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Table 5 Stratification analysis of the percent change of eczema risk associated with 10 mg/m3 increase of NO2

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

   Male   Female   < 12   12–65   ≥65  
Pollutant
(per 10 μg/m3)
Lag Day PC (%) P-value PC (%) P-valu PC (%) P-valu PC (%) P-valu PC (%) P-valu
NO2 Lag 0 4.14 (3.83–4.46) <.001 4.03 (3.7–4.36) <.001 7.22 (6.62–7.81) <.001 3.54 (3.24–3.84) <.001 4.93 (4.46–5.41) <.001
Lag 1 3.35 (3.01–3.7) <.001 3.23 (2.87–3.59) <.001 5.05 (4.41–5.7) <.001 2.96 (2.64–3.28) <.001 3.69 (3.16–4.21) <.001
Lag 2 1.59 (1.25–1.92) <.001 1.67 (1.33–2.02) <.001 1.1 (0.49–1.71) 0.07 1.62 (1.31–1.93) <.001 1.64 (1.14–2.14) 0.001
Lag 3 0.4 (0.09–0.72) 0.201 0.73 (0.4–1.05) 0.027 −1.13(− 1.7 - -0.56) 0.05 0.64 (0.35–0.94) 0.029 0.86 (0.39–1.35) 0.071
  1. Note: PC refers to the percentage change