We found an inverse dose response relationship in which quartiles of patella lead correlated with cord LINE-1 methylation (p for trend = 0.01) and and tibia lead correlated with Alu methylation (p for trend = 0.05).
A test model in which quartiles of exposure were created from total GHGE and land use divided by total energy intake, GHGE/k Jand m/kJ, showed very similar results (results not shown).
Schools were asked to report which quartile of ability they perceived each child to be in.
Values obtained from these measurements were plotted using the box-plot option from Origin 7.5 (Microcal, OriginLab, Northampton, MA), in which the quartiles represent the 25th to 75th percentile.
Further analyses were done by dividing the cohort by quartiles of cartilage volume loss in which the first quartile demonstrated greater cartilage volume loss.
However, to further explore the risk factors that are selectively associated with more rapid disease progression, we performed analysis of cartilage volume loss by quartile in which we segregated the first quartile (greatest loss) from the fourth (least loss).
Patients were grouped into quartiles of ERI, in which the highest ERI quartile corresponds with ESA resistance.
Once you have obtained your own scores online, you can identify the quartile in which your scores fall and reflect on how they match your prior expectations about where you stand.
If the only restriction is a premium for night work and weekly holiday work, a score of 0, 0.66, 0.66, or 1 is given according to the quartile in which the economy's premium falls.
This is supported by FE-regressions restricted to BMI < 23 kg/m (first <span class="lh">quartile), in which physical activities raised BMI significantly (total sample: p < .01; women: p < .001), whereas if we restricted the FE-regression to other BMI values (e. g. BMI > 25 kg/m, BMI > 28 kg/m), no significant effects were observed.
