Changes in seasonal deaths from myocardial infarction

Crawford, Vivienne; McCann, Mark; Stout, Robert W.

doi:10.1093/qjmed/hcg005

Cited by 63 publications

(50 citation statements)

References 28 publications

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“…Trends were not examined because of the short study period, during which neither mortality nor temperature showed a real trend. Some studies have shown a decrease in the seasonal variation of mortality between the 1930s and the 1970s; this change can be explained by improvements in social conditions, heating and rural depopulation (Seretakis et al 1997;Crawford et al 2003), but it cannot be perceived in a period as short as 5 years.…”

Section: Methodsmentioning

confidence: 99%

Temperature-related mortality in France, a comparison between regions with different climates from the perspective of global warming

Laaidi¹,

Laaidi

Besancenot³

2006

Int J Biometeorol

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This paper aims to explain the results of an observational population study that was carried out between 1991 and 1995 in six regions (departments) in France. The study was to assess the relationship between temperature and mortality in a few areas of France that offer widely varying climatic conditions and lifestyles, to determine their thermal optimum, defined as a 3 degrees C temperature band with the lowest mortality rate in each area, and then to compare the mortality rates from this baseline band with temperatures above and below the baseline. The study period was selected because it did not include extreme cold or hot events such as a heatwave. Data on daily deaths from each department were first used to examine the entire population and then to examine men, women, various age groups and various causes of death (respiratory disease, stroke, ischaemic heart disease, other disease of the circulatory system, and all other causes excluding violent deaths). Mean temperatures were provided by the National Weather Service. The results depicted an asymmetrical V- or U-shaped relationship between mortality and temperature, with a thermal optimum lower for the elderly, and generally lower for women than for men except in Paris. The relationship was also different depending on the cause of death. In all cases, more evidence was collected showing that cold weather was more deadly than hot weather, and it would now be interesting to enlarge the study to include years with cold spells and heatwaves. Furthermore, the results obtained could be of great use in estimating weather-related mortality as a consequence of future climate-change scenarios.

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Section: Methodsmentioning

confidence: 99%

Temperature-related mortality in France, a comparison between regions with different climates from the perspective of global warming

Laaidi¹,

Laaidi

Besancenot³

2006

Int J Biometeorol

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“…The relative mortality ratios when HRC constituted an underlying or contributing cause ranged from 2.19 in 1983 to 9.24 in 2003 and were less heterogeneous than the ratios when HRC constituted the underlying cause of death. 1975, 1976, 1983, 1990and 2003HW 19751976198319902003 …”

Section: Heat-related Causesmentioning

confidence: 99%

“…Except in 2001, there was a significant excess of underlying HRC. 1975, 1976, 1983, 1990and 2003HW 19751976198319902003 Underlying causes 1. 1975, 1976, 1983, 1990, 2001 and 2003 are statistically heterogeneous at the 1% level a Relative O/E: cause-specific mortality ratio divided by the overall ''All causes'' mortality ratio.…”

Section: Causes Of Death By Age and Gendermentioning

confidence: 99%

“…Some studies have systematically described the mortality or morbidity structure in terms of the causes of HW-related excess (Applegate et al 1981;Ellis and Nelson 1978;Henschel et al 1969;Michelozzi et al 2005;Schuman 1972;Semenza et al 1999). Cardiovascular diseases (Applegate et al 1981;Crawford et al 2003;Ellis and Nelson 1978;Ellis et al 1980;Henschel et al 1969;Huynen et al 2001;Michelozzi et al 2005;Rooney et al 1998;Schuman 1972;Semenza et al 1999), respiratory diseases and causes directly related to heat (heatstroke, hyperthermia and dehydration) strongly contributed to the excess. A marked relative increase in the mortality or morbidity due to respiratory diseases, nervous system diseases and mental illnesses during HW has also been observed (Bark 1998;Braga et al 2002;Ellis and Nelson 1978;Henschel et al 1969;Huynen et al 2001;Michelozzi et al 2005;Rooney et al 1998;Schuman 1972;Semenza et al 1999;Sharma 2005).…”

