Poluição da queima de cana e sintomas respiratórios em escolares de Monte Aprazível, SP

Riguera, Denise; André, Paulo Afonso de; Zanetta, Dirce Maria Trevisan

doi:10.1590/s0034-89102011005000052

Cited by 22 publications

(9 citation statements)

References 23 publications

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“…No association was found with PM 2.5 or BC in a rural panel study undertaken in the southeast of Brazil to investigate the effects of pre-harvest sugarcane burning on PEF [30]. Systematic reviews of panel studies demonstrated negative pooled effects of PM 10 and PM 2.5 on PEF [31], [32], [33].…”

Section: Discussionmentioning

confidence: 94%

Acute Effects of Particulate Matter and Black Carbon from Seasonal Fires on Peak Expiratory Flow of Schoolchildren in the Brazilian Amazon

et al. 2014

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BackgroundPanel studies have shown adverse effects of air pollution from biomass burning on children's health. This study estimated the effect of current levels of outdoor air pollution in the Amazonian dry season on peak expiratory flow (PEF).MethodsA panel study with 234 schoolchildren from 6 to 15 years old living in the municipality of Tangará da Serra, Brazil was conducted. PEF was measured daily in the dry season in 2008. Mixed-effects models and unified modelling repeated for every child were applied. Time trends, temperature, humidity, and subject characteristics were regarded. Inhalable particulate matter (PM10), fine particulate matter (PM2.5), and black carbon (BC) effects were evaluated based on 24-hour exposure lagged by 1 to 5 days and the averages of 2 or 3 days. Polynomial distributed lag models (PDLM) were also applied.ResultsThe analyses revealed reductions in PEF for PM10 and PM2.5 increases of 10 µg/m3 and 1 µg/m3 for BC. For PM10, the reductions varied from 0.15 (confidence interval (CI)95%: −0.29; −0.01) to 0.25 l/min (CI95%: −0.40; −0.10). For PM2.5, they ranged from 0.46 (CI95%: −0.86 to −0.06) to 0.54 l/min (CI95%:−0.95; −0.14). As for BC, the reduction was approximately 1.40 l/min. In relation to PDLM, adverse effects were noticed in models based on the exposure on the current day through the previous 3 days (PDLM 0–3) and on the current day through the previous 5 days (PDLM 0–5), specially for PM10. For all children, for PDLM 0–5 the global effect was important for PM10, with PEF reduction of 0.31 l/min (CI95%: −0.56; −0.05). Also, reductions in lags 3 and 4 were observed. These associations were stronger for children between 6 and 8 years old.ConclusionReductions in PEF were associated with air pollution, mainly for lagged exposures of 3 to 5 days and for younger children.

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Section: Discussionmentioning

confidence: 94%

Acute Effects of Particulate Matter and Black Carbon from Seasonal Fires on Peak Expiratory Flow of Schoolchildren in the Brazilian Amazon

et al. 2014

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“…One study found that this disease is highly prevalent among children and adolescent males treated at emergency centers 10 . Another analysis, a descriptive cross-sectional study on schoolchildren aged 10-14, reported a rate of 33.2% for allergic rhinitis but did not find differences in the frequency between genders 11 .…”

Section: Introductionmentioning

confidence: 93%

Total IgE plasma levels vary according to gender and age in Brazilian patients with allergic rhinitis

Couto

Falsarella

Mattos

et al. 2014

Clinics

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OBJECTIVE:Allergic rhinitis is a disease that affects the upper airways and causes inflammation of the nasal mucosa and it is mediated by IgE antibodies produced after sensitization to environmental allergens. Previous reports have indicated that this disease affects males more often than females. The objective of this study was to verify whether total IgE plasma levels vary between genders in patients suffering from allergic rhinitis.METHODS:A total of 171 adult patients suffering from allergic rhinitis (55 males and 116 females) were enrolled. Total IgE plasma levels were determined using commercial kits, with 140 IU/mL considered as a reference value. The mean total IgE plasma levels were compared according to gender and age.RESULTS:The mean age of the overall patient group with allergic rhinitis was 38.4±19.0 years and a significant difference in age was observed between genders (males: 32.2±17.8 years; females: 41.4±18.9 years; p = 0.0027). Additionally, the mean total IgE plasma levels were higher in males (413.0±143.0 IU/mL) than in females (147.9±98.0 IU/mL) (p<0.0001). These differences persisted even when males and females were stratified by age (up to or older than 20 years of age).CONCLUSIONS:In conclusion, total IgE plasma levels are higher in young adult males than in females suffering from allergic rhinitis. Evaluating total IgE plasma levels can be useful to identify patients at risk of allergic rhinitis in areas with low industrial pollution.

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“…Recent studies conducted in large and medium-sized cities in Brazil show that exposure to these pollutants is associated with hospitalizations for RD. [2][3][4][5][6][7][8][9][10][11] These pollutants are often quantified by metering stations maintained by state environmental agencies. However, not all states have environmental agencies and, even when they do, the metering stations do not quantify all pollutants.…”

Section: Introductionmentioning

confidence: 99%

Exposure to fine particulate matter and hospital admissions due to pneumonia: Effects on the number of hospital admissions and its costs

Patto

Nascimento

Mantovani

et al. 2016

Rev. Assoc. Med. Bras.

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Objective: Given that respiratory diseases are a major cause of hospitalization in children, the objectives of this study are to estimate the role of exposure to fine particulate matter in hospitalizations due to pneumonia and a possible reduction in the number of these hospitalizations and costs. Method: An ecological time-series study was developed with data on hospitalization for pneumonia among children under 10 years of age living in São José do Rio Preto, state of São Paulo, using PM 2.5 concentrations estimated using a mathematical model. We used Poisson regression with a dependent variable (hospitalization) associated with PM 2.5 concentrations and adjusted for effective temperature, seasonality and day of the week, with estimates of reductions in the number of hospitalizations and costs. Results: 1,161 children were admitted to hospital between October 1 st , 2011, and September 30 th , 2013; the average concentration of PM 2.5 was 18.7 µg/m 3 (≈32 µg/m 3 of PM 10 ) and exposure to this pollutant was associated with hospitalization four and five days after exposure. Conclusion: A 10 µg/m 3 decrease in concentration would imply 256 less hospital admissions and savings of approximately R$ 220,000 in a medium-sized city.

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Poluição da queima de cana e sintomas respiratórios em escolares de Monte Aprazível, SP

Cited by 22 publications

References 23 publications

Acute Effects of Particulate Matter and Black Carbon from Seasonal Fires on Peak Expiratory Flow of Schoolchildren in the Brazilian Amazon

Acute Effects of Particulate Matter and Black Carbon from Seasonal Fires on Peak Expiratory Flow of Schoolchildren in the Brazilian Amazon

Total IgE plasma levels vary according to gender and age in Brazilian patients with allergic rhinitis

Exposure to fine particulate matter and hospital admissions due to pneumonia: Effects on the number of hospital admissions and its costs

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