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Impact of Coffee and Other Selected Factors on General Mortality and Mortality Due to Cardiovascular Disease in Croatia

In Croatia, the mortality rate is higher than that in the countries of the European Union (EU), and consumption of coffee is moderate compared to EU countries. The study examined the effects of coffee consumption on all-cause (general) mortality, mortality due to cardiovascular disease, and survival. Analyses were based on data obtained from an epidemiological longitudinal study started in 1969 with follow-ups in 1972, including 1, 571 men and 1, 793 women aged 35-59 years, and in 1982 including 1, 093 men and 1, 330 women. The sample was age- and gender-stratified and included urban and rural populations from three coastal and three continental regions of Croatia. During the observation period from spring 1972 to the end of 1999, 568 men and 382 women died. In total, 254 men and 181 women died due to cardiovascular disease. The sample was classified in 4 groups: non-drinkers, consumption of coffee sometimes, regularly 1-2 cup(s), and regularly more than 2 cups per day. Apart from coffee, the effects of diastolic blood pressure, smoking habit, well-being, stomach ulcer, and resident status were analyzed. Data on general mortality and mortality due to cardiovascular disease were also analyzed. The influence of region and the effects of diastolic pressure and smoking habit on general mortality and cardiovascular disease-associated mortality were confirmed in both sexes. No significant effects of coffee consumption on general mortality and mortality due to cardiovascular disease were found among men. Positive effects of coffee on general mortality but not on cardiovascular disease-associated mortality were observed among women (p=0.0089) Women who regularly drank coffee had a significantly lower risk of all-cause death adjusted for age, region, smoking, diastolic blood pressure, feeling of well-being, and history of stomach ulcer (relative risk=0.631 ; p=0.0033 ; confidence interval: 0.464-0.857). The role of coffee consumption on mortality was less relevant than other variables. However, it cannot be completely neglected in women.

coffee ; mortality ; cardiovascular diseases ; epidemiology ; longitudinal studies ; Croatia

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