Burden of household environmental tobacco smoke on medical expenditure for Japanese women: a population-based cohort study

Prevalence of passive smoking in the community population aged 15 years and older in China: a systematic review and meta-analysis

OBJECTIVES

To estimate the prevalence and distribution of passive smoking in the community population aged 15 years and older in China.

DESIGN

A systematic review and meta-analysis of cross-sectional studies reporting the prevalence of passive smoking in China and a series of subgroup, trend and sensitivity analyses were conducted in this study.

DATA SOURCE

The systematic review and meta-analysis, which included 46 studies with 381,580 non-smokers, estimated the prevalence and distribution of passive smoking in China. All studies were published between 1997 and 2015.

RESULTS

The pooled prevalence of passive smoking was 48.7% (95% CI 44.8% to 52.5%) and was relatively stable from 1995 to 2013. The prevalence in the subgroups of gender, area, age and time varied from 35.1% (95% CI 31.8% to 38.3%) in the elderly (≥60 years) to 48.6% (95% CI 42.9% to 54.2%) in urban areas. The prevalence was lower in the elderly (≥60 years) than in those between 15 and 59 years of age (OR 1.61, 95% CI 1.44 to 1.81). The difference between females and males in urban and rural areas was not statistically significant (OR: 1.27, 95% CI 0.93 to 1.74 and OR: 1.14, 95% CI 0.82 to 1.58, respectively). In addition, a significantly increasing trend was found among males from 2002 to 2010. Heterogeneity was high in all pooled estimates (I(2)>98%, p<0.001).

CONCLUSIONS

The high and stable prevalence of passive smoking in China is raising increasing national concern regarding specific research and tobacco control programmes. Attention should be focused on young, middle-aged and male non-smokers regardless of region.

Undiagnosed MODY: Time for Action

Maturity-onset diabetes of the young (MODY) is a monogenic form of diabetes that accounts for at least 1 % of all cases of diabetes mellitus. MODY classically presents as non-insulin-requiring diabetes in lean individuals typically younger than 25 with evidence of autosomal dominant inheritance, but these criteria do not capture all cases and can also overlap with other diabetes types. Genetic diagnosis of MODY is important for selecting the right treatment, yet ~95 % of MODY cases in the USA are misdiagnosed. MODY prevalence and characteristics have been well-studied in some populations, such as the UK and Norway, while other ethnicities, like African and Latino, need much more study. Emerging next-generation sequencing methods are making more widespread study and clinical diagnosis increasingly feasible; at the same time, they are detecting other mutations in the same genes of unknown clinical significance. This review will cover the current epidemiological studies of MODY and barriers and opportunities for moving toward a goal of access to an appropriate diagnosis for all affected individuals.

A política antitabagismo e a variação dos gastos das famílias brasileiras com cigarro: resultados das Pesquisas de Orçamentos Familiares, 2002/2003 e 2008/2009

O estudo teve como objetivo descrever a evolução dos gastos com cigarro das famílias brasileiras e seu peso sobre a renda dessas no período de 2002-2009. Foram utilizados dados da Pesquisa de Orçamentos Familiares (POF) de 2002/2003 e 2008/2009. Foi realizada correção dos valores mediante o Índice de Preços ao Consumidor Amplo (IPCA). A proporção de famílias que tiveram gastos com cigarro reduziu de 23,5% para 18,2%, no período estudado, mas o valor do gasto aumentou de R$ 55,36 para R$ 59,45. O gasto foi maior à medida que aumentavam a renda e a escolaridade do chefe das famílias. As famílias com maior renda concentram a maior parte desses gastos, apesar da redução de sua contribuição no gasto total com cigarro. O comprometimento da renda na aquisição de cigarros foi de 5,2% no primeiro e de 1,2% no último quinto de renda. A política antitabagismo logrou êxitos na redução da prevalência do tabagismo no Brasil. Porém, medidas econômicas ainda são importantes no contexto nacional, tendo em vista que a parcela da renda e da despesa das famílias comprometida com cigarro apresentou redução.