# Questions tagged [population-attributable-fraction]

The proportion of cases in the entire population attributable to the exposure of interest.

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### How to calculate proportion of the population

I am trying to calculate population attributable fraction. The formula that i am using is $$\frac{P_e(RR-1)}{P_e(RR-1) + 1}$$ I am using this website as guide: https://sphweb.bumc.bu.edu/otlt/mph-...
0answers
23 views

### Attributable Risk vs Absolute Risk Reduction

I am hoping to understand the difference between attributable risk and absolute risk reduction. Mathematically, the two entities seem equivalent, but the formulas for calculating their confidence ...
0answers
16 views

### Can I redefine a non-random sample as a population?

I'm trying to catalog into a time series of incidents of a certain occurrence, primarily through online news articles, in order to gauge public awareness of a related issue. There is obviously no way ...
0answers
14 views

### Population Attributable Fraction adjusted for a variable

I am working in R tryign to estimate the population attributable fraction (PAF) for a binary outcome and 2 exposure variables that I had to coerce to become binary. I have used the "epi.2by2"...
0answers
27 views

### Population Attributable Fraction from Adjusted Risk/Rate Ratio

Assuming that there are two level of exposure and the outcome of interest is death, the PAF can be estimated following the formula as outlined here https://www.who.int/quantifying_ehimpacts/faqs/en/ ...
0answers
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### Fractional regression in r / stata [closed]

Does anyone know how to predict with the model fracreg ( fractional logit regression) in R or stata? the normal predict function didnt do the job
1answer
105 views

### Whats the difference between logistic regression and fractional response model? [duplicate]

Can anyone tell me the theory behind fractional response model, how it really works? I wonder if the logistic regression works only with binary variable {0,1}, why when conducting a GLM with ...
1answer
55 views

### Attirbutable risk from competing risks

There are a number of ways to estimate attributable risk fractions from Cox regression and logistic regression. Does anyone know how to estimate attributable risk from a competing risks regression ...
1answer
102 views

### Confidence interval for Population Attributable Fraction with several strata

I have used aggregated data to create a table of person-years (pys) and deaths by social class, age and sex. If we consider social class to be a modifiable factor, we can calculate the number of '...
0answers
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### How to calculate whether a disease outcome in a population is by chance or significant?

I have a huge dataset of longitudinal medical records. Each record contains indications for drug and disease. I have been able to calculate the Outcome Rate in the population given a particular drug....
2answers
6k views

### How much lung cancer is really caused by smoking? [closed]

On tobacco products one can often see the statistic that nine out of ten lung cancers are caused by smoking but is this number accurate? I am sceptical about this stat for two reasons. Firstly, if ...