Table 6.

Stratification analysis of the percent change of eczema risk associated with 10 mg/m³ increase of PM_2.5 and PM₁₀.

Pollutant (per 10 mg/m3)	Lag day	Male		Female		<12		12–64		≥65
		PC (%)	P	PC (%)	P	PC (%)	P	PC (%)	P	PC (%)	P
PM2.5	Lag 0	2.32 (2.03–2.61)	<0.001	2.31 (2.01–2.61)	<0.001	4.72 (4.18–5.28)	<0.001	1.92 (1.65–2.19)	<0.001	3.34 (2.9–3.78)	<0.001
	Lag 1	1.77 (1.47–2.07)	<0.001	1.82 (1.51–2.13)	<0.001	3.11 (2.54–3.68)	<0.001	1.59 (1.31–1.87)	<0.001	2.27 (1.82–2.73)	<0.001
	Lag 2	0.9 (0.61–1.19)	0.002	0.99 (0.68–1.29)	0.001	0.91 (0.36–1.46)	0.096	0.84 (0.57–1.12)	0.002	1.59 (1.14–2.03)	<0.001
	Lag 3	0.16 (-0.13–0.44)	0.579	0.41 (0.12–0.71)	0.160	−0.74 (−1.26-−0.22)	0.159	0.3 (0.03–0.56)	0.26	1.15 (0.72–1.59)	0.008
PM10	Lag 0	1.97 (1.76–2.18)	<0.001	1.97 (1.75–2.19)	<0.001	3.74 (3.34–4.14)	<0.001	1.66 (1.47–1.86)	<0.001	2.55 (2.24–2.87)	<0.001
	Lag 1	1.6 (1.38–1.81)	<0.001	1.71 (1.48–1.93)	<0.001	2.81 (2.4–3.23)	<0.001	1.46 (1.26–1.66)	<0.001	1.9 (1.57–2.23)	<0.001
	Lag 2	0.94 (0.73–1.15)	<0.001	1.01 (0.79–1.23)	<0.001	1.16 (0.77–1.56)	0.003	0.88 (0.69–1.08)	<0.001	1.27 (0.95–1.59)	<0.001
	Lag 3	0.39 (0.18–0.6)	0.059	0.65 (0.43–0.86)	0.002	−0.27 (-0.64–0.12)	0.485	0.53 (0.33–0.72)	0.006	0.99 (0.68–1.3)	0.002

PC, percentage change.