attributable fraction

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Related to attributable fraction: Population Attributable Risk, Attributable risk

attributable fraction

The percentage of instances of an illness that can be accounted for by a particular risk factor. For example, people exposed to asbestos have a certain risk of developing lung cancer, and if they also smoke tobacco, they are also at risk from that factor. These risks may be estimated from cohort studies.

Synonym: additional risk; attributable risk

fraction

size expressed as a relative part of a unit.

attributable fraction

the proportion of disease in the exposed group which is caused by the factor.

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Attributable fractions may be lower or higher than those calculated, as there are uncertainties in calculations and competing risk factors that we have not considered when applying risk functions to our specific population (such as environmental tobacco smoke).

Risk of childhood asthma prevalence attributable to residential proximity to major roads in Montreal, Canada

93%) are less than global estimates for population attributable fraction (PAF) for mortality due to second-hand smoke exposure (1%)24 and are a fraction of the population attributable fraction for mortality due to smoking estimated for Northern and Interior BC (19%).

Burden of mortality due to ambient fine particulate air pollution ([PM.sub.2.5]) in Interior and Northern BC

This would translate to 34 481 smoking-attributable deaths, if the attributable fractions for adults > 30 years (re-estimated from Sitas et al.

Estimating the burden of disease attributable to smoking in South Africa in 2000

Although there was a significant dose-response relationship between lead exposure and ADHD, we estimated the population attributable fraction only for children who had blood lead levels in the fifth quintiles of blood lead concentration.

Exposures to environmental toxicants and attention deficit hyperactivity disorder in U.S. children

Population Attributable Fraction (PAF) Formulae and Derivations Disease + - Exposure + a b - c d The derivations are calculated using relative risk, although odds ratios were substituted for these studies with stable exposure distribution.

The population attributable fraction of asthma among Canadian children

The attributable fraction (AF) can be used to inform policies on ELF exposure.

Public health impact of extremely low-frequency electromagnetic fields

Our sensitivity analysis, in which we also varied the attributable fraction for American sources from 18% (industry data sources) to 36% (federal data sources) (Seigneur et al.

Public health and economic consequences of methyl mercury toxicity to the developing brain

The attributable fraction of disease burden in a population is determined by prevalence of exposure to the risk factor in the population and the relative risk (RR) of disease occurrence given exposure.

Estimating the burden of disease attributable to high cholesterol in South Africa in 2000

Relative risk estimates from published literature were entered into the formulas for attributable fraction given by Rockhill et al.

The effect of arsenic mitigation interventions on disease burden in Bangladesh

Risk estimates and exposure frequencies in our studies enable calculation of the attributable fraction, that is, the proportion of cases that can be attributed to the particular exposure.

Is the decline of the increasing incidence of non-Hodgkin lymphoma in Sweden and other countries a result of cancer preventive measures?

97), and the attributable fraction for myocardial infarction due to inactivity (less than 4 hours per week of moderate or strenuous activity) was estimated to be 12.

Estimating the burden of disease attributable to physical inactivity in South Africa in 2000

In this pioneering area, they estimated an environmentally attributable fraction (EAF) for each disease by convening a panel of several experts for each disease.