It may not be nicotine per se that constitutes the risk factor, but other chemical substances in the delivery devices that women are exposed to concomitantly.
Each factor was given a coefficient score, and the sum of scores of all risk factors constituted the risk score (range: 0 71.8).
Moreover, it has been suggested that the stress of transport itself rather than contact to other animals (exposure to "new" strains) constitutes the risk factor [ 28].
Since our main outcome was gestational week specific perinatal mortality, and approximately 2/3 of perinatal death are stillbirths, we also estimated the risk of stillbirth by gestational week separately, using the fetus at risk approach, where ongoing pregnancies at each week constituted the risk population.
From current risk scoring systems, as well from current data, it is obvious that older men (>65 years) with risk factors, or older women with diabetes and risk factors, constitute the highest risk group.
These methodologies seek to define and manage the risk associated with individual equipment and piping within a pressure system, such that items that constitute the highest risk receive the greatest attention from the inspection regime.
The "higher risk" unemployed include less-skilled, foreign and female workers, while young, skilled, Swiss, male workers constitute the "lower risk" unemployed.
Therefore, future work should focus on finding additional measures are necessary to manage OSR volunteers which constitute the major risk factor for OSR harvest purity.
Together with caesium-134, iodine-131, and strontium-90, caesium-137 was among the isotopes distributed by the Chernobyl disaster which constitute the greatest risk to health.
