U-curve phenomenon

(redirected from U-shaped curve)

U-curve phenomenon

A dose-incidence mortality curve that describes the relationship between alcohol intake and the risk of coronary artery disease (CAD)-related death. The U-curve phenomenon also occurs in weight loss/gain, where those subjects with the most stable weight have the lowest mortality for all non-malignant causes and CAD. Mortality may increase in patients who undergo frequent weight cycling.
References in periodicals archive ?
According to the study, our happiness levels follow a U-shaped curve; the probability of depression bottoms out at about 44 and, by the time you are 70, you should feel as happy as a 20-year-old again.
A study by Northumbria University academics has found that although computer users are increasingly willing to disclose sensitive personal information online, there is a U-shaped curve whereby the youngest and oldest members of society are less protective of their privacy than those who are middle-aged.
This relationship can be shown by an inverted U-shaped curve (see Figure 1).
In the context of an intra-household human capital allocation model, this generates an inverted U-shaped curve where gender inequality increases as f falls.
The mortality and BMI data showed a strong U-shaped curve, with the lowest mortality in the BMI range of 25 to less than 35.
Moreover, Table 5 shows that standard deviation takes an inverse U-Shaped curve. It is much higher during the crises than before and after the crises, actually the standard deviation of DJIA during the crises is 2.5 folds DJIA before, the standard deviation of S&P during the crises is 3 folds of S&P before, and finally the standard deviation of NASDAQ during the crises is 2.6 folds than that of NASDAQ before.
You might wonder if the U-shaped curve is something peculiar to selenium and cancer.
The latest data include nearly 2 million births and show a shallow U-shaped curve relating NCAs to maternal age.
Terry put on the screen was one showing a U-shaped curve on moderate alcohol consumption and overall mortality.
But, as is the case for all voters, McCain's relative advantage is greatest among college graduates, and the data to a degree reflect the same U-shaped curve evident among all voters.
Orsolya Lelkes, economic policy analyst at the European Centre for Social Welfare Policy and Research in Vienna, says that life satisfaction progresses along a U-shaped curve as one ages, starting out very high at the onset of adulthood, ages 16-29, moving steadily downward throughout ages 30-39, and bottoming out between 40 and 49 before rising again though the 50s and 60s.
They found people followed a U-shaped curve of psychological well-being reaching the lowest point during their 40s.