Instituto Nacional de Saúde Doutor Ricardo Jorge
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- All-cause, cardiovascular, and respiratory mortality and wildfire-related ozone: a multicountry two-stage time series analysisPublication . Chen, Gongbo; Guo, Yuming; Yue, Xu; Xu, Rongbin; Yu,Wenhua; Ye, Tingting; Tong, Shilu; Gasparrini, Antonio; Bell,Michelle L.; Armstrong, Ben; Schwartz, Joel; Jaakkola, Jouni J.K.; Lavigne, Eric; Saldiva, Paulo Hilario Nascimento; Kan, Haidong; Royé, Dominic; Urban, Aleš; Vicedo-Cabrera, Ana Maria; Tobias, Aurelio; Forsberg, Bertil; Sera, Francesco; Lei, Yadong; Abramson, Michael J.; Li, Shanshan; Abrutzky, Rosana; Alahmad, Barrak; Ameling, Caroline; Åström, Christofer; Breitner, Susanne; Carrasco-Escobar, Gabriel; Coêlho, Micheline de Sousa Zanotti Stagliorio; Colistro, Valentina; Correa, Patricia Matus; Dang, Tran Ngoc; de'Donato, Francesca; Dung, Do Van; Entezari, Alireza; Garcia, Samuel David Osorio; Garland, Rebecca M.; Goodman, Patrick; Guo, Yue Leon; Hashizume, Masahiro; Holobaca, Iulian-Horia; Honda, Yasushi; Houthuijs, Danny; Hurtado-Díaz, Magali; Íñiguez, Carmen; Katsouyanni, Klea; Kim, Ho; Kyselý, Jan; Lee, Whanhee; Maasikmets, Marek; Madureira, Joana; Mayvaneh, Fatemeh; Nunes, Baltazar; Orru, Hans; Ortega, Nicol´s Valdés; Overcenco, Ala; Pan, Shih-Chun; Pascal, Mathilde; Ragettli, Martina S.; Rao, Shilpa; Ryti, Niilo R.I.; Samoli, Evangelia; Schneider, Alexandra; Scovronick, Noah; Seposo, Xerxes; Stafoggia, Massimo; Valencia, César De la Cruz; Zanobetti, Antonella; Zeka, Ariana; behalf of the Multi-Country Multi-City Collaborative Research NetworkBackground: Wildfire activity is an important source of tropospheric ozone (O3) pollution. However, no study to date has systematically examined the associations of wildfire-related O3 exposure with mortality globally. Methods: We did a multicountry two-stage time series analysis. From the Multi-City Multi-Country (MCC) Collaborative Research Network, data on daily all-cause, cardiovascular, and respiratory deaths were obtained from 749 locations in 43 countries or areas, representing overlapping periods from Jan 1, 2000, to Dec 31, 2016. We estimated the daily concentration of wildfire-related O3 in study locations using a chemical transport model, and then calibrated and downscaled O3 estimates to a resolution of 0·25° × 0·25° (approximately 28 km2 at the equator). Using a random-effects meta-analysis, we examined the associations of short-term wildfire-related O3 exposure (lag period of 0-2 days) with daily mortality, first at the location level and then pooled at the country, regional, and global levels. Annual excess mortality fraction in each location attributable to wildfire-related O3 was calculated with pooled effect estimates and used to obtain excess mortality fractions at country, regional, and global levels. Findings: Between 2000 and 2016, the highest maximum daily wildfire-related O3 concentrations (≥30 μg/m3) were observed in locations in South America, central America, and southeastern Asia, and the country of South Africa. Across all locations, an increase of 1 μg/m3 in the mean daily concentration of wildfire-related O3 during lag 0-2 days was associated with increases of 0·55% (95% CI 0·29 to 0·80) in daily all-cause mortality, 0·44% (-0·10 to 0·99) in daily cardiovascular mortality, and 0·82% (0·18 to 1·47) in daily respiratory mortality. The associations of daily mortality rates with wildfire-related O3 exposure showed substantial geographical heterogeneity at the country and regional levels. Across all locations, estimated annual excess mortality fractions of 0·58% (95% CI 0·31 to 0·85; 31 606 deaths [95% CI 17 038 to 46 027]) for all-cause mortality, 0·41% (-0·10 to 0·91; 5249 [-1244 to 11 620]) for cardiovascular mortality, and 0·86% (0·18 to 1·51; 4657 [999 to 8206]) for respiratory mortality were attributable to short-term exposure to wildfire-related O3. Interpretation: In this study, we observed an increase in all-cause and respiratory mortality associated with short-term wildfire-related O3 exposure. Effective risk and smoke management strategies should be implemented to protect the public from the impacts of wildfires.
