odds


Also found in: Dictionary, Thesaurus, Legal, Acronyms, Idioms, Encyclopedia, Wikipedia.
Related to odds: Odds ratio

odds

(odz),
The ratio of probability of occurrence to nonoccurrence of an event.
[pl. of odd, fr. M.E. odde, fr. O.Norse oddi, odd number]

odds

In statistics, the probability that an event may appear or occur. This probability is estimated from known rates of occurrence of the event in a specific setting, e.g., from the known number of patients with a particular disease on a particular island. In practice most patients do not live on islands, and many have diseases whose presentation varies from the norm. The use of odds in health care always implies some degree of probability rather than of proof.

odds

a method of expressing probability, e.g. at odds of 3 to 2 this can be converted to conventional terminology by using each number as the numerator and the sum of them as the denominator, i.e. 3/5, 2/5 or 60% or 40% or 0.6, 0.4. The odds are quoted as for or against. So that at odds of 3 to 2 the chances for an event happening are 3/5. The odds against it happening are 2/5.

posterior odds
probability determined after consideration of the results of a study.
odds ratio
the ratio, used particularly in case-control studies, estimates the chances of a particular event occurring in one population in relation to its rate of occurrence in another population.

Patient discussion about odds

Q. I have weak pelvic muscles.. Ive not had any children or anything like that. And im only 20. Isnt it abit odd It dont help one little bit when you have bladder problems(and struggle to control the flow)

A. Thank you for the answer Lucy, however i forgot to mention i have actually been doing P

More discussions about odds
References in periodicals archive ?
Because of the high comorbidity of ADHD and ODD conditions, it is difficult to disentangle their individual effects on children's bullying involvement," Dr.
MICHELLE Odds 6-1 Black-eyed bunny boiler has survived for another week of stalking her chicken Stuart but her foul-mouth tantrum after being nominated may cost her dear.
He understands the odds relating to his own team's chances better than anyone and raised his eyebrows in mock surprise and said: "Those are terrible odds".
Parlay will be able to offer their customers a broad range of Orbis' non-download Flash games including casino classics, popular fixed odds concepts and unique propositions such as Lucky Star.
Andros Townsend (below) and Fabio Borini are priced up at odds of 7/1 and 8/1 respectively to score the first of the match.
The team atop the coaches and writers' poll has 12/1 odds, according to the casino.
Any odds compiler at any bookmaker could price up this fixture without giving it a moment's thought.
Males' odds of having engaged in any risk behavior during the follow-up period increased by 3% for every one-point increase on the depressive symptoms scale; the odds of nonuse of condoms, nonuse of contraceptives and substance use at last sex each rose by 2-4% per one-point increase in the level of depressive symptoms.
They just feverishly repeat the mantra of what the ``odds'' could foretell, a meaningless statement because they never tell what those odds are.
The system supplied by Ladbrokes and Cyberview will offers options for both large and small licensed premises to show live sporting events on screen together with betting odds on the outcome of events and betting in play throughout each event.
If you fancy United to record a 1-0 victory Hills are offering odds of 13/2, if you dare to bet on Steve McClaren's men going on to win 2-0, then you will be rewarded with odds of 10/1.
As the world gets caught up in baby fever with the announcement that Kate Middleton is pregnant, one online sportsbook is giving odds on the gender, name, hair color and weight of the royal child of Kate and Prince William.