Logistic regression was used to analyze the data. According to the results of the study, the occurrence of COPD in the age-adjusted sample population was 5.4%. Almost half of the individuals with COPD indicated fair/poor health compared with 15% of individuals without the disease. Furthermore, the occurrence of ≥14 unhealthy days over the past one month and fair/poor health state was higher for individuals with the diseases in contrast to those individuals who did not have the disease, t
hat is 45% and 17% respectively. Individuals with COPD accounted for double the amount of unhealthy 24-hours in contrast to those without the disease. Individuals with COPD were expected to have lower intensity of HRQOL for each of the four unhealthy day determinants in contrast to individuals who do not have COPD. The results of the study revealed that there was a negative relationship between HRQOL and COPD as higher levels of COPD resulted in lower intensity of HRQOL. The reason behind this was that appropriate looking after of COPD necessitates individuals to make significant lifestyle adjustments. These alterations entail both physical and behavioral changes that might result in psychological dysfunction. Thus, the study offered guidance for individuals to manage their disease and a framework for future policy decision making regarding people having such diseases.
Miotto, De Coppi, Fre zza, Petretto, Masala, Preti, (2003) investigated the association between the tendency to be aggressive and eating disorder among school-aged adolescents. The aim of study was to prove the hypothesis of a positive connection between eating disorders and aggressiveness. The sample consisted of 1000 adolescents with ages ranging from 15 to 19 years.