Due to conflicting results across studies, the estimated average effect of air chilling on Campylobacter prevalence is not informative.
For cluster headache, the 1-year prevalence is not known, but the lifetime prevalence seems to be around 0.2 0.3%.
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%.
Further, although we acknowledge that lifetime prevalence is not the same as point prevalence, for at least some of the health conditions we examine, past morbidity is a strong predictor of future morbidity.
Furthermore, although we acknowledge that lifetime prevalence is not the same as point prevalence, for at least some of the health conditions we examine, past morbidity is a strong predictor of future morbidity.
Bangladesh's child marriage prevalence is not unique in South Asia either.
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.
There is doubt about whether it is distinct from high-functioning autism (HFA); partly because of this, its prevalence is not firmly established.
Although their relative prevalence is not known with precision, they may be one of the most common epilepsy in the two first years of life[1].
Overly-specific prediction, or simply over-prediction, is a common and "systematic" error of electronic annotations [1], although its exact prevalence is not known.
While the difference in prevalence is not statistically significant (P = 0.07), there is a tendency of finding Δexon14 in unmutated patients.
