Excess cardiovascular mortality associated with cold spells in the Czech Republic

Kysely, Jan; Pokorna, Lucie; Kyncl, Jan; Kriz, Bohumir
January 2009
BMC Public Health;2009, Vol. 9, p19
Academic Journal
Background: The association between cardiovascular mortality and winter cold spells was evaluated in the population of the Czech Republic over 21-yr period 1986-2006. No comprehensive study on cold-related mortality in central Europe has been carried out despite the fact that cold air invasions are more frequent and severe in this region than in western and southern Europe. Methods: Cold spells were defined as periods of days on which air temperature does not exceed -3.5°C. Days on which mortality was affected by epidemics of influenza/acute respiratory infections were identified and omitted from the analysis. Excess cardiovascular mortality was determined after the long-term changes and the seasonal cycle in mortality had been removed. Excess mortality during and after cold spells was examined in individual age groups and genders. Results: Cold spells were associated with positive mean excess cardiovascular mortality in all age groups (25-59, 60-69, 70-79 and 80+ years) and in both men and women. The relative mortality effects were most pronounced and most direct in middle-aged men (25-59 years), which contrasts with majority of studies on cold-related mortality in other regions. The estimated excess mortality during the severe cold spells in January 1987 (+274 cardiovascular deaths) is comparable to that attributed to the most severe heat wave in this region in 1994. Conclusion: The results show that cold stress has a considerable impact on mortality in central Europe, representing a public health threat of an importance similar to heat waves. The elevated mortality risks in men aged 25-59 years may be related to occupational exposure of large numbers of men working outdoors in winter. Early warnings and preventive measures based on weather forecast and targeted on the susceptible parts of the population may help mitigate the effects of cold spells and save lives.


Related Articles

  • Influenza Vaccination and Cardiovascular Morbidity and Mortality: Analysis of 292 383 Patients. Loomba, Rohit S.; Aggarwal, Saurabh; Shah, Parinda H.; Arora, Rohit R. // Journal of Cardiovascular Pharmacology & Therapeutics;Sep2012, Vol. 17 Issue 3, p277 

    Studies have documented an association between influenza vaccination and risk reduction in myocardial infarction, all-cause mortality, and major adverse cardiac events. This meta-analysis pooled data from 5 trials with a total of 292 383 patients. Influenza vaccination was found to be associated...

  • Heat- and cold-stress effects on cardiovascular mortality and morbidity among urban and rural populations in the Czech Republic. Urban, Aleš; Davídkovová, Hana; Kyselý, Jan // International Journal of Biometeorology;Aug2014, Vol. 58 Issue 6, p1057 

    Several studies have examined the relationship of high and low air temperatures to cardiovascular mortality in the Czech Republic. Much less is understood about heat-/cold-related cardiovascular morbidity and possible regional differences. This paper compares the effects of warm and cold days on...

  • Impacts of hot and cold spells differ for acute and chronic ischaemic heart diseases. Davídkovová, Hana; Plavcová, Eva; Kyncl, Jan; Kyselý, Jan // BMC Public Health;2014, Vol. 14 Issue 1, p452 

    Background Many studies have reported associations between temperature extremes and cardiovascular mortality but little has been understood about differences in the effects on acute and chronic diseases. The present study examines hot and cold spell effects on ischaemic heart disease (IHD)...

  • Weather and cardiovascular mortality. Marti-Soler, Helena; Marques-Vidal, Pedro // Heart;Dec2015, Vol. 101 Issue 24, p1941 

    In this article, the author discusses effect of weather on cardiovascular disease (CVD) mortality. Topics discussed include increase in winter mortality being mostly due to respiratory infections and seasonal influenza, use of statistical methodology for accounting for complex...

  • The impact of the 2008 cold spell on mortality in Shanghai, China. Ma, Wenjuan; Yang, Chunxue; Chu, Chen; Li, Tiantian; Tan, Jianguo; Kan, Haidong // International Journal of Biometeorology;Jan2013, Vol. 57 Issue 1, p179 

    No prior studies in China have investigated the health impact of cold spell. In Shanghai, we defined the cold spell as a period of at least seven consecutive days with daily temperature below the third percentile during the study period (2001-2009). Between January 2001 and December 2009, we...

  • Estimating Deaths Due to Influenza and Respiratory Syncytial Virus—Reply. Thompson, William W.; Shay, David K.; Weintraub, Eric; Brammer, Lynnette; Cox, Nancy; Anderson, Larry J.; Fukuda, Keiji // JAMA: Journal of the American Medical Association;5/21/2003, Vol. 289 Issue 19, p2499 

    Presents a reply from the authors of an article regarding a mortality rate study in influenza patients. How models used and suggested have strengths and weaknesses.

  • Keep pushing flu shots for heart patients.  // Clinical Advisor;Nov2009, Vol. 12 Issue 11, p15 

    The article reports on the need to encourage influenza vaccination especially for cardiovascular patients. According to a study published in "Lancet Infectious Diseases," evidence show that acute respiratory infection, influenza in particular, can trigger heart attack or cardiovascular deaths....

  • Daily temperature and mortality: a study of distributed lag non-linear effect and effect modification in Guangzhou. Jun Yang; Chun-Quan Ou; Yan Ding; Ying-Xue Zhou; Ping-Yan Chen // Environmental Health: A Global Access Science Source;2012, Vol. 11 Issue 1, p63 

    Background: Although many studies have documented health effects of ambient temperature, little evidence is available in subtropical or tropical regions, and effect modifiers remain uncertain. We examined the effects of daily mean temperature on mortality and effect modification in the...

  • The effect of temperature on mortality in Stockholm 1998-2003: A study of lag structures and heatwave effects. Rocklöv, Joacim; Forsberg, Bertil // Scandinavian Journal of Public Health;Jul2008, Vol. 36 Issue 5, p516 

    Aims: To describe seasonal patterns of natural mortality in Stockholm as well as the temperature-mortality relationship and the lag structure for effects of high and low temperatures; to describe the impact of high temperatures on cardiovascular and respiratory mortality, and the general effect...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics