The phrase "an exposure variable" is correct and usable in written English.
It is typically used in research contexts, particularly in epidemiology or statistics, to refer to a factor that may influence an outcome or effect being studied.
Example: "In this study, we will analyze the impact of an exposure variable, such as air pollution, on respiratory health."
Alternatives: "a risk factor" or "an influencing variable".
However, this earlier study only collected data when an interruption happened and thus could not investigate interruption rate as a function of primary task type and severity while controlling for primary task duration as an exposure variable.
For injuries of all types and that related to exercise, the total number of firefighters for each year, on the log scale, was considered as an exposure variable.
In particular, determining the overall effects of an exposure variable on incidence density ratios is challenging especially when the linear predictors from both the mixing proportions and the Poisson mean model contain the exposure variable (Long et al. 2014).
For the injury count of the specific tasks of FG and PT, the log number of calls in each month, prorated based on the annual count, was evaluated in the model as an exposure variable.
In this case knowledge of the HIV status by patient and health care worker would not be an exposure variable for our outcome, diagnostic delay.
On the other hand, the biological effect of HIV (in accelerating TB disease clinically or making smears more frequently negative) may have impacted as an exposure variable on diagnostic delay.
We could identify an association between HL as an exposure variable and stroke among men.
Level of LTPA is used as a dichotomous variable, a categorical exposure variable and a categorical variable of change.
The authors of the HAPO paper have discarded a linear model with BMI as a continuous exposure variable because of a statistically significant squared term of BMI.
Park et al. (2001a), using a dichotomous exposure variable, reported a 33% increase in "any wheeze" for children exposed to "high" levels of endotoxin in house dust compared with children in "low" exposure households.
Soil Pb may be an important exposure variable in these environments, possibly overwhelming exposure to other sources of Pb.
