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Definition and similar words in English:

 
(statistics) Any of the two points that divide an ordered distribution into three parts, each containing a third of the population.
 
(statistics) Any one of the three groups so divided.

Example sentences with "tertile", translation memory

(1999) dataset found that only the effect of manganese exposure on serum prolactin was more severe for individuals in the lowest tertile of serum iron status (i.e. <87 μg/dl).
For ARE5, five models with interactive effects were significant, highlighting the sensitivity of 4 sub-groups to the neurotoxic effects of manganese: 1) smokers for SPES finger-tapping and subjects with more than 20 years of smoking for the test of NVCST (left eye/1.5 cycles); 2) subjects in the highest tertile of alcohol consumption (>23.75 g/day) for the Luria Nebraska thumb-fingers test (non-dominant hand); 3) subjects in the lowest tertile of blood iron for serum prolactin; and 4) non-smokers for the CATSYS reaction time test.
After adjustment, the odds ratio for leukemia in the upper tertile was 4.45 (95% confidence interval (CI) 1.01-19.7).
A recent study of neurobehavioral deficits associated with PCBs in 7-year-old children prenatally exposed to seafood neurotoxicants in the Faroe Islands now suggests that the PCB-associated neurobehavioral deficits detected within the highest tertile of mercury exposure involved a possible interaction between methylmercury and PCBs (Grandjean et al., Neurotox.
Dichotomous/nominal/ordinal responses were coded as in the original questionnaire, and the few continuous variables were categorized into tertiles.
For each quarter, the average returns on equity are reported for the top, middle, and bottom tertiles.
Some industry-based validity studies support this idea.3,57 In the community-based setting, Fritschi et al. found that three experienced expert raters working independently were able to identify 64%, 70% and 80% of past occupational exposures, respectively, across a variety of workplaces.58 As well, in the present study, we observed no statistically significant trends in over- or underreporting across three time periods of expert assessment (PAH exposures were sorted in order of expert assessment and then split into tertiles; trends in percent under- and overreporting were p > 0.05, respectively, in Mantel-Haenzsel chisquare tests for trend), thus providing some evidence of expert consistency over time (data not shown).
OR = 3.53, 95% CI = 1.19-10.44], the OR for bromoxynil detection was 2.35 (95% CI = 0.87-6.33) for participants in the middle tertile (25.53-29.00 kg/m2) of BMI [with participants in the lowest tertile (< 25.53 kg/m2) as the reference group] and 4.01 (95% CI = 1.46-11.03) for participants in the highest tertile (> 29.00 kg/m2).
Some arbitrary reassignments were made where the average earnings of cusp fields were closer to the adjacent grouping than the others in its original tertile.
Given the small number of exposed individuals in this tertile (n=15) and the wide divergence in estimates between mathematical models, these results should be interpreted with caution but they support the assumption that iron deficiency represents a risk factor for manganese neurotoxicity.
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