Table 4.

The RR and percent change of eczema risk associated with 10 mg/m³ increase of PM_2.5 and PM₁₀.

Pollutant (per 10 mg/m3)	Lag day	RR	PC (%)	P
PM2.5	Lag 0	1.0233 (1.0206–1.0260)	2.33 (2.06–2.6)	<0.001
	Lag 1	1.0181 (1.0153–1.0209)	1.81 (1.53–2.09)	<0.001
	Lag 2	1.0095 (1.0068–1.0123)	0.95 (0.68–1.23)	<0.001
	Lag 3	1.0029 (1.0003–1.0056)	0.29 (0.03–0.56)	0.274
PM10	Lag 0	1.0197 (1.0177–1.0217)	1.97 (1.77–2.17)	<0.001
	Lag 1	1.0165 (1.0145–1.0186)	1.65 (1.45–1.86)	<0.001
	Lag 2	1.0098 (1.0078–1.0118)	0.98 (0.78–1.18)	<0.001
	Lag 3	1.0052 (1.0032–1.0071)	0.52 (0.32–0.71)	0.008

RR, risk ratio; PC, percentage change.