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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