The mite Oxycenus maxwelli (Keifer) (Eriophyidae) is reported for the first time in Brazil infesting olive trees, Olea europaea. Specimens were found on seedlings at Maria da Fé, state of Minas Gerais, in 2007. Although minor symptoms were not noticed, significant damage to plants were observed. There is no reliable evidence of when the mite could have been introduced. It is believed that the mite occurs since the first introductions of olive trees, around 1820, through vegetative propagating material, but the mite remained unnoticed due to the lack of studies with olive trees in Brazil.

O artigo teve por objetivo analisar as metodologias publicadas e empregadas no cálculo da mortalidade atribuível ao fumo. Foram pesquisadas as bases de dados eletrônicas MEDLINE, LILACS entre 1990 e 2006. Foram encontrados 186 estudos que apresentaram a mensuração de mortalidade a partir do cálculo da fração atribuível ao fumo. Desses, foram selecionados 41 artigos. Os estudos realizados nos Estados Unidos e Canadá apresentaram metodologia uniformizada e taxas de mortalidade entre 18%-23%; 25%-29% no sexo masculino e 14%-17% no feminino. As variações metodológicas podem justificar as diferenças da mortalidade entre os estudos e nas estimativas para as principais doenças tabaco-relacionadas.

The objective of the article was to assess methodologies published and applied in calculating mortality attributable to smoking. A review of the literature was made for the period 1990 to 2006, in the electronic databases MEDLINE and LILACS. A total of 186 studies were found, which measured mortality based on calculating the smoking-attributable risk. Of these, a total of 41 were selected. The studies that were carried out in the United States and Canada presented a more standard methodology and reported smoking attributable mortality to be 18%-23%, with male mortality being 25%-29% and female mortality 14%-17%. The variations can be attributed to methodological differences and to different estimates of the main tobacco-related illnesses.

O artigo teve por objetivo analisar as metodologias publicadas e empregadas no cálculo da mortalidade atribuível ao fumo. Foram pesquisadas as bases de dados eletrônicas MEDLINE, LILACS entre 1990 e 2006. Foram encontrados 186 estudos que apresentaram a mensuração de mortalidade a partir do cálculo da fração atribuível ao fumo. Desses, foram selecionados 41 artigos. Os estudos realizados nos Estados Unidos e Canadá apresentaram metodologia uniformizada e taxas de mortalidade entre 18%-23%; 25%-29% no sexo masculino e 14%-17% no feminino. As variações metodológicas podem justificar as diferenças da mortalidade entre os estudos e nas estimativas para as principais doenças tabaco-relacionadas.

The objective of the article was to assess methodologies published and applied in calculating mortality attributable to smoking. A review of the literature was made for the period 1990 to 2006, in the electronic databases MEDLINE and LILACS. A total of 186 studies were found, which measured mortality based on calculating the smoking-attributable risk. Of these, a total of 41 were selected. The studies that were carried out in the United States and Canada presented a more standard methodology and reported smoking attributable mortality to be 18%-23%, with male mortality being 25%-29% and female mortality 14%-17%. The variations can be attributed to methodological differences and to different estimates of the main tobacco-related illnesses.