Table 4.

Overview of RRs (95% CIs) between respiratory ERV and an IQR increment of air pollutant while controlling for NO₂ or PM₁₀.^a

Pollutant	Time delay (days)	IQRb	While controlling for NO2	While controlling for PM10
NO2	3	40	—	1.07 (1.01–1.13)*
	4	40	—	1.07 (1.01–1.14)*
	5	40	—	1.08 (1.01–1.15)*
PNC50–100	2	3,600	1.06 (0.99–1.14)	1.07 (1.00–1.15)*
	3	3,600	1.06 (0.98–1.16)	1.08 (1.00–1.17)*
PNC100–300	2	4,400	1.08 (1.00–1.17)	1.10 (1.02–1.19)*
	3	4,400	1.06 (0.97–1.16)	1.11 (1.02–1.21)*
PSC50–100	2	60	1.06 (0.99–1.14)	1.07 (1.01–1.15)*
	3	60	1.07 (0.98–1.16)	1.09 (1.01–1.17)*
PSC100–300	2	440	1.07 (0.99–1.16)	1.10 (1.02–1.19)*
	3	440	1.05 (0.95–1.15)	1.10 (1.01–1.20)*

^aFor a complete table, see Supplemental Material, Table 3 (doi:10.1289/ehp.1002203). Estimates were calculated using cumulative effects models representing time-delayed effects with moving averages up to 6 days (mean of the same day and 5 previous days) and including both pollutants with the same lag, for example, same-day total particle number concentration and same-day NO₂ concentration.

^bUnits for IQR: NO₂ (μg/m³); PNC_x (1/cm³); PSC_x (μm²/cm³).

^*p < 0.05 (p-values for the null hypothesis that the corresponding parameter is zero).