Introduction/Objective. Epidemiology of melanoma including the number new cases and mortality have been established in most developed countries, but data on pathohistological features are mostly missing. The objective study was to investigate epidemiological, clinical, patients compare results with trends other countries. Methods. Our sample comprised surgically treated for skin at Hospital Bur...

Thick cutaneous melanomas (Breslow depth > 4 mm) are locally advanced tumors, generally associated with poor prognosis. Nevertheless, these tumors sometimes display unpredictable behavior. This study aims to analyze clinical and histopathological features that can influence the prognosis of thick melanomas. is a retrospective on 94 primary diagnosed between 2012 2018 were followed-up for at ...

Merkel cell carcinoma (MCC) is a skin tumor of neuroendocrine origin with a mortality of 33%, the highest of any cutaneous malignancy. Within the United States the estimated annual incidence is increasing and is estimated at 0.44 per 100,000 persons, resulting in roughly 1,000 new cases per year [1]. Several factors may be contributing to this trend, including changes in the major risk factors ...

In the epidemiological world, we often encounter the following analytical question: is the relationship between exposure and outcome different for different strata? The Breslow-Day test (with or without the Tarone adjustment) can be used in PROC FREQ to assess homogeneity across a series of 2 x 2 tables, but what if your tables are not 2 x 2? One alternative is to fit a log-linear model to a k ...

In this paper we derive some unbiased estimators of the population mean under simple inverse sampling with replacement, using the class of Hansen-Hurwitz and Horvitz-Thompson type estimators and the post-stratification approach. We also compare the efficiency of resulting estimators together with Murthy's estimator. We show that in despite of general belief, the strategy consisting of inverse s...