. 2009 May 7;8:26. doi: 10.1186/1476-072X-8-26

Table 6.

Age-specific effect of 10% increase in pollutant concentration on asthma outpatient and emergency visits (%) in Taipei City at 0-day lag

	Outpatient (0-day lag)

Model-1	PM₁₀(95% CI)	SO₂(95% CI)	O₃(95% CI)	NO₂(95% CI)
Age 0–15	0.41 (0.13~0.69)*	0.28 (0.08~0.47)*	0.08 (-0.05~0.22)	0.66 (0.21~1.11)*
Age 16–65	0.43 (0.30~0.55)*	0.51 (0.36~0.66)*	0.22 (0.11~0.33)*	0.88 (0.65~1.11)*
Age >= 66	0.15 (0.00~0.29)*	0.36 (0.23~0.49)*	0.06 (-0.05~0.18)	0.29 (0.08~0.49)*
All Age	0.34 (0.22~0.46)*	0.44 (0.31~0.57)*	0.08 (0.03~0.14)*	0.65 (0.48~0.83)*

	Outpatient (0-day lag)

Model-2	PM₁₀(95% CI)	SO₂(95% CI)	O₃(95% CI)	NO₂(95% CI)

Age 0–15	0.26 (-0.10~0.63)	0.12 (-0.20~0.44)	-0.15 (-0.24~-0.05)*	0.22 (-0.15~0.59)
Age 16–65	0.24 (0.08~0.39)*	0.20 (0.04~0.36)*	-0.07 (-0.26~0.11)	0.46 (0.27~0.65)*
Age >= 66	0.07 (-0.10~0.25)	0.33 (0.19~0.47)*	-0.03 (-0.19~0.14)	0.03 (-0.25~0.32)
All Age	0.20 (0.01~0.39)*	0.27 (0.12~0.41)*	-0.13 (-0.24~-0.01)*	0.30 (0.16~0.45)*

	Emergency (0-day lag)

Model-1	PM₁₀(95% CI)	SO₂(95% CI)	O₃(95% CI)	NO₂(95% CI)

Age 0–15	0.12 (-0.44~0.67)	-0.04 (-0.24~0.16)	0.09 (-0.19~0.38)	0.17 (-0.30~0.64)
Age 16–65	-0.17 (-0.55~0.22)	-0.09 (-0.36~0.17)	-0.08 (-0.24~0.09)	-0.21 (-0.60~0.18)
Age >= 66	0.23 (-0.07~0.53)	-0.26 (-0.50~-0.01)*	-0.01 (-0.15~0.13)	-0.03 (-0.21~0.15)
All Age	0.03 (-0.24~0.29)	-0.06 (-0.27~0.14)	-0.06 (-0.24~0.13)	-0.09 (-0.47~0.28)

	Emergency (0-day lag)

Model-2	PM₁₀(95% CI)	SO₂(95% CI)	O₃(95% CI)	NO₂(95% CI)

Age 0–15	-0.04 (-0.42~0.34)	-0.01 (-0.35~0.33)	0.05 (-0.21~0.30)	-0.08 (-0.58~0.41)
Age 16–65	-0.08 (-0.53~0.37)	0.03 (-0.22~0.27)	-0.01 (-0.18~0.16)	-0.19 (-0.58~0.20)
Age >= 66	0.25 (-0.13~0.64)	-0.30 (-0.64~0.05)	0.03 (-0.17~0.22)	-0.01 (-0.37~0.35)
All Age	0.14 (-0.17~0.44)	-0.02 (-0.26~0.21)	-0.08 (-0.25~0.09)	-0.15 (-0.43~0.13)

*Model 1: Single pollutant model.

Model 2: Four pollutants model.

*Statistically significant.