A limitation of the study is that the specificity values of CATT and CATT dilution are based on data from 1 region and might be underestimated given findings from routine data from the national program (4 ).
In addition, data based on surveillance systems might be underestimated.
The cost data employed in the model might be underestimated, due to difficulties to collect and value all hip-fracture related costs.
Because of a lack of oral glucose tolerance data, the prevalence of diabetes might be underestimated in our study population (40).
Furthermore, by only including myocardial infarction and not including other potential heart diseases (due to a lack of valid data) the health effect of the intervention might be underestimated.
Specificity might be underestimated due to incomplete data on pharmacy insurance claims.
Because there is no postestimation command of AUC calculation specifically for complex sampling of survey data, the variation of AUC in this study might be underestimated.
Our data shows that sight certification in patients with diabetes might be underestimated and these patients often have non-diabetes related visual loss.
The high crown ratios of open-grown trees might be underestimated because sparse stands are often lacking in the data sets.
