(Though the real prevalence of sexting is hard to pin down).
It's a pale shadow of what the real prevalence rate is because of the way that data is derived".
However, as paroxysms are usually associated with other headaches, it may be difficult to estimate PSH real prevalence because the associated headaches would receive more attention [3].
MCPyV DNA was detected, with lower frequency, in different skin cancers but since the viral load was usually low, the real prevalence of viral DNA could be underestimated.
This phrasing is likely to cause underestimation of the "real" prevalence of headache, as people with a mild headache might not reply yes to question about suffering from headache.
Although its real prevalence is not well known, due to the current absence of a universal accepted definition which allows questioning the inclusion criteria and assessment of many published studies, the analyses with higher statistical significance report 30%.
And here are facts that cannot be disputed: Because so many victims of abuse do not report their abuse, its real prevalence is not known.
Finally, there is a critical gap in research to determine the real prevalence of the condition, the costs it imposes and the effectiveness of interventions delivered.
The small sample sizes of monkeypox case localities available particularly for West Africa may not reflect accurately the real prevalence of the disease.
Published surveys on wild boar TB (e.g., [5], [10]) rely mostly on culturing only animals with visible macroscopic lesions, which does not allow the calculation of real prevalence.
In order to calculate the real prevalence of TB from surveys based on other diagnostic tests, it is imperative to estimate the sensitivity, specificity, positive and negative predictive values (PPV and NPV, respectively) of these tests [7].
