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Revista de Matemática Teoría y Aplicaciones

Print version ISSN 1409-2433


REYES VELAZQUEZ, Luis et al. Times of analgesic efficacy of two drugs in the treatment of patients with renal-ureteral colic compared by survival models. Rev. Mat [online]. 2015, vol.22, n.1, pp.179-190. ISSN 1409-2433.

Renourethral colic is a very painful clinical situation that requires a quick diagnosis and treatment. A study was done with patients who were administered two types of analgesics, and whose pain was measured through a visual analogue scale. Censored data results were obtained, considering the time when the pain disappeared as the random variable. Maximum likelihood and survival analysis give useful methods to estimate the distribution and parametric functions for this variable. This study will allow a more effective, timely, lower cost and suitable medical treatment for patients.

Keywords : Censoring; renourethral colic; likelihood; lognormal; Weibull.

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