- Global, regional, and national burden of mortality associated with cold spells during 2000–19: a three-stage modelling studyPublication . Gao, Yuan; Huang, Wenzhong; Zhao, Qi; Ryti, Niilo; Armstrong, Ben; Gasparrini, Antonio; Tong, Shilu; Pascal, Mathilde; Urban, Aleš; Zeka, Ariana; Lavigne, Eric; Madureira, Joana; Goodman, Patrick; Huber, Veronika; Forsberg, Bertil; Kyselý, Jan; Sera, Francesco; Guo, Yuming; Li, Shanshan; Gao, Yuan; Huang, Wenzhong; Zhao, Qi; Ryti, Niilo; Armstrong, Ben; Gasparrini, Antonio; Tong, Shilu; Pascal, Mathilde; Urban, Aleš; Zeka, Ariana; Lavigne, Eric; Madureira, Joana; Goodman, Patrick; Huber, Veronika; Forsberg, Bertil; Kyselý, Jan; Sera, Francesco; Bell, Michelle; Simon Hales; Honda, Yasushi; Jaakkola, Jouni J.K.; Tobias, Aurelio; Vicedo-Cabrera, Ana Maria; Abrutzky, Rosana; Coelho, Micheline de Sousa Zanotti Stagliorio; Saldiva, Paulo Hilario Nascimento; Correa, Patricia Matus; Ortega, Nicolás Valdés; Kan, Haidong; Osorio, Samuel; Roye, Dominic; Orru, Hans; Indermitte, Ene; Schneider, Alexandra; Katsouyanni, Klea; Analitis, Antonis; Carlsen, Hanne Krage; Mayvaneh, Fatemeh; Roradeh, Hematollah; Raz, Raanan; Michelozzi, Paola; de'Donato, Francesca; Hashizume, Masahiro; Kim, Yoonhee; Alahmad, Barrak; Cauchy, John Paul; Diaz, Magali Hurtado; Arellano, Eunice Elizabeth Félix; Valencia, César De la Cruz; Overcenco, Ala; Houthuijs, Danny; Ameling, Caroline; Rao, Shilpa; Carrasco, Gabriel; Seposo, Xerxes; Chua, Paul Lester Carlos; Silva, Susana das Neves Pereira da; Nunes, Baltazar; Holobaca, Iulian-Horia; Cvijanovic, Ivana; Mistry, Malcolm; Scovronick, Noah; Acquaotta, Fiorella; Kim, Ho; Lee, Whanhee; Íñiguez, Carmen; Åström, Christofer; Ragettli, Martina S.; Guo, Yue Leon; Pan, Shih-Chun; Colistro, Valentina; Zanobetti, Antonella; Schwartz, Joel; Dang, Tran Ngoc; Dung, Do Van; Guo, Yuming; Li, ShanshanBackground: Exposure to cold spells is associated with mortality. However, little is known about the global mortality burden of cold spells. Methods: A three-stage meta-analytical method was used to estimate the global mortality burden associated with cold spells by means of a time series dataset of 1960 locations across 59 countries (or regions). First, we fitted the location-specific, cold spell-related mortality associations using a quasi-Poisson regression with a distributed lag non-linear model with a lag period of up to 21 days. Second, we built a multivariate meta-regression model between location-specific associations and seven predictors. Finally, we predicted the global grid-specific cold spell-related mortality associations during 2000-19 using the fitted meta-regression model and the yearly grid-specific meta-predictors. We calculated the annual excess deaths, excess death ratio (excess deaths per 1000 deaths), and excess death rate (excess deaths per 100 000 population) due to cold spells for each grid across the world. Findings: Globally, 205 932 (95% empirical CI [eCI] 162 692-250 337) excess deaths, representing 3·81 (95% eCI 2·93-4·71) excess deaths per 1000 deaths (excess death ratio), and 3·03 (2·33-3·75) excess deaths per 100 000 population (excess death rate) were associated with cold spells per year between 2000 and 2019. The annual average global excess death ratio in 2016-19 increased by 0·12 percentage points and the excess death rate in 2016-19 increased by 0·18 percentage points, compared with those in 2000-03. The mortality burden varied geographically. The excess death ratio and rate were highest in Europe, whereas these indicators were lowest in Africa. Temperate climates had higher excess death ratio and rate associated with cold spells than other climate zones. Interpretation: Cold spells are associated with substantial mortality burden around the world with geographically varying patterns. Although the number of cold spells has on average been decreasing since year 2000, the public health threat of cold spells remains substantial. The findings indicate an urgency of taking local and regional measures to protect the public from the mortality burdens of cold spells. Funding: Australian Research Council, Australian National Health and Medical Research Council, EU's Horizon 2020 Project Exhaustion.
