matched group

matched group

See group.
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The study involved a a group of 12 teenage female football players and a matched group of non-players.
Researchers did not find increases in 16 autoimmune conditions in the vaccinated population, compared with a matched group of unvacci-nated girls and women.
The young people sentenced to IF were compared to a matched group, the majority of whom were sentenced to custody.
The study compared expenditures for commercially insured individuals in four Oregon health plans from 2005-2008 and a matched group of insured people who were exempt from parity.
A matched group was drawn from 9,364 participants of the third National Health and Nutrition Examination Survey (NHANES III).
A team led by Reza Malekzadeh of the Digestive Disease Research Centre at Tehran University of Medical Sciences looked at 300 people who had been diagnosed with a throat tumour and a matched group of 571 healthy people who lived in the same area.
Scientists at the Mayo Clinic, in Rochester, Minnesota, US, compared 196 people who suffered Parkinson's with a matched group who did not.
14 /PRNewswire/ -- A 10-year community-based study shows that people who followed the Slim-Fast meal replacement plan to manage their weight were, on average, nearly 33 pounds thinner after a decade when compared to a matched group from the same community who did not participate in the study's meal replacement plan.
Researchers in Sweden compared personality traits in a group of runners who had suffered a previous tibial stress fracture (a classic overtraining injury) with an otherwise matched group of runners who had never experienced a stress fracture.
The result: Surviving records contain the best information elements from all records in the matched group.
This is an evenly matched group, so a victory is always important.
Their stored blood samples were then analyzed for PCBs and DDT and compared with stored samples from a matched group of cancer-free nurses.