quartile


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quartile

Astrology denoting an aspect of two heavenly bodies when their longitudes differ by 90?

quartile

[′kwȯr‚tīl]
(statistics)
The value of any of the three random variables which separate the frequency of a distribution into four equal parts.
References in periodicals archive ?
For the highest quartile in BMI variability, compared with the lowest, the risk of all-cause mortality increased by 53% (HR, 1.53; 95% CI, 1.50-1.57), MI by 14% (HR, 1.14; 95% CI, 1.09-1.18), and stroke by 14% (HR, 1.14; 95% CI, 1.10-1.18).
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).
Negative associations were observed for the second and third quartiles, and the reasons for this phenomenon are unclear.
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 conclusion, our results showed that the IOP tend to be decreased slightly as the quartile of free T4 and T3 increased.
Even more disappointing was data showing that the best-performing equity funds -- in the top quartile -- are more likely to become the worst performing funds -- in the bottom quartile -- than vice versa.
A post-hoc analysis of a prospective RCT (the Diabetes Prevention Program) comprising 3081 patients with impaired glucose metabolism who received metformin, a lifestyle modification program, or no intervention (placebo) found that metformin reduced the risk of developing diabetes only for patients in the highest risk quartile over 2.8 years.
In terms of asset reliability, Emerson found that Top Quartile performers spend half as much on maintenance compared with average performers and operate with an incremental 15 days of available production each year.
In load deciles 5-10, the generation levels are significantly higher during spread quartile 1.
8 percent had airway restriction, compared to 29.8 percent in the bottom quartile.
In order to determine which events are predictors of total physical fitness, the methodology in this study focused solely on the "high performers" or candidates who scored in the top quartile in each event.