Browsing by Subject "classification methods"

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Access status: Open Access ,
Klasyfikacja przypadków medycznych metodą statystyczną
(Wydawnictwa AGH, 2010) Wajs, Wiesław
The problem of data classification with statistical methods is presented in the paper. Described classification method enables calculation of probability of disease incidence. A case of disease incidence is described with two parameters expressed in real numbers. The case can belong to a known set of cases there the disease occurred or to the set where the disease did not occur. There was presented a method for calculating probability with which a given case belongs to the set labeled as »1« or »0«. Source data used in the paper come from medical databases and are original. The algorithm of the method was checked on clinical cases. Correlation method was used for generating respective statistics. The calculated correlation at a level of 0.8 is indicative of disease occurrence, whereas the correlation coefficient at a level of 0.0 is indicative of lack of disease. This property is used in the classification algorithm. It is frequent in the clinical practice that we have one test case and we try to determine whether or not that case describes symptoms of liability to the disease. Classification is related with the occurrence of disease bpd, which is analyzed in a 3 to 4 week period preceding the disease incidence. Bronchopulmonary dysplasia is a chronic lung disease that develops in neonates treated with oxygen and positive pressure ventilation. The majority of bpd cases occur in premature infants, usually those who have gestational ege less than wp = 34 weeks and birth weight less than mu = 1500 g. These babies are more likely to be affected by a condition known as infant Respiratory Distress Syndrome, which occurs as a result of tissue damage to the lungs from being mechanical ventilator for a significant amount of time. Although mechanical ventilation is essential to their survival over time the pressure from the ventilation and excess oxygen intake can injure a newborn's delicate lungs. If symptoms of respiratory distress syndrome persist then the condition is considered Broncho-pulmonary Dysplasia. Important factors in diagnosing bpd are prematurely, infection, mechanical ventilator dependence, and oxygen exposure.