Environmental Health

Table 4 Odds ratios (95% CI) for the association between the occurrence of an appropriate ICD discharge and an interquartile range increase in 24 h mean air pollutant concentrations (n = 1919). Results were adjusted for 24 h mean temperature, relative humidity and barometric pressure

From: Do acute changes in ambient air pollution increase the risk of potentially fatal cardiac arrhythmias in patients with implantable cardioverter defibrillators?

Overall						Warm					Cold
Air Pollutant	No lag	1- day lag	2-day lag	3-day lag	4-day mean	No lag	1- day lag	2- day lag	3-day lag	4-day mean	No lag	1-day lag	2-day lag	3-day lag	4-day mean
SO₂, ppb	0.97 (0.91–1.03)	0.97 (0.91–1.03)	0.96 (0.91–1.02)	0.97 (0.91–1.03)	0.94 (0.85–1.03)	0.94 (0.86–1.02)	0.93 (0.85–1.02)	0.95 (0.87–1.03)	0.97 (0.90–1.06)	0.87 (0.76–0.99)	1.00 (0.91–1.09)	1.02 (0.93–1.11)	0.99 (0.90–1.08)	0.96 (0.88–1.05)	1.01 (0.89–1.15)
NO₂, ppb	1.00 (0.89–1.12)	1.02 (0.91–1.14)	0.97 (0.87–1.09)	0.99 (0.89–1.11)	0.89 (0.75–1.05)	0.81 (0.65–1.00)	0.83 (0.68–1.03)	0.85 (0.69–1.04)	0.90 (0.74–1.10)	0.82 (0.60–1.13)	1.07 (0.94–1.23)	1.10 (0.96–1.26)	1.03 (0.90–1.17)	1.04 (0.91–1.18)	0.91 (0.74–1.11)
Ozone, ppb	0.97 (0.86–1.09)	0.98 (0.87–1.10)	1.02 (0.91–1.14)	1.03 (0.92–1.15)	1.02 (0.88–1.19)	1.02 (0.87–1.19)	1.00 (0.86–1.17)	1.03 (0.88–1.19)	1.05 (0.90–1.22)	0.97 (0.80–1.18)	0.92 (0.75–1.13)	0.94 (0.76–1.15)	1.02 (0.83–1.24)	1.05 (0.87–1.28)	1.14 (0.86–1.50)
PM_2.5, μg/m³ (adj)	0.99 (0.92–1.06)	0.99 (0.92–1.06)	1.00 (0.93–1.07)	0.99 (0.92–1.07)	0.97 (0.88–1.07)	0.94 (0.85–1.05)	0.96 (0.86–1.08)	0.99 (0.88–1.10)	1.01 (0.90–1.12)	0.94 (0.81–1.08)	1.02 (0.93–1.13)	1.00 (0.91–1.11)	1.01 (0.91–1.11)	0.99 (0.90–1.09)	0.99 (0.87–1.14)
AQHI	0.99 (0.90–1.08)	0.98 (0.90–1.08)	0.98 (0.89–1.07)	0.98 (0.90–1.08)	0.92 (0.82–1.03)	0.93 (0.82–1.06)	0.91 (0.80–1.04)	0.94 (0.82–1.06)	0.94 (0.83–1.08)	0.87 (0.75–1.02	1.05 (0.92–1.20)	1.06 (0.93–1.22)	1.02 (0.89–1.17)	1.05 (0.92–1.20)	0.96 (0.8–1.14)

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