- Regional variation in the role of humidity on city-level heat-related mortalityPublication . Guo, Qiang; Mistry, Malcolm N.; Zhou, Xudong; Zhao, Gang; Kino, Kanon; Wen, Bo; Yoshimura, Kei; Satoh, Yusuke; Cvijanovic, Ivana; Kim, Yoonhee; Ng, Chris Fook Sheng; Vicedo-Cabrera, Ana M.; Armstrong, Ben; Urban, Aleš; Katsouyanni, Klea; Masselot, Pierre; Tong, Shilu; Sera, Francesco; Huber, Veronika; Bell, Michelle L.; Kyselý, Jan; Gasparrini, Antonio; Hashizume, Masahiro; Oki, Taikan; Abrutzky, Rosana; Guo, Yuming; de Sousa Zanotti Stagliorio Coelho, Micheline; Nascimento Saldiva, Paulo Hilario; Lavigne, Eric; Ortega, Nicolás Valdés; Correa, Patricia Matus; Kan, Haidong; Osorio, Samuel; Roye, Dominic; Indermitte, Ene; Orru, Hans; Jaakkola, Jouni J K.; Ryti, Niilo; Pascal, Mathilde; Schneider, Alexandra; Analitis, Antonis; Entezari, Alireza; Mayvaneh, Fatemeh; Zeka, Ariana; Goodman, Patrick; de'Donato, Francesca; Michelozzi, Paola; Alahmad, Barrak; De la Cruz Valencia, César; Hurtado Diaz, Magali; Overcenco, Ala; Ameling, Caroline; Houthuijs, Danny; Rao, Shilpa; Carrasco, Gabriel; Seposo, Xerxes; Madureira, Joana; Silva, Susana; Holobaca, Iulian-Horia; Acquaotta, Fiorella; Scovronick, Noah; Kim, Ho; Lee, Whanhee; Tobias, Aurelio; Íñiguez, Carmen; Forsberg, Bertil; Ragettli, Martina S.; Pan, Shih-Chun; Guo, Yue Leon; Li, Shanshan; Schneider, Rochelle; Colistro, Valentina; Zanobetti, Antonella; Schwartz, Joel; Van Dung, Do; Ngoc Dang, Tran; Honda, YasushiThe rising humid heat is regarded as a severe threat to human survivability, but the proper integration of humid heat into heat-health alerts is still being explored. Using state-of-the-art epidemiological and climatological datasets, we examined the association between multiple heat stress indicators (HSIs) and daily human mortality in 739 cities worldwide. Notable differences were observed in the long-term trends and timing of heat events detected by HSIs. Air temperature (Tair) predicts heat-related mortality well in cities with a robust negative Tair-relative humidity correlation (CT-RH). However, in cities with near-zero or weak positive CT-RH, HSIs considering humidity provide enhanced predictive power compared to Tair. Furthermore, the magnitude and timing of heat-related mortality measured by HSIs could differ largely from those associated with Tair in many cities. Our findings provide important insights into specific regions where humans are vulnerable to humid heat and can facilitate the further enhancement of heat-health alert systems.
- Temperature frequency and mortality: Assessing adaptation to local temperaturePublication . Wu, Yao; Wen, Bo; Gasparrini, Antonio; Armstrong, Ben; Sera, Francesco; Lavigne, Eric; Li, Shanshan; Guo, Yuming; Overcenco, Ala; Urban, Aleš; Schneider, Alexandra; Entezari, Alireza; Vicedo-Cabrera, Ana Maria; Zanobetti, Antonella; Analitis, Antonis; Zeka, Ariana; Tobias, Aurelio; Nunes, Baltazar; Alahmad, Barrak; Forsberg, Bertil; Íñiguez, Carmen; Ameling, Caroline; Cruz Valencia, César De la; Houthuijs, Danny; Dung, Do Van; Roye, Dominic; Indermitte, Ene; Mayvaneh, Fatemeh; Acquaotta, Fiorella; de'Donato, Francesca; Carrasco-Escobar, Gabriel; Kan, Haidong; Carlsen, Hanne Krage; Orru, Hans; Kim, Ho; Holobaca, Iulian-Horia; Kyselý, Jan; Madureira, Joana; Schwartz, Joel; Jaakkola, Jouni J.K.; Katsouyanni, Klea; Diaz, Magali Hurtado; Ragettli, Martina S.; Hashizume, Masahiro; Pascal, Mathilde; Coelho, Micheline de Sousa Zanotti Stagliorio; Ortega, Nicolás Valdés; Ryti, Niilo; Scovronick, Noah; Michelozzi, Paola; Correa, Patricia Matus; Goodman, Patrick; Saldiva, Paulo Hilario Nascimento; Raz, Raanan; Abrutzky, Rosana; Osorio, Samuel; Pan, Shih-Chun; Rao, Shilpa; Tong, Shilu; Achilleos, Souzana; Dang, Tran Ngoc; Colistro, Valentina; Huber, Veronika; Lee, Whanhee; Seposo, Xerxes; Honda, Yasushi; Kim, Yoonhee; Guo, Yue Leon; Li, Shanshan; Guo, YumingAssessing the association between temperature frequency and mortality can provide insights into human adaptation to local ambient temperatures. We collected daily time-series data on mortality and temperature from 757 locations in 47 countries/regions during 1979–2020. We used a two-stage time series design to assess the association between temperature frequency and all-cause mortality. The results were pooled at the national, regional, and global levels. We observed a consistent decrease in the risk of mortality as the normalized frequency of temperature increases across the globe. The average increase in mortality risk comparing the 10th to 100th percentile of normalized frequency was 13.03% (95% CI: 12.17–13.91), with substantial regional differences (from 4.56% in Australia and New Zealand to 33.06% in South Europe). The highest increase in mortality was observed for high-income countries (13.58%, 95% CI: 12.56–14.61), followed by lower-middle-income countries (12.34%, 95% CI: 9.27–15.51). This study observed a declining risk of mortality associated with higher temperature frequency. Our findings suggest that populations can adapt to their local climate with frequent exposure, with the adapting ability varying geographically due to differences in climatic and socioeconomic characteristics.
