Seasonal variation in incidence of acute myocardial infarction in a                     sub-Arctic population: the Tromsø Study 1974-2004

Hopstock, Laila Arnesdatter; Wilsgaard, Tom; Njølstad, Inger; Mannsverk, Jan; Mathiesen, Ellisiv B.; Løchen, Maja‐Lisa; Bønaa, Kaare Harald

doi:10.1097/hjr.0b013e32833c7c28

Cited by 29 publications

(28 citation statements)

References 31 publications

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“…AMI seasonality with peak of morbidity and mortality in winter was first reported in the 1930s and a number of studies had confirmed it [22,23]. At the same time a peak of AMI onset in Hungary and Denmark was registered during spring [24,25].…”

Section: Winter Cardiovascular Morbidity In Ivanovo Region сердечно-сmentioning

confidence: 80%

“…Еще в 30-е годы прошлого века была отмечена сезонность ИМ с пиком заболеваемости и смертности зимой, и целый ряд исследований это подтвердили [22,23]. В то же вре-мя в Венгрии и Дании пик ИМ приходится на весенний пе-риод [24,25].…”

Section: Winter Cardiovascular Morbidity In Ivanovo Region сердечно-сunclassified

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Excess winter cardiovascular morbidity in Ivanovo Region in 2009-2013 years

Kontsevaya

Balanova

Loukianov

et al. 2015

Racionalʹnaâ farmakoterapiâ v kardiologii

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Chronic non-infectious diseases are characterized by irregular morbidity and mortality throughout a year. Aim. To study excess cardiovascular morbidity during winter in Ivanovo Region in 2009-2013 years. Material and methods. Excess winter morbidity index (EWMI) was calculated using special formula. The incidence of cardiovascular diseases (CVDs) was determined according to the data from the medical information-analytic center of Ivanovo Region. The index was calculated for CVDs in general, for arterial hypertension (HT) and for acute forms of CVDs (acute myocardial infarction and stroke). Results. The mean EWMI for CVDs for 5 years of the follow-up made up to 77.2% and was higher in women than in men (80% vs 69.5%, respectively). People of working age had lower excess winter morbidity than the population older than working age (53.1% and 88%, respectively). EWMI for CVDs had significant variability and ranged from 29.0% (2013 year) to 81.1% (2010 year) in men and from 25.2% to 82.9% in women in the same years. In general, the 5-year mean EWMI for HT was 72.7%; it was higher in men than in women in most of the analyzed years of follow-up. We had revealed the heterogeneity of the EWMI for HT during the analyzed period in each analyzed group (the minimal values were found in 2011 after the heat wave in 2010). EWMI for myocardial infarction demonstrated excess winter morbidity, men and women had in general similar indices (31.0% and 28.4%, respectively), but it was higher in people of working age as compared with the older ones. This index had a wide range of values. In case of stroke we had revealed no excess winter morbidity; this index was equal throughout a year. Conclusion. The influence on excess winter morbidity can result in the reduction of cardiovascular morbidity and mortality due to the decreased effect of risk factors; it would also optimize a load on healthcare system, the season irregularity of which must be taken into account when planning a work of medical centers. Материал и методы. Проведен расчет индекса избыточной заболеваемости в зимний период (ИИЗЗП) по специальной формуле. Количество ССЗ определяли по данным медицин-ского информационно-аналитического центра Ивановской области. Индекс рассчитывали для ССЗ в целом, для артериальной гипертензии (АГ) и для острых форм ССЗ (инфаркт мио-карда и инсульт). Результаты. Средний ИИЗЗП для ССЗ за 5 лет составил 77,2%, и оказался у женщин несколько выше, чем у мужчин (80,0% против 69,5%, соответственно). Среди лиц трудоспособ-ного возраста избыточная заболеваемость в зимний период оказалась ниже, чем среди населения старше трудоспособного возраста (53,1 и 88%, соответственно). ИИЗЗП для ССЗ характеризовался значительной вариабельностью и колебался от 29,0% (2013 г.) до 81,1% (2010 г.) у мужчин и от 25,2% до 82,9% у женщин в те же годы. Средний за 5 лет ИИЗЗП для АГ в целом составил 72,7%, выше -у мужчин в сравнении с женщинами в большинстве анализируемых лет наблюдения. Выявлена неоднородность показателя ИИЗЗП для АГ в течение анализируемого периода в ка...

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Section: Winter Cardiovascular Morbidity In Ivanovo Region сердечно-сmentioning

confidence: 80%

Section: Winter Cardiovascular Morbidity In Ivanovo Region сердечно-сunclassified

Excess winter cardiovascular morbidity in Ivanovo Region in 2009-2013 years

Kontsevaya

Balanova

Loukianov

et al. 2015

Racionalʹnaâ farmakoterapiâ v kardiologii

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“…The objective of this study was to investigate the impact of daily meteorological variables on first-ever MI in a well-defined subarctic population in northern Norway, exposed to a harsh climate with constantly changing weather conditions like heavy snowfalls and extreme seasonal variations in daylight. This population has previously been investigated for seasonal variation on risk of MI,13 which showed a small winter excess of MI incidence. The current in-depth study of possible effects of meteorological factors is a natural extension of our previous work.…”

Section: Introductionmentioning

confidence: 99%

The effect of daily weather conditions on myocardial infarction incidence in a subarctic population: the Tromsø Study 1974–2004

Hopstock

Fors

Bønaa

et al. 2011

J Epidemiol Community Health

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“…Так, например, в Европе избыточ-ная смертность в зимний период оказалась максималь-ной на Мальте, в Португалии и Испании, а минималь-ной -в Словении, Исландии и Финляндии [1]. И даже в достаточно суровых климатических условиях субарк-тической Норвегии с очень низкими температурами и полярной ночью избыточная смертность в зимний период оказалась небольшой [9]. В Великобритании избыточная смертность в зимний период в 2 раза выше, чем в скандинавских странах.…”

Section: причины формирования избыточной смертности в зимний периодunclassified

“…Наличие "южного" градиента смертности, по всей видимости, связано с адаптацией населения северных стран [9] и, соответственно, с более правильным пове-дением в зимнее время -с использованием теплой одежды и обогрева помещений [10].…”

Section: причины формирования избыточной смертности в зимний периодunclassified

Seasonal and Monthly Changes of Mortality in Russian Federation Regions With Different Climate and Geographic Variables

Kontsevaya¹,

Lukyanov²,

Khudyakov³

et al. 2014

Russ J Cardiol

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Seasonal variation in incidence of acute myocardial infarction in a sub-Arctic population: the Tromsø Study 1974-2004

Abstract: We found a small increase in risk of incident MI during the darkest winter months. Populations living in sub-Arctic areas may be adapted to face climate exposure during winter through behavioural protection.

Cited by 29 publications

References 31 publications

Excess winter cardiovascular morbidity in Ivanovo Region in 2009-2013 years

Excess winter cardiovascular morbidity in Ivanovo Region in 2009-2013 years

The effect of daily weather conditions on myocardial infarction incidence in a subarctic population: the Tromsø Study 1974–2004

Seasonal and Monthly Changes of Mortality in Russian Federation Regions With Different Climate and Geographic Variables

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