Association between air quality and quality of life.

Air quality-or its converse, air pollution-is a significant risk factor for human health. Recent studies have reported association between air pollution and human health. There are numerous diseases that may be caused by air pollution such as respiratory infection, lung cancer, cardiovascular disease, chronic obstructive pulmonary disease, and asthma. In this study, the relationship between air quality and quality of life was examined by using canonical correlation analysis. Data of this study was collected from 27 countries. WHO statistics were used as the main source of quality of life data set (Y variables set). European Environment Agency statistics and (for outdoor air-PM10) WHO statistics were used as the main source of air quality data set (X variables set). It is found that there are significant positive correlation between air quality and quality of life.

Relationship between quality of life and child traffic fatalities.

Traffic injuries are the leading cause of morbidity and mortality of children around the world. Economic development and quality of life are main components of public health. Using canonical correlation analysis, this study examined the relationship between quality of life and traffic fatality among children. Data were collected from 19 countries by using World Health Organization and OECD statistics. The results indicated that there is a strong relationship between quality of life and children traffic fatality. Growing quality of life has become protective against child traffic accident mortality. Increasing in gross national income per capita, life expectancy at birth number of years, road motor vehicles per thousand population, and share of persons of working age (15-64 years) in employment also increases children traffic safety.