Example sentences of "[art] prevalence rate " in BNC.
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| 1 | The prevalence rate of hypercholesterolaemia in diabetics has been reported to be similar to the non-diabetic population , that is from 8 per cent to as high as 52 per cent ( Hayes , 1972 ) . |
| 2 | The main conceptual tools of epidemiology are the incidence rate and the prevalence rate of disease . |
| 3 | The incidence rate measures how many new cases of a disease appear in a given period , whereas the prevalence rate measures how many cases in total exist , either at one point of time ( the point prevalence rate ) , or in a fixed period ( the period prevalence rate ) . |
| 4 | The incidence rate is necessary for studying the causal factors associated with illness , but the prevalence rate is better at reflecting the cost of disease to a community . |
| 5 | There are two key measures : ( 1 ) the incidence rate ( the number of new cases over a given period , usually a year ) and ( 2 ) the prevalence rate ( the number of cases/persons affected in the population at a particular moment in time ) . |
| 6 | If primary prevention is successful the number of new cases ( the incidence ) should reduce , while if secondary or tertiary prevention is successful then the prevalence rate should reduce . |
| 7 | She feels they might underestimate the prevalence and notes that in the American study by Russell ( 1986 ) , which was particularly careful in choosing and training interviewers , the prevalence rate uncovered , for intrafamilial and extrafamilial sexual abuse was 58 per cent when non-contact abuse was included and 38 per cent when it was excluded . |
| 8 | This reflects the point made earlier that disability is a continuum and that the threshold at which disability is defined determines the prevalence rate . |
| 9 | Within each type of disability there is a consistent pattern of the prevalence rate increasing with age . |
| 10 | As was illustrated earlier , two well conducted surveys of chronic health problems produced differing prevalence rates ; the inclusion ( or exclusion ) of the institutionalized population within the prevalence rate will also influence the resultant prediction . |
| 11 | The study of the survival of those with a specific disease is important because survival rates combined with incidence rates determine the prevalence rate . |
| 12 | Any change in the survival rate of those with dementia is of importance as this would influence the prevalence rate for the disease . |
| 13 | There is little evidence that the prevalence rate is age-related ( see Figure 5.2 ) . |
| 14 | The prevalence rate of mental disorders — the proportion of the total population affected — is set to increase around the globe by the year 2000 . |
| 15 | One study has shown that there is a prevalence rate of 5–10 per cent of pre-school children ( Maloney and Klykylo 1983 ) . |
| 16 | Without some idea of the denominator it is impossible to calculate a prevalence rate . |
| 17 | Three of these studies suggest , for the institutional elderly population as a whole , a prevalence rate of approximately 30 per cent ( Ames et al . |
| 18 | Henderson ( 1990 ) suggests a prevalence rate for Japan of 4 — 6 per cent . |
| 19 | In further surveys in that area , greyhounds have shown a prevalence rate of 18% , but there is no evidence of breed susceptibility . |