conclusions the fev1/fev6 ratio can be used as a valid surrogate for fev1/fvc in the diagnosis of airway obstruction, especially for screening purposes in high-risk populations for copd. moreover, fev6 is an acceptable alternative for fvc in detection of restrictive pattern. results this study shows that the current cut-off points used to detect obstruction and restriction can be replaced by fe...

background: the body mass index (bmi) is widely used to diagnose overweight and obesity. however, there are limitations on the use of bmi and development of alternative measures can be of clinical importance. this study aimed to compare specificity and sensitivity of weight for height (w/h), waist circumference (wc) and waist-to-height ratio (whtr) with bmi-for-age in diagnosing overweight and ...

The most important issue in multi-objective optimization problems is to determine the Pareto points along the Pareto frontier. If the optimization problem involves multiple conflicting objectives, the results obtained from the Pareto-optimality will have the trade-off solutions that shaping the Pareto frontier. Each of these solutions lies at the boundary of the Pareto frontier, such that the i...