Because of a low prevalence rate, relevant risk factors such as hyponatraemia, alcohol misuse, and dementia were excluded from the multivariate logistic regression analysis.
However, in contrast to other reports [ 6, 22], we did not find a significant association between knee alignment and bone marrow lesions, possibly because of a low prevalence of ROA in this sample.
Previous non-melanoma skin cancer was a very strong risk factor in our study (OR 9), however because it had a low prevalence, the contribution to the AUC and more particularly to NRI was modest.
Because of such a low prevalence, it has been suggested that CT may not be necessary in such patients and that the pre-operative staging should be limited to plain chest radiographs.
Inhibitory factors were unlikely to be associated with such a low prevalence because spiked controls were systematically detected.
In Yunnan Province, YN-D (which belongs to China clade III) appeared to be present at a low prevalence because no other specimens of this type were documented.
There was a limit to the accurate estimation of life expectancy and lifetime medical expenditure for obese participants because the Japanese population has a low prevalence of body mass index≥30.0 kg/m.
However, because of the limited sample sizes, a low prevalence cannot be excluded.
Because of this finding, there was a low prevalence of small mammals in this area, and only a low number of rodents and insectivores were trapped during the epidemiologic investigation (Table 3).
In a normal population we can expect a low prevalence of the tests; this is likely to result in low reliability because the lower prevalence of positive findings gives a large influence of Kappa values in the case of disagreement.
