Epidemiologic studies of farmers have linked pesticides with certain cancers. Information on exposures from many of these studies was obtained by interview of farmers or their next-of-kin. The reliability and validity of data on pesticide use obtained by recall, often years after the event, have been questioned. Pesticide use, however, is an integral component in most agricultural operations, a...

The Nordic countries have a long tradition of register-based epidemiologic studies. Numerous population-based specialized registers offer high-quality data from individuals, and the extensive use of register data further improves the quality of the registers. Unique personal identity codes given to every resident and used in all registers guarantee easy and accurate record linkage. A legislatio...

The measurement and analysis of common recurrent conditions such as diarrhoea, respiratory infections or fever pose methodological challenges with regard to case definition, disease surveillance and statistical analysis. In this paper we describe a flexible and robust model that can generate simulated longitudinal datasets for a range of recurrent infections, reflecting the stochastic processes...

ford Depository: British American Tobacco, Bates No 203465873-93. 14 Marr M, Sims D. Uzbekistan marketing plan 1994-2003. Discussion draft 3. Guildford Depository: British American Tobacco, Bates No 203459117-35. 15 Draft 2,Project Umpire, Skeleton business Plan. Guildford Depository: British American Tobacco, Bates No 600507395-420. 16 Wells W. Project Umpire:Bain Link Market Sizing Model. 11/...

BACKGROUND Chronic pain is a major public health problem. The impact of stages of chronic pain adjusted for disease load on societal burden has not been assessed in population surveys. METHODS A cross-sectional survey with 4360 people aged  ≥ 14 years representative of the German population was conducted. Measures obtained included demographic variables, presence of chronic pain (based on the...

Little has been written on the challenges of conducting research in regions or countries with chronic conflict and strife. In this paper we share our experiences in conducting a population based study of chronic diseases in the occupied Palestinian territory and describe the challenges faced, some of which were unique to a conflict zone area, while others were common to low- and middle- income ...

Of the commonly accepted tools for assessing habitual dietary intake in epidemiological studies, the one that is most often used in population surveys is the food frequency questionnaire (FFQ) (Briefel et al., 1992; Kushi, 1994). When using the FFQ, the results generally represent usual intakes over an extended period and are easier to collect and process. The FFQ is then used to study associat...

There is an increased interest in the use of epidemiological methods in highway safety analysis. The case-control and cohort methods are commonly used in the epidemiological field to identify risk factors and quantify the risk or odds of disease given certain characteristics and factors related to an individual. This same concept can be applied to highway safety where the entity of interest is ...

Mobile phone use, predominantly smartphones, is almost ubiquitous amongst both adults and children. However adults and children have different usage patterns. A major challenge with research on mobile phone use is the reliability of self-reported phone activity for accurate exposure assessment. We investigated the agreement between self-reported mobile phone use data and objective mobile operat...