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  • noun

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(statistics) any of three points that divide an ordered distribution into four parts each containing one quarter of the scores

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The incidence of new-onset atrial fibrillation during 3 years of follow-up was 4.1% in patients in normal-range quartile 1, 4.3% in quartile 2, 4.5% in quartile 3, and 5.2% in the top normal-range quartile.
Between group (quartiles, recreational) comparisons for variance in heart rate profiles during the exercise test were analyzed through an Analysis of Variance (ANOVA) (Statistica[TM], Statsoft).
Based on the crude model, participants with P[M.sub.2.5] values in the third and fourth quartiles had higher SBP than participants in the lowest quartile of P[M.sub.2.5], and those in the second, third, and fourth quartiles had higher PP than participants in the lowest quartile of P[M.sub.2.5] (Table 3).
The fraction of mortgage delinquencies accounted for by the lowest quartile of credit scores dropped from the normal 40% to 30% and the fraction of foreclosures from 70% to 35%.
The specification in Table 3 therefore relaxes that assumption by including EF categorized in four quartiles that are interacted with inequality; the baseline comparison is therefore the quartile with the least economic freedom.
In our study, the IOP in the first quartile of free T4 and T3 were higher than those in the second or other quartiles.
48% in quartiles 4 and 1, respectively; for medical therapy, 79% vs.
Lifestyle modification reduced risk in all quartiles with progressively greater effect as risk increased (lowest risk quartile: ARR=4.9%, 3-year NNT=20.4; highest risk quartile: ARR=28.3%; 3-year NNT=3.5).
(17) Each graph displays the 40 estimated [beta] coefficients with NYC load deciles across the horizontal axis and spread quartiles connected by lines.
The methodology for this study consisted of binning every event in every year into quartiles and then analyzing the results of the top quartile in each event.
Multivariate logistic regression modeled the effect of each antibody (defined in quartiles) on the outcome after adjustment for study center, gravidity (primigravidae versus multigravidae), and P.
Who travels and where they end up From black communities 44% of students travel elsewhere Mixed (White/Latino) 38% travel White 32% travel Latino 28% travel Note: School quartiles are based on 2014 state test scores Source: Chicago Public Schools, U15.
In Table 3, the average (with standard deviation) and median (with 25th and 75th quartiles) values are reported for deposition velocities, fluxes, concentrations, and normalized deposition velocities (Vd/[w.sup.*]) considering whole dataset, that is, data in every atmospheric stability conditions.
Therefore, anxiety scores were analyzed as sex-specific trait anxiety quartiles (QANX; 1 = first, 2 = second, 3 = third, and 4 = fourth quartile) based on the STPI scoring manual, as these quartile scores differ by sex.