- Temporal change in minimum mortality temperature under changing climate: A multicountry multicommunity observational study spanning 1986-2015Publication . Yang, Daewon; Hashizume, Masahiro; Tobías, Aurelio; Honda, Yasushi; Roye, Dominic; Oh, Jaemin; Dang, Tran Ngoc; Kim, Yoonhee; Abrutzky, Rosana; Guo, Yuming; Tong, Shilu; Coelho, Micheline de Sousa Zanotti Stagliorio; Saldiva, Paulo Hilario Nascimento; Lavigne, Eric; Correa, Patricia Matus; Ortega, Nicolás Valdés; Osorio, Samuel; Kyselý, Jan; Urban, Aleš; Orru, Hans; Indermitte, Ene; Jaakkola, Jouni; Ryti, Niilo; Pascal, Mathilde; Huber, Veronika; Schneider, Alexandra; Katsouyanni, Klea; Analitis, Antonis; Entezari, Alireza; Mayvaneh, Fatemeh; Goodman, Patrick; Zeka, Ariana; Michelozzi, Paola; de'Donato, Francesca; Alahmad, Barrak; Diaz, Magali Hurtado; la Cruz Valencia, César De; Overcenco, Ala; Houthuijs, Danny; Ameling, Caroline; Rao, Shilpa; Nunes, Baltazar; Madureira, Joana; Holo-Bâc, Iulian Horia; Scovronick, Noah; Acquaotta, Fiorella; Kim, Ho; Lee, Whanhee; Íñiguez, Carmen; Forsberg, Bertil; Vicedo-Cabrera, Ana Maria; Ragettli, Martina S; Guo, Yue-Liang Leon; Pan, Shih Chun; Li, Shanshan; Sera, Francesco; Zanobetti, Antonella; Schwartz, Joel; Armstrong, Ben; Gasparrini, Antonio; Chung, YeonseungBackground: The minimum mortality temperature (MMT) or MMT percentile (MMTP) is an indicator of population susceptibility to nonoptimum temperatures. MMT and MMTP change over time; however, the changing directions show region-wide heterogeneity. We examined the heterogeneity of temporal changes in MMT and MMTP across multiple communities and in multiple countries. Methods: Daily time-series data for mortality and ambient mean temperature for 699 communities in 34 countries spanning 1986-2015 were analyzed using a two-stage meta-analysis. First, a quasi-Poisson regression was employed to estimate MMT and MMTP for each community during the designated subperiods. Second, we pooled the community-specific temporally varying estimates using mixed-effects meta-regressions to examine temporal changes in MMT and MMTP in the entire study population, as well as by climate zone, geographical region, and country. Results: Temporal increases in MMT and MMTP from 19.5 °C (17.9, 21.1) to 20.3 °C (18.5, 22.0) and from the 74.5 (68.3, 80.6) to 75.0 (71.0, 78.9) percentiles in the entire population were found, respectively. Temporal change was significantly heterogeneous across geographical regions (P < 0.001). Temporal increases in MMT were observed in East Asia (linear slope [LS] = 0.91, P = 0.02) and South-East Asia (LS = 0.62, P = 0.05), whereas a temporal decrease in MMT was observed in South Europe (LS = -0.46, P = 0.05). MMTP decreased temporally in North Europe (LS = -3.45, P = 0.02) and South Europe (LS = -2.86, P = 0.05). Conclusions: The temporal change in MMT or MMTP was largely heterogeneous. Population susceptibility in terms of optimum temperature may have changed under a warming climate, albeit with large region-dependent variations.