prevalence

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prevalence

[′prev·ə·ləns]
(genetics)
The frequency with which a medical condition is found in specific population at a specific time.
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References in periodicals archive ?
HM is not appropriate for all patients, and the 75% positive level III test rate indicates that patients referred to the Sleep Well Program have at least moderate pretest probability of OSA.
Investigating Cost Implications of Incorporating Level III At-Home Testing into a Polysomnography Based Sleep Medicine Program Using Administrative Data
The model was adjusted for gender, age, the number of other risk factors, pretest probability, EF, appropriate stress test, patients (admitted or out), and symptom.
Impact of Clinical Guideline Recommendations on the Application of Coronary Computed Tomographic Angiography in Patients with Suspected Stable Coronary Artery Disease
Nonsurgical biopsy is also recommended when the patient's pretest probability and imaging test results are discordant, when a benign diagnosis requires specific medical treatment, or if a fully informed patient desires proof of diagnosis prior to surgery.
Pulmonary nodule on x-ray: an algorithmic approach
In this study high post-test diagnostic probability for the absence of coronary artery disease with a negative EST occurred when individual pretest probability of disease (PPD) levels equaled or fell to below 60%, and high post-test diagnostic certainty for CAD was reached for a positive EST when individualized PPD levels equaled or exceeded 89.6%.
Clinical implications of ST segment time-course recovery patterns during the exercise stress test
To illustrate the impact of pretest probability and assay performance on the posttest probability clinical examples are provided (unpublished data, based on expert experience of Pier-Luigi Meroni).
Current concepts and future directions for the assessment of autoantibodies to cellular antigens referred to as anti-nuclear antibodies
(4) An understanding of the patient population, patient pretest probability of CAD, Bayes' theorem, and the risk, benefits and limitations of each technology will enable the medical imaging professional to assist clinicians with test selection.
Cardiac CT, MR, SPECT, ECHO, and PET: What test, when?
In their study, 3%, 17% and 75% of the patients with low, mode and high pretest probability, respectively, had DVT.
Proceedings of the symposium on the management of established deep vein thrombosis involving the lower limb, held in Durban, march 2010
There is a high negative predictive value when the pretest probability is low.
Diazyme adenosine deaminase in the diagnosis of tuberculous pleural effusion: method evaluation and clinical experiences in a New Zealand population
Pretest probability. Dr Lee might have used the Wells prediction rule to help diagnose Julie's condition.
With heavy steps: diagnosing leg edema: the tired feeling in your patient's legs may be bothersome but benign--or could indicate significant morbidity
Because a number of situations other than DVT and PE can elevate serum levels of d-dimer Table IIa scoring method using a clinical assessment model to determine pretest probability of DVT and PE has been useful in the diagnostic approach.
The D-Dimer assays and their utility in the detection of deep vein thrombosis and pulmonary embolism
"If you apply [these tests] to populations that are at low pretest probability of having the disease, most of your results will be false positives."
Interpreting serology tricky in Epstein-Barr mono
This would increase the pretest probability of the impairment and consequently increase the protective value derived from changes to the underwriting requirements tailored to detect that impairment.
Reassessing underwriting strategies: protective-value studies can help assess mortality risks as well as value the possible cost of losing good business

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