. 2016 May 19;6:25900. doi: 10.1038/srep25900

Table 3. The percentage change and 95% CI in mortality from COPD associated with a 10 μg/m³ increase in air pollutant concentrations at lag 0–15 days.

Factors	PM₁₀	SO₂	NO₂
All	1.58 (0.12–3.06)	3.45 (1.30–5.66)	2.35 (0.42–4.32)
Age (years)
<65	−3.02 (−9.04–3.39)	−1.22 (−9.86–8.25)	−6.52 (−14.12–1.75)
≥65	1.83 (0.32–3.37)	3.77 (1.54–6.06)	2.86 (0.86–4.90)
Gender
Male	2.04 (0.19–3.93)	4.47 (1.72–7.30)	2.75 (0.30–5.27)
Female	0.91 (−1.42–3.29)	1.93 (−1.47–5.45)	1.76 (−1.31–4.92)
Educational attainment
Low	2.21 (0.48–3.96)	3.57 (1.04–6.16)	2.90 (0.64–5.22)
High	0.14 (−2.68–3.04)	2.90 (−1.31–7.29)	0.97 (−2.80–4.88)

Table 3. The percentage change and 95% CI in mortality from COPD associated with a 10 μg/m3 increase in air pollutant concentrations at lag 0–15 days.