BACKGROUND: Unfavourable trends in Czech republic (CR) started in the sixties and peaked in the late eighties i.e. in years when a dramatic mortality fall was observed in most western european countries. So, CR belonged among those Eastern European countries in that total and cardiovascular mortality showed increasing and alarming trends. West Bohemia Region (WB) was characterised by the concentration of heavy industry and high environmental pollution. Because of its geographical position on the western frontier, it was generally restricted in capital investment in the past. We wondered whether these phenomenon were reflected in higher mortality rates than in the rest of CR and which changes occurred after the year 1989. METHODS AND RESULTS: We compared the age standardized mortality data from 1988, 91, 93 and 95 in CR and WB for total mortality, cardiovascular mortality, coronary heart disease, strokes, malignancies and respiratory diseases. Data were age-adjusted for "World Population Standards" and rates were given for 100,000 inhabitants. In the whole CR a significant decrease of total, cardiovascular and cancer mortality was observed from 1988 to 1995. In WB these trends were similar, however in comparison to the whole CR the mortality rates remained in each respective period higher for total, cancer (mainly lung cancer) mortality and for non specific respiratory disease. In contrast, the coronary mortality rates in CR and WB were similar, however in WB after a temporary decrease in 1993 a significant increase in 1995 was observed. On the other hand the stroke mortality rates which were until 1993 in WB higher, significantly decreased in 1995 below the rates for CR. The cause of higher mortality rates in WB are far from being clear. To elucidate this observation epidemiologic studies of environmental pollution, life style of the population and socioeconomic factors are necessary, even as a further monitoring of regional mortality rates and trends.
BACKGROUND: Unfavourable trends in Czech republic (CR) started in the sixties and peaked in the late eighties i.e. in years when a dramatic mortality fall was observed in most western european countries. So, CR belonged among those Eastern European countries in that total and cardiovascular mortality showed increasing and alarming trends. West Bohemia Region (WB) was characterised by the concentration of heavy industry and high environmental pollution. Because of its geographical position on the western frontier, it was generally restricted in capital investment in the past. We wondered whether these phenomenon were reflected in higher mortality rates than in the rest of CR and which changes occurred after the year 1989. METHODS AND RESULTS: We compared the age standardized mortality data from 1988, 91, 93 and 95 in CR and WB for total mortality, cardiovascular mortality, coronary heart disease, strokes, malignancies and respiratory diseases. Data were age-adjusted for "World Population Standards" and rates were given for 100,000 inhabitants. In the whole CR a significant decrease of total, cardiovascular and cancer mortality was observed from 1988 to 1995. In WB these trends were similar, however in comparison to the whole CR the mortality rates remained in each respective period higher for total, cancer (mainly lung cancer) mortality and for non specific respiratory disease. In contrast, the coronary mortality rates in CR and WB were similar, however in WB after a temporary decrease in 1993 a significant increase in 1995 was observed. On the other hand the stroke mortality rates which were until 1993 in WB higher, significantly decreased in 1995 below the rates for CR. The cause of higher mortality rates in WB are far from being clear. To elucidate this observation epidemiologic studies of environmental pollution, life style of the population and socioeconomic factors are necessary, even as a further monitoring of regional mortality rates and trends.
Authors: Otto Mayer; Jan Bruthans; Simona Bilkova; Jitka Seidlerova; Josef Jirak; Jan Filipovsky Journal: Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub Date: 2022-04-20 Impact factor: 1.648