It is likely that differential association of microsatellites with coding sequences of different chromosomes may impose differential constraint on non-random prevalence of imperfect microsatellites within the genome.
The incidence data from Northeastern states reveal two main, consistent features: (1) non-random prevalence of NPC even in limited geographical regions; (2) higher incidence in males.
One problem with evaluating the geographically non-random prevalence of ASD for etiologic purposes lies in difficulties disentangling the geographic distribution of other factors associated with diagnosis [ 10, 11].
Missing data is of particular concern if the group with available data substantially differed from the group without it (i.e., data not missing at random), because prevalence estimates may be biased.
If the association of the two disorders were purely random, the expected prevalence of epilepsy was 1% in migraineurs and the prevalence of migraine was 12% in epileptics, while the literature reports prevalence data significantly higher than expected on basis of random association.
In the random sample the prevalence of current asthma was nine percent and current rhinitis 43%, Table 1.> The prevalence of positive SPT in the total RAV cohort is presented in Table 2.
Therefore, as a fraction of the prevalence, random fluctuations are mostly important during the early stages of an epidemic.
In brief, we randomly selected patients from 980 patients who had also been selected at random for a prevalence study on multimorbidity [ 2].
After adjusting for age, sex and clinic as fixed effects and monthly clustering as a random effect, monthly prevalence declined significantly at an average rate of 0.078 per month.
This characteristic of the 1993 and 2000 studies may have led to an underestimation of the true prevalence; random glucose measurements are the diagnostic criterion with the lowest sensitivity.
In the random sample the prevalence was higher among < 25 years compared to ≥ 25 years), 39% vs. 29% (p < 0.05), whereas for the symptom sample the prevalence was similar across age-groups, ≈ 50%.>> -wrap-foot> Positive result in prick 1 vs prick 2. A high degree of concordance was seen between the two weals when SPT was carried out with the same allergen extract.
