Background: Premature deaths constitute 31.1% of all deaths in Łódź. Analysis of the causes of premature deaths may be helpful in the evaluation of health risk factors. Moreover, findings of this study may enhance prophylactic measures. Material and Methods: In 2001, 1857 randomly selected citizens, aged 18-64, were included in the Countrywide Integrated Noncommunicable Diseases Intervention (CINDI) Programme. In 2009, a follow-up study was conducted and information on the subjects of the study was collected concerning their health status and if they continued to live in Łódź. The Cox proportional hazards model was used for evaluation of hazard coefficients. We adjusted our calculations for age and sex. The analysis revealed statistically significant associations between the number of premature deaths of the citizens of Łódź and the following variables: a negative self-evaluation of health -HR = 3.096 (95% CI: 1.729-5.543), poor financial situation -HR = 2.811 (95% CI: 1.183-6.672), occurring in the year preceding the study: coronary pain -HR = 2.754 (95% CI: 1.167-6.494), depression -HR = 2.001 (95% CI: 1.222-3.277) and insomnia -HR = 1.660 (95% CI: 1.029-2.678). Our research study also found a negative influence of smoking on the health status -HR = 2.782 (95% CI: 1.581-4.891). Moreover, we conducted survival analyses according to sex and age with Kaplan-Meier curves. Conclusions: The risk factors leading to premature deaths were found to be highly significant but possible to reduce by modifying lifestyle-related health behaviours. The confirmed determinants of premature mortality indicate a need to spread and intensify prophylactic activities in Poland, which is a post-communist country, in particular, in the field of cardiovascular diseases. Attempts to find reasons of deaths in the first decade of the 21st century may lead to a detailed and long-term research which would focus on determining a wide spectrum of factors contributing to the mortality of Łódź citizens. This in turn, may lead to implementation of a multidimensional prophylaxis which would contribute to improving the state of health of the inhabitants of Łódź as well as other cities and industrial populations, where the population of Łódź may act as a representative.
THE AIM OF THE STUDYThe study aimed at listing factors which determine premature mortality of the citizens of Łódź, basing on the results of empirical data the sources of which are multidirectional epidemiological studies. Researchers attempt to identify factors influencing the phenomenon of premature deaths.