Sentence examples for stratification of exposure from inspiring English sources

A related limitation was a lack of stratification of exposure levels and housing hazards.

Using job titles as the basis for stratification of exposure, studies showed that subjects in occupations with high exposure to traffic emissions had higher levels of FPG sites (Avogbe et al. 2005; Cavallo et al. 2006; Palli et al. 2009) and 8-oxodG and M1dG (Ayi Fanou et al. 2006; Singh et al. 2007) in WBCs than did referents.

The regression model was also performed using a dichotomized stratification of exposure < or > 6 μg/g, based on the WHO hair mercury 'reference level' recommended for children and pregnant women exposed to MeHg since it is the only available international guideline for adult exposures within a range relevant to nonoccupational settings [ 20].

The self-controlled case series design encourages stratification of the exposure time.

In the absence of a gold standard test for diagnosis of LTBI, current clinical management of patients with IMID requiring anti-TNF therapy involves checking for a history of untreated or partially treated TB, risk-stratification for exposure to cases of active TB, evidence of residual changes indicative of prior TB infection on a chest radiograph and a tuberculin skin test (TST).

Screening for LTBI should include checking for a history of untreated or partially treated TB, risk-stratification for exposure to cases of active TB and searching for evidence of residual changes indicative of untreated prior TB infection on a chest radiograph (e.g. calcified granulomas, Gohn focus or complex, apical scarring).

Table 2 shows the stratification of prenatal SHS exposure based on cord blood cotinine in the five categories defined previously.

3. Spring-neap tidal stratification largely determined levels of exposure to low DO water, with greater vertical extent during spring tides and greater horizontal and benthic impacts during neap tides.

Further stratification according to duration of exposure and dosage yielded similar results, although all statistically nonsignificant (Table S4).

In this respect, stratification of results by duration of exposure to metformin, as well as considering whether a dose-response association was present, would have been very helpful: if metformin use truly reduced the incidence of colorectal cancer, we would expect the protective effect to be greater with longer duration of metformin use.

Indicator variables defined from mean age-at-exposure (cell data) are identical to those defined from the age-at-exposure stratification of the dataset.