News tagged with risk factors
(HealthDay)—Blood levels of free fatty acids are associated with insulin resistance during young adulthood and cardiovascular risk factors in later adulthood, according to a study published online May 13 ...
Cardiology May 17, 2013 | not rated yet | 0 |
A new study looking at the genomes of more than 13,000 men identified four new genetic variants associated with an increased risk of testicular cancer, the most commonly diagnosed type in young men today. The findings from ...
Genetics May 12, 2013 | 5 / 5 (1) | 0 |
People in the military who suffer more than one mild traumatic brain injury face a significantly higher risk of suicide, according to research by the National Center for Veterans Studies at the University of Utah.
Psychology & Psychiatry May 15, 2013 | 5 / 5 (1) | 0 |
Having too much body fat makes arteries become stiff after middle age, a new study has revealed.
Cardiology May 15, 2013 | 5 / 5 (4) | 0 |
(Medical Xpress)—UCLA life scientists have identified a gene previously implicated in Parkinson's disease that can delay the onset of aging and extend the healthy life span of fruit flies. The research, ...
Genetics May 06, 2013 | 4.8 / 5 (18) | 1 |
Cancer research has taken a huge leap forward with scientists now able to identify more than 80 genetic markers found to increase the risk of breast, ovarian and prostate cancer. The COGS international research ...
Genetics May 15, 2013 | 5 / 5 (2) | 0
Having a hysterectomy with or without ovary removal in mid-life does not increase a woman's risk of cardiovascular disease compared to women who reach natural menopause, contrary to many previously reported studies, according ...
Cardiology May 14, 2013 | not rated yet | 0
(Medical Xpress)—Are high school age students who show aggression toward their peers more likely to consume alcohol, tobacco and marijuana? A new study of Latino adolescents in Kansas City, Mo., confirms this idea. But ...
Psychology & Psychiatry May 14, 2013 | not rated yet | 1
People with job stress and an unhealthy lifestyle are at higher risk of coronary artery disease than people who have job stress but lead healthy lifestyles, found a study published in CMAJ (Canadian Medical Association Journal). ...
Cardiology May 13, 2013 | not rated yet | 0
Recent studies that examine links between sodium consumption and health outcomes support recommendations to lower sodium intake from the very high levels some Americans consume now, but evidence from these studies does not ...
Health May 14, 2013 | not rated yet | 0
(Medical Xpress)—Women who engage in "fat talk"—the self-disparaging remarks girls and women make in relation to eating, exercise or their bodies—are less liked by their peers, a new study from the ...
Psychology & Psychiatry May 09, 2013 | 5 / 5 (1) | 0
(HealthDay)—For patients with multiple cardiovascular risk factors or atherosclerotic vascular disease who have not had a myocardial infarction, daily treatment with n-3 fatty acids does not reduce cardiovascular ...
Cardiology May 09, 2013 | not rated yet | 0
(Medical Xpress)—Adults who say they bullied others when they were adolescents may have a higher likelihood of engaging in criminal behavior later in life, according to new research from UT Dallas.
Psychology & Psychiatry May 09, 2013 | not rated yet | 1
(HealthDay)—Women who come down with the flu during pregnancy may be at increased risk of having a child who develops bipolar disorder, a new study suggests.
Psychology & Psychiatry May 08, 2013 | 5 / 5 (1) | 0 |
(Medical Xpress)—Toddlers living in socially-deprived areas are at the greatest risk of suffering a scald in the home, researchers at The University of Nottingham have found.
Health May 09, 2013 | not rated yet | 0
A risk factor is a variable associated with an increased risk of disease or infection. Risk factors are correlational and not necessarily causal, because correlation does not imply causation. For example, being young cannot be said to cause measles, but young people are more at risk as they are less likely to have developed immunity during a previous epidemic.
Risk factors are evaluated by comparing the risk of those exposed to the potential risk factor to those not exposed. Let's say that at a wedding, 74 people ate the chicken and 22 of them were ill, while of the 35 people who had the fish or vegetarian meal only 2 were ill. Did the chicken make the people ill?
So the chicken eaters' risk = 22/74 = 0.297 And non-chicken eaters' risk = 2/35 = 0.057.
Those who ate the chicken had a risk over five times as high as those who did not, suggesting that eating chicken was the cause of the illness. Note, however, that this is not proof. Statistical methods would be used in a less clear cut case to decide what level of risk the risk factor would have to present to be able to say the risk factor is linked to the disease (for example in a study of the link between smoking and lung cancer). Even then, no amount of statistical analysis could prove that the risk factor causes the disease; this could only be proven using direct methods such as a medical explanation of the disease's roots.
The earliest use of risk factor analysis dates back to Avicenna's The Canon of Medicine (1020s), though the term "risk factor" was first coined by heart researcher Dr. Thomas R. Dawber in a landmark scientific paper in 1961, where he attributed heart disease to specific conditions (blood pressure, cholesterol, smoking).
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