表 8.

O₃8h浓度每升高10 μg/m³时不同性别和年龄儿童哮喘门诊就诊人次的超额危险度

Excess risk of childhood asthma hospital outpatient visits associated with a 10 μg/m³ increase in concentrations of O₃8h by gender and age %

Variables	ER(95%CI)
	Spring	Summer	Autumn	Winter
* P < 0.05. ER, excess risk.
