Use of “Cold Spell” indices to quantify excess chronic obstructive pulmonary disease (COPD) morbidity during winter (November to March 2000–2007): case study in Porto

Monteiro, Ana; Carvalho, Vânia Carneiro de; Góis, Joaquim; Sousa, Carlos

doi:10.1007/s00484-012-0613-z

Cited by 40 publications

(33 citation statements)

References 54 publications

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“…Similar to the modification effects of intensity, duration and timing of heat waves541, the current study found that the characteristics of cold spells might have also played an important role in the mortality risk of cold spells in China. Similar findings have also been reported in previous studies183742. In our study, we found that there was a significant increase in non-accidental mortality for longer, stronger and earlier cold spells.…”

Section: Discussionsupporting

confidence: 93%

The impact of cold spells on mortality and effect modification by cold spell characteristics

Wang

Liu

et al. 2016

Sci Rep

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In China, the health impact of cold weather has received little attention, which limits our understanding of the health impacts of climate change. We collected daily mortality and meteorological data in 66 communities across China from 2006 to 2011. Within each community, we estimated the effect of cold spell exposure on mortality using a Distributed Lag Nonlinear Model (DLNM). We also examined the modification effect of cold spell characteristics (intensity, duration, and timing) and individual-specific factors (causes of death, age, gender and education). Meta-analysis method was finally used to estimate the overall effects. The overall cumulative excess risk (CER) of non-accidental mortality during cold spell days was 28.2% (95% CI: 21.4%, 35.3%) compared with non-cold spell days. There was a significant increase in mortality when the cold spell duration and intensity increased or occurred earlier in the season. Cold spell effects and effect modification by cold spell characteristics were more pronounced in south China. The elderly, people with low education level and those with respiratory diseases were generally more vulnerable to cold spells. Cold spells statistically significantly increase mortality risk in China, with greater effects in southern China. This effect is modified by cold spell characteristics and individual-level factors.

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Section: Discussionsupporting

confidence: 93%

The impact of cold spells on mortality and effect modification by cold spell characteristics

Wang

Liu

et al. 2016

Sci Rep

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“…However, there is neither a uniform and agreed definition of a cold spell34 nor a precise definition of the period for which such events should be studied. Our criterion for identifying a cold period was to combine time and temperature thresholds, which is similar to that of other studies 35 36. We found that there was a 15.99% increase in pneumonia hospital admissions in the cold period.…”

Section: Discussionmentioning

confidence: 73%

Temporal relationship between hospital admissions for pneumonia and weather conditions in Shanghai, China: a time-series analysis

Liu

Kan

et al. 2014

BMJ Open

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ObjectivesTo explore the association between weather conditions and hospital admissions for pneumonia in Shanghai.DesignA time-series analysis was performed for a period of 4 years (January 2008–December 2011). A generalised additive model was used to calculate the relative risks.SettingShanghai, China.ParticipantsAll daily hospital admissions for pneumonia were obtained from the Shanghai health insurance system between 1 January 2008 and 31 December 2011 (n=99 403).ResultsThe relationship between the mean temperature and pneumonia hospital admissions followed a V-shaped curve, with an optimum temperature (OT) at 13°C. When the mean temperature was below the OT, a 1°C decrease corresponded to a 4.88% (95% CI 2.71% to 7.09%) and 5.34% (95% CI 2.04% to 8.74%) increase in pneumonia hospital admissions in lag 4 using a single-day lag structure and lag 0–7 using a multiday lag structure. When the mean temperature ≥OT, no adverse effects from the temperature on pneumonia hospital admissions were found. The magnitude of the effects of temperature varied across gender and age groups. Hospitalisations for pneumonia increased by 15.99% (95% CI 0.06% to 34.46%) in the cold period.ConclusionsCold temperature may be one of the important risk factors for pneumonia hospitalisations. Prevention programmes are needed to reduce the impact of cold temperature on pneumonia hospitalisations such as developing a weather warning system within a wide public health context.

