. Methods: To analyse of the information, we used frequency distributions with absolute values as well as percentages, measures of central tendency as well as of variance. The relation ship between cualitative variables was done by means of a chi square statistical test. A p value less or equal to 0.05, was significant. The cumulative survival probability was done using the Kaplan-Meier method. The comparison between the survival times was done using a logarithmic range test. The level of significance was again fixed at less or equal to 0.05. Results: A total of 778 cases were studied at the end of the study period, 91 patients had died. The 5 year, cumulative survival probability for the whole population was 88.3%. The patients in which carcinoma in situ was detected at the time of diagnosis, showed a cumulative survival probability of 98.8% while those with invasive carcinoma had a value of 68.3%. This difference was statistically significant. The cumulative survival probability for the patients diagnosed with squamous cell carcinoma was 89% while those with adenocarcinoma had a value of 80%. This difference did not fall within the range of statistical significance, though. Conclusions: If we compare our results with similar investigations done elsewhere, we can see that our values are superior to those seen in countries with a level of development lower than that of Costa Rica and that, they are similar of those of developed countries. With the results obtained, we could as sume that the cumulative survival probabilities are greater in those patients in whom the diagnosis of cervical cancer is done at a young age; in addition, this may be related to the high proportion of carcinoma in situ cases diagnosed at this stage in life. when the prognosis for this illness is more favorable.

Keywords : survival; cancer; cervix; cervical cancer.