Section: Introductionmentioning

confidence: 99%

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The impact of major heat waves on all-cause and cause-specific mortality in France from 1971 to 2003

Rey

Jougla

Fouillet

et al. 2007

Int Arch Occup Environ Health

146

100

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“…9 Excess winter mortality is thought to be linked predominantly to circulatory and respiratory conditions. 6,[10][11][12] Prolonged exposure to low temperatures can have an impact on blood pressure and blood chemistry [13][14][15] as well as blood viscosity and vasoconstriction. 16,17 Low temperatures can also suppress the function of the immune system, 18 raising the risk of respiratory infection among vulnerable groups.…”

Section: Introductionmentioning

confidence: 99%

The health impacts of energy performance investments in low-income areas: a mixed-methods approach

et al. 2018

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BackgroundCold homes and fuel poverty contribute to health inequalities in ways that could be addressed through energy efficiency interventions.ObjectivesTo determine the health and psychosocial impacts of energy performance investments in low-income areas, particularly hospital admissions for cardiorespiratory conditions, prevalence of respiratory symptoms and mental health status, hydrothermal conditions and household energy use, psychosocial outcomes, cost consequences to the health system and the cost utility of these investments.DesignA mixed-methods study comprising data linkage (25,908 individuals living in 4968 intervention homes), a field study with a controlled pre-/post-test design (intervention,n = 418; control,n = 418), a controlled multilevel interrupted time series analysis of internal hydrothermal conditions (intervention,n = 48; control,n = 40) and a health economic assessment.SettingLow-income areas across Wales.ParticipantsResidents who received energy efficiency measures through the intervention programme and matched control groups.Main outcome measuresPrimary outcomes – emergency hospital admissions for cardiorespiratory conditions, self-reported respiratory symptoms, mental health status, indoor air temperature and indoor relative humidity. Secondary outcomes – emergency hospital admissions for chronic obstructive pulmonary disease-related cardiorespiratory conditions, excess winter admissions, health-related quality of life, subjective well-being, self-reported fuel poverty, financial stress and difficulties, food security, social interaction, thermal satisfaction and self-reported housing conditions.MethodsAnonymously linked individual health records for emergency hospital admissions were analysed using mixed multilevel linear models. A quasi-experimental controlled field study used a multilevel repeated measures approach. Controlled multilevel interrupted time series analyses were conducted to estimate changes in internal hydrothermal conditions following the intervention. The economic evaluation comprised cost–consequence and cost–utility analyses.Data sourcesThe Patient Episode Database for Wales 2005–14, intervention records from 28 local authorities and housing associations, and scheme managers who delivered the programme.ResultsThe study found no evidence of changes in physical health. However, there were improvements in subjective well-being and a number of psychosocial outcomes. The household monitoring study found that the intervention raised indoor temperature and helped reduce energy use. No evidence was found of substantial increases in indoor humidity levels. The health economic assessment found no explicit cost reductions to the health service as a result of non-significant changes in emergency admissions for cardiorespiratory conditions.LimitationsThis was a non-randomised intervention study with household monitoring and field studies that relied on self-response. Data linkage focused on emergency admissions only.ConclusionAlthough there was no evidence that energy performance investments provide physical health benefits or reduce health service usage, there was evidence that they improve social and economic conditions that are conducive to better health and improved subjective well-being. The intervention has been successful in reducing energy use and improving the living conditions of households in low-income areas. The lack of association of emergency hospital admissions with energy performance investments means that we were unable to evidence cost saving to health-service providers.Future workOur research suggests the importance of incorporating evaluations with follow-up into intervention research from the start.FundingThe National Institute for Health Research Public Health Research programme.

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Changes in seasonal deaths from myocardial infarction

Cited by 63 publications

References 28 publications

Temperature-related mortality in France, a comparison between regions with different climates from the perspective of global warming

Temperature-related mortality in France, a comparison between regions with different climates from the perspective of global warming

The impact of major heat waves on all-cause and cause-specific mortality in France from 1971 to 2003

The health impacts of energy performance investments in low-income areas: a mixed-methods approach

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