Short-term effects of air pollution on hospitalization for acute myocardial infarction: age effect on lag pattern

Abstract

The aim of the present study is to analyse the age effect on the lag patterns of relative risk of hospitalization for acute myocardial infarction and NO, PM and O. Daily hospitalizations for AMI during the period 2008-2011 were extracted from administrative data. Analyses were performed using the quasi-Poisson regression model adjusted for seasonality, long-term trend, day of the week and temperature. We observed very different patterns depending on age. For NO and PM, the younger group (25-54 years) shows a more delayed effect in comparison with the two older age groups (55-64 and ≥ 65 years). Overall, the associations between NO and AMI are higher compared to PM. There are no associations between O and AMI. This study indicates that age plays a major role in the lag pattern. Younger people have delayed effects, but they are nevertheless sensitive to air pollution.

Short-Term Effects of Ambient Air Pollution on ST-Elevation Myocardial Infarction Events: Are There Potentially Susceptible Groups?

“…The study of Liu et al [11] found that increase in PM 2.5 concentration at lags 2, 3, 4, and 0–5 days corresponded with increases in STEMI admissions. Another study found that the hazardous effect of PM 10 on acute MI hospitalization was on lags 2 and 3 [41]. In our study, we found that PM 2.5 exposure corresponds to ED visits for STEMI on lag 0.…”

“…Kang et al [40] reported that patients with advance aged (≥60 years) were more susceptible to the hazardous effects of PM 2.5 on the risk for OHCA. However, Collart et al [41] found that the hazardous effect of PM 10 on the risk for MI was more prominent in the younger group (aged 25–54 years). In addition, the lag pattern was different among different age groups, with a more delayed effect shown in the younger groups (25–54 years) when compared with the other two older groups (55–64 and ≥65 years).…”

“…The difference could be caused by the different patient groups we enrolled. The studies of Collart et al [41] and Liu et al [11] enrolled patients admitted because of MI. In our study, we studied patients with ED visits due to STEMI.…”

Air pollution increases the risk of SSNHL: A nested case-control study using meteorological data and national sample cohort data

“…In addition, several recent studies have identified cardiovascular causes of SSNHL 14,15 . Because cardiovascular diseases are influenced by air pollution, air pollution might have an impact on SSNHL 16 . Furthermore, a number of recent studies demonstrated an association between hearing loss and air pollutants from cigarette smoking 17,18 .…”

Interactive effects of changing stratospheric ozone and climate on tropospheric composition and air quality, and the consequences for human and ecosystem health

“…A study on relative risk of hospitalization for acute myocardial infarction in Wallonia (Belgium) between 2008 and 2011 showed a stronger association between heart attack and incremental concentrations of NO2 (interquartile range g [IQR] = 14-26 µg m -3 , relative risk h [RR ] = 1.029; 95%CI, 1.009-1.049, P = 0.005) than PM10 (IQR = 14-30 µg m -3 , RR = 1.012; 95%CI, 1.001-1.023, P = 0.027). 105 There was no significant association between risk of heart attack and incremental concentration of O3 (IQR = 33-57 µg m -3 ). A study in China with 13,535 patients with acute ischemic stroke hospitalized to 12 participating centers showed an association between cardioembolic stroke and PM10 and concentrations of SO2.…”