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“…Kumi e Ayres (2007) expõem que a diminuição de 1ºC nas temperaturas abaixo de 5ºC está associada ao aumento de 10% das consultas médicas por DPOC. Além destes, Monteiro et al (2013a), para os invernos entre 2000 e 2007 no Porto, apontam que os casos de extremos de frio ≤5ºC podem ser mais significativos no aumento da morbidade por DPOC.…”

Section: Análises Estatísticas Entre As Odc As Odf E a Dpocunclassified

“…No que diz respeito às ondas de calor (OdC) e às ondas de frio (OdF), os exemplos só no novo milênio são vários (e.g. Huynen et al, 2001;Anderson, Bell, 2009;D'Ippoliti et al, 2010;Barnett et al, 2012;Monteiro et al, 2013a;Silveira et al, 2018). .…”

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A DPOC na Área Metropolitana do Porto e o efeito das ondas de calor e de frio na enfermidade

et al. 2019

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Resumo: Caracterizou-se a doença pulmonar obstrutiva crónica (DPOC) e os possíveis aspectos socioeconómicos associados à enfermidade e avaliaram-se os efeitos que as ondas de calor (OdC) e as ondas de frio (OdF) podem ter no aumento dos internamentos hospitalares nas pessoas residentes na Área Metropolitana do Porto (AMP) entre 2000 e 2015. Os efeitos das OdC e das OdF nas admissões hospitalares por DPOC foram investigados por meio da análise de regressão linear múltipla, com nível de significância de α = 5%. A análise estatística e cartográfica da distribuição geográfica dos internamentos hospitalares por DPOC, por grupos etários, por taxa de analfabetismo e por taxa de desemprego, à escala de freguesia, permitiu explicar os efeitos das OdC e das OdF no agravamento desta enfermidade. Do ponto de vista da caracterização das admissões por DPOC na AMP, concluiuse que, em geral, esta doença está associada às freguesias com condições socioeconómicas mais precárias e com a população mais envelhecida. A intensidade e a duração, de acordo com o modelo utilizado, explicam o aumento nas taxas de admissões por DPOC durante os eventos de OdC e OdF. Todavia, a duração contribuiu mais nos eventos de calor e a intensidade nos eventos de frio. A severidade média foi o único parâmetro que não compôs o modelo. Palavras-chave:DPOC; Área Metropolitana do Porto; Onda de calor; Onda de frio.Abstract: Chronic obstructive pulmonary disease (COPD) and the possible socioeconomic aspects associated with the disease were characterized and the effects that heat waves (HW) and cold waves (CW) can have on the increase of hospitalizations in people living in the Porto Metropolitan Area (PMA) between 2000 and 2015 were evaluated. The effects of HW and CW on hospital admissions for COPD were investigated by multiple linear regression analysis, with a significance level of α = 5%. Statistical and cartographic analysis of the geographic distribution of hospitalizations for COPD in the age groups, illiteracy rate and unemployment rate at the parish scale, explained the effects of HW and CW on the aggravation of this disease. From the point of view of the characterization of COPD admissions in PMA, it was concluded that, in general, this disease is associated with parishes with poorer socioeconomic Silveira et al. / Physis Terrae, Vol. 1, nº 1, 2019, 31-56 32 conditions and the older population. Intensity and duration, according to the model used, explain the increase in COPD admission rates during the HW and CW events. However, duration contributed more in heat events and intensity in cold events. Average severity was the only parameter that did not make up the model. IntroduçãoA busca de relações entre clima e saúde tem sido uma preocupação constante dos seres humanos e são inúmeros os exemplos, desde a Antiguidade Clássica. Diferentes pesquisas em décadas passadas exibem as percepções e as evidências vinculadas aos impactos ambientais, incluindo os climáticos, sobre as condições de saúde das pessoas (e.g. exemplo, no livro Geography in the Mid...

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Use of “Cold Spell” indices to quantify excess chronic obstructive pulmonary disease (COPD) morbidity during winter (November to March 2000–2007): case study in Porto

Cited by 40 publications

References 54 publications

The impact of cold spells on mortality and effect modification by cold spell characteristics

The impact of cold spells on mortality and effect modification by cold spell characteristics

Temporal relationship between hospital admissions for pneumonia and weather conditions in Shanghai, China: a time-series analysis

A DPOC na Área Metropolitana do Porto e o efeito das ondas de calor e de frio na enfermidade

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