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Table 6 Stratification analysis of the percent change of exposure risk associated with 10 mg/m3 increase of NO2 in two-pollutant combinations

From: NO2 exposure increases eczema outpatient visits in Guangzhou, China: an indication for hospital management

Pollutant

(per 10 μg/m3)

Model type

Male

Female

< 12

12–65

≥65

NO2

NO2 + SO2

4.21 (3.83–4.59)

4.27 (3.88–4.67)

5.55 (4.84–6.27)

3.87 (3.51–4.23)

5.02 (4.44–5.6)

NO2 + O3

2.04 (1.8–2.29)

2.18 (1.93–2.44)

3.76 (3.31–4.22)

1.83 (1.6–2.05)

2.67 (2.3–3.05)

NO2 + PM10

2.25 (2.0–2.51)

2.42 (2.15–2.68)

3.38 (2.9–3.87)

2.07 (1.84–2.31)

3.03 (2.64–3.41)

NO2 + PM2.5

2.46 (2.12–2.79)

2.6 (2.25–2.94)

3.71 (3.09–4.34)

2.22 (1.91–2.54)

3.65 (3.15–4.16)

  1. Note: PC refers to the percentage change