What makes large epidemiological studies comparable?

نویسندگان

  • I Cerveri
  • R De Marco
چکیده

R epeated cross-sectional surveys have been largely used to assess temporal trends in the prevalence of diseases. To be reliable, these should respect the following simple, but essential, rules: 1) the same source population should be randomly sampled and studied on different occasions, using the same sampling frame; 2) similar numbers of subjects should be selected; 3) the disease should be diagnosed by using the same criteria and identical protocols; and 4) the data should be analysed by specific statistical techniques with appropriate adjustments of the differences in response rates.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Underreporting of patient safety incidents reduces health care's ability to quantify and accurately measure harm reduction.

Underreporting of patient safety incidents creates a reservoir of information that is plagued with epidemiological bias. These include systematic biases such as the practice of reporting minor incidents at the expense of more serious ones. This leads to inaccurate rates of errors and an inability to generalize results to whole patient populations. It leaves reporting incidents, in epidemiologic...

متن کامل

Comparison of diagnostic criteria for Atopic dermatitis in epidemiological studies

Atopic dermatitis is one of the commonest childhood diseases. Large variations in the prevalence of the disease have been observed in different studies. This variation in the prevalence may be not only from genetic and environmental factors but also from methodology of estimating prevalence of the disease. In this study, Hanifin and UKWP criteria have been used in determining prevalence of the ...

متن کامل

Health and well-being among child immigrants in Europe

Previous studies on the health of childimmigrants were carried out primarily in the USA, with fewer studies carried out in Europe.2,3 Findings from these studies were equivocal. Some studies found that immigrant children fare worse compared to their native peers in relation to mental health, risk behaviour, academic achievements, health and well being,4,5 some reported that immigrant children f...

متن کامل

Recommendations for epidemiological studies on COPD.

The prevalence of chronic obstructive pulmonary disease (COPD) has been extensively studied, especially in Western Europe and North America. Few of these data are directly comparable because of differences between the surveys regarding composition of study populations, diagnostic criteria of the disease and definitions of the risk factors. Few community studies have examined phenotypes of COPD ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • The European respiratory journal

دوره 36 4  شماره 

صفحات  -

تاریخ انتشار 2010