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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
In South Korea, the overall period prevalence of NTM infection tended to be higher in metropolitan cities, which had greater population densities and higher income levels, than in the provinces (Table 1).
The complications with the highest period prevalence from admission and during subacute rehabilitation were UTIs (52.8%) and pneumonia (32.2%), of which some were certainly developed during subacute rehabilitation (36.7% and 11.7%, respectively) (Table 2).
Table 2 presents the unadjusted period prevalence of health-related measures among native-born Blacks and Whites.
Firstly, admission register lists of all hospitalised children were used to determine HIV status (collected from laboratory and/ or hospital records) and calculate HIV period prevalence. Secondly, individual patient records for children identified as HIV infected were reviewed.
In a study in rural southern India, the overall period prevalence of intestinal parasites was 97.4% per month.
Here, thanks to the high number of blood tests performed since 2001, period prevalence estimates of blood doping were obtained for subgroups of samples stratified according to the athletes' sex, type of sport (endurance vs nonendurance), and nationality.
'The reported 12-month period prevalence of SIN injury was 6.5%, with a significantly higher rate of 16.4% in remote areas,' said Newcastle University academics and coauthors of the study Dr Ashley Kable and Maya Guest.
Prevalence is the measure of injuries in a population at a given point in time (point prevalence) and can also be measured over a period of time (period prevalence).
Although this literature review provides a more accurate, up-to-date understanding of single adults who are homeless, counselors should use caution in reviewing their findings because some studies use point prevalence (i.e., measuring the conditions of a population at a certain point in time) as opposed to period prevalence (i.e., measuring the conditions of a population over a period of time; Friis & Sellers, 1999).
We determined period prevalence of asthma at baseline by taking the number of definition 1 or 2 asthma cases occurring from birth to 12 months after the index BLL and dividing it by the total number of children in the cohort at that time.
Prevalence rates have been calculated as the percentage of subjects who had experienced the symptom during the 12 months prior to the primary study (1 year period prevalence); incidence as the percentage of subjects who had experienced the symptom during the 12 months prior to the follow-up study among those who did not report the symptom at the primary study; and disappearance rates as the percentage of subjects who had not experienced the symptom in the year prior to the follow-up study among those reporting the symptom at the primary study.