Setting targets purely based on prevalence estimates from epidemiological studies, without discounting for those who do not feel the need for correction, may be difficult to achieve.
Calculations were based on prevalence scenarios from published studies, with COPD prevalence ranging from 5 to 60%, a margin of error not more than four percentage points, 95% confidence intervals, and a design effect of 1.5 based on a previous survey in the region [ 1].
Assessing the severity of errors detected increases the clinical relevance of studies' findings when compared with studies based on prevalence alone.
Studies based on prevalence and distribution of hypodontia demonstrated a high variability depending on sample size, gender, race, and ethnic provenance [1, 8 10, 12, 13].
The outcome is based on prevalence in 79 (68.1%) principal studies, mortality in 28 (24.1%) and incidence in 10 (8.6%).
Moreover, most studies reporting sex differences in the social patterning of type 2 diabetes were based on prevalence data, 38 39 whereas our study examined incidence.
In this longitudinal study based on prevalence data from a large emergency and referral teaching hospital in Norway, we found that HAIs have severe consequences for patients.
The study based on prevalence figures in 2815 randomly selected subjects who had undergone a clinical examination and serologic screening for celiac disease in 2002.
The outcome is based on prevalence in 19 (73.1%) of the studies, on mortality in five (19.2%) and on incidence in two (7.7%).
The outcome is based on prevalence in 78 (89.7%) of the principal studies, mortality in six (6.9%) and incidence in three (3.4%).
