Performing Chi-square Test to Identify Factors Related to Human Health in two rural zones of Albania

Abstract

In various research, the effects of air pollution on human health, causing various diseases in individuals, have been evidenced. This paper analyzes the data collected in two different rural zones in the state of Albania: one of which is polluted and the other is not. Moreover, different categorical variables are treated that are summarized as a series of numbers in a random table, called a contingency table. The category of individuals is divided into four age groups. The chi-square test of independence is used to determine if there is any difference between the study groups in the proportions of the existing risk factor. The result shows that at the significance level α=0.05 of the test the relationship depends between the disease (cough) and air pollution. Considering the growing number of diseases in individuals as a result of air pollution, which is a challenge for the health system, we recommend that more emphasis be placed on the use of advanced statistical methods - in the search of human health by government researchers and health system experts.