Meteorological parameters and pollutants on asthma exacerbation in Bangalore, India – an ecological retrospective time-series study

Kunikullaya, Kirthana Ubrangala; Vijayaraghava, Ambarish; Asha, P.; Kunnavil, Radhika; Muralimohan, BV

doi:10.1515/jbcpp-2016-0074

Cited by 10 publications

(4 citation statements)

References 39 publications

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“…As shown in Tables 3 and 4, 31% (5/16) of the studies found that temperature was the only factor associated with asthma hospitalization or EDVs [4, 9, 11, 15, 18, 25]. Nearly 37% (6/16) of the studies found that both temperature and relative humidity were associated with HAs (Table 4) [6, 9, 16, 18, 21, 22].…”

Section: Resultsmentioning

confidence: 99%

Effects of Meteorological Factors on Hospitalizations in Adult Patients with Asthma: A Systematic Review

Bodaghkhani

Mahdavian

MacLellan

et al. 2019

Canadian Respiratory Journal

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Background. Environmental factors such as weather variables contribute to asthma exacerbation. The impact of meteorological factors on asthma-related hospital admissions (HAs) or emergency department visits (EDVs) has been assessed in the literature. We conducted a systematic review to establish a conclusion of whether these findings from the literature are consistent and generalizable or if they vary significantly by certain subgroups. Objective. This study aims to review the effect of meteorological variables on asthma HAs and EDVs in adults, to identify knowledge gaps and to highlight future research priorities. Method. A systematic search was conducted in electronic databases such as PubMed, Embase, and CINAHL. All studies published in English were screened and included if they met the eligibility criteria. Two independent reviewers assessed the quality of the studies and extracted the data. The available evidence was summarized and presented using a harvest plot. Results. Our initial search returned a total of 3887 articles. After screening titles, abstracts, and full texts, 16 studies were included. Thirty-one percent of the included studies (5/16) found that temperature was the only factor associated with asthma hospitalization or EDVs. Six studies (37%) found that both temperature and relative humidity were associated with HAs. Four studies (25%) identified thunderstorms as a possible factor associated with asthma hospitalization in adults. Conclusion. Our review suggests that HAs and EDVs due to asthma are associated with many meteorological factors. Among the articles included in this review, changing temperature is the most commonly studied variable. We did not find studies that measured barometric pressure, weather phenomena, or the effect of tornados. To develop effective strategies to protect subjects at risk, further studies are required.

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Section: Resultsmentioning

confidence: 99%

Effects of Meteorological Factors on Hospitalizations in Adult Patients with Asthma: A Systematic Review

Bodaghkhani

Mahdavian

MacLellan

et al. 2019

Canadian Respiratory Journal

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“…The particle sizes indoor were smaller than those in ambient air in the heating season and vice versa in non-heating season [33]. Third, although the cold temperature can stress the body and result in symptom exacerbation, whereas hot temperature is associated with higher asthma prevalence, due to increased exposure to other relevant factors such as allergens [34], rainfall or humidity [35, 36] .…”

Section: Discussionmentioning

confidence: 99%

The effect and burden modification of heating on adult asthma hospitalizations in Shijiazhuang: a time-series analysis

Liu

Zhang

et al. 2019

Respir Res

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Background Previous studies have found associations between asthma morbidity and air pollution especially in young population, (PLoS One 12:e0180522, 2017; Can J Public Health 103:4-8, 2012; Environ Health Perspect 118:449-57, 2010; Am J Respir Crit Care Med 182:307-16, 2010; J Allergy Clin Immunol 104:717-22, 2008; J Allergy Clin Immunol 104:717-22, 1999; Environ Res 111:1137-47, 2011) but most of them were conducted in areas with relatively low air pollutant level. Moreover, very few studies have investigated the effect and burden modification of heating season during which the ambient air pollution level is significantly different from that during non-heating season in north China. Objectives This study aimed to evaluate the effect and burden modification of heating on short-term associations between adult asthma hospitalizations and ambient air pollution in the north China city of Shijiazhuang. Methods Generalized additive models combined with penalized distributed lag nonlinear models were used to model associations between daily asthma hospitalizations and ambient air pollutants from 1 January 2013 to 16 December 2016 in Shijiazhuang city, adjusting for long-term and seasonality trend, day of week, statutory holiday, daily mean air pressure and temperature. Attributable risks were calculated to evaluate the burden of asthma hospitalizations due to air pollutants exposure. The effect of pollutants on hospitalization and the attributable measures were estimated in heating and non-heating season separately and the comparisons between the two seasons were conducted. Results All pollutants demonstrated positive and significant impacts on asthma hospitalizations both in heating season and non-heating season, except for O 3 in heating season where a negative association was observed. However, the differences of the pollutant-specific effects between the two seasons were not significant. SO 2 and NO 2 exposure were associated with the heaviest burden among all pollutants in heating season; meanwhile, PM 10 and PM 2.5 were associated with the heaviest burden in heating season. Conclusions In conclusion, we found evidence of the effect of ambient air pollutants on asthma hospitalizations in Shijiazhuang. The central heating period could modify the effects in terms of attributable risks. The disease burden modification of heating should be taken into consideration when planning intervention measures to reduce the risk of asthma hospitalization.

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“…26,27 Furthermore, evidence shows that burden of noncommunicable diseases are increasing in India, and their risk factors have notably high prevalence even among adolescents, although our review revealed that information related to adolescent health in general and with particular emphasis on impact of air pollution in India is in scarce, there is large number of studies in India that investigated the effect of air pollution on various groups of population. (2,4,31,32,33,34,35,36,37,38,39,40) Moreover, that there are recent attempts in examining health effects of air pollution in different age groups in India, including adolescents in a cohort study design. 41 On the other hand, urbanization is happening in fast speed in developing countries with many of cities located in Asian countries with high number of population and low per capita income; consequently, population of these cities affected by air pollution along with other social and environment risk factors.…”

Section: Discussionmentioning

confidence: 99%

Outdoor Air Pollution and Adolescent: Upcoming Public Health Issue

Mehra

Usmanova

Behera

2018

IJoYAH

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Background: In India, as in the rest of the world, young people face several challenges to their well-being. One of the important challenges is air pollution; however, the impact of air pollution on adolescents' health is not fully explored.Objective: This article represents an attempt to explore impact of air pollution on adolescents' health through available width of information.Method: For this study we utilized the rapid review methodology that allows comprehensive review of the literature that describes urgent public health issue in the relatively short period.Result: It has been found that air pollution not only leads respiratory ailments of adolescents, but also has an impact on cardiovascular system, development of hyperactivity disorder, cancer, and many other conditions. Moreover, exposure to air pollution could increase susceptibility to chronic diseases later in life. This article can play a key part in raising the awareness of adolescents' health issues related to air pollution, initiate discussions and actions on preventing future damaging health effect for this subset of population.

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Meteorological parameters and pollutants on asthma exacerbation in Bangalore, India – an ecological retrospective time-series study

Abstract: In Bangalore city, levels of NO2 and particulate matter, temperature, rainfall, and season increase asthma exacerbations.

Cited by 10 publications

References 39 publications

Effects of Meteorological Factors on Hospitalizations in Adult Patients with Asthma: A Systematic Review

Effects of Meteorological Factors on Hospitalizations in Adult Patients with Asthma: A Systematic Review

The effect and burden modification of heating on adult asthma hospitalizations in Shijiazhuang: a time-series analysis

Outdoor Air Pollution and Adolescent: Upcoming Public Health Issue

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