Tables 2 and 3 and Figure 2 present complete prevalence – the sum of observed prevalence from the years of diagnosis that were available in our data and modelled prevalence from those that were not.
This was done by dividing the age/sex stratified incidence of knee OA by the sum of the prevalence of obesity multiplied by the increased risk of OA due to obesity and prevalence of non-obesity.
Quarter days infected at pen or herd level (i.e. the sum of IMI prevalence days for individual quarters of all animals) were calculated based on recorded dates of cow entry and exit from the study pens for all lactating quarters.
(In the past, the 50% accessibility rule alone has been used to determine which methods, and which combination of methods, were available in most countries. ) And finally, the correspondence exists when the sum of contraceptive prevalence for all modern methods is the access measure.
The PCC is the expected proportion of correct classifications [ 41], and equals the sum of squared prevalences.
The average proportion of time spent in hospital by survivors in each cohort was calculated as the summed person-time of hospital activity divided by the summed person-time of prevalence.
Among fathers, there were linear inverse associations of newborn birth weight, CHL, CRL, AMA, MUAC, and triceps, subscapular, and sum of skinfolds with prevalence of diabetes (Table 2).
The weighted mean was calculated by dividing the sum of the product of prevalence (as percentage) and population studied by the sum of the total population.
The weighted mean was calculated by dividing the sum of the product of prevalence (as percentage) and number of patients by the sum of the number of patients.
The problem is known from diagnostic testing, where a trade-off between sensitivity and specificity is made, e.g., by taking their sum (equivalent to the Youden index) or a weighted sum with a combination of prevalence and utilities as weights.
