Socioeconomic differentials and mortality from colorectal cancer in large cities in Brazil.

The objective of this study was to compare the mortality pattern of colorectal cancer according to the social development profile of the large Brazilian cities. This was an ecological study that used as units of analysis Brazilian municipalities that were considered to be large (i.e.

[Temporal analysis of the relationship between leptospirosis and the occurrence of flooding due to rainfall in the city of Rio de Janeiro, Brazil, 2007-2012].

The scope of this study is to examine the effect of the average monthly rainfall on the risk of contracting leptospirosis in the city of Rio de Janeiro between 2007 and 2012. It involves an analytical ecological study conducted in the city of Rio de Janeiro in the 2007-2012 period. The variable for the outcome was the number of leptospirosis cases per month, and the independent variable was the average monthly rainfall recorded by the 32 monitoring stations per year.

Evolution of thyroid cancer mortality in adults in Brazil.

Objective: To assess the trend of thyroid cancer mortality in Brazil between 1980 and 2010.

Materials And Methods: An ecological study of time series. Mortality rates for thyroid cancer adjusted by age according to gender were calculated between 1980 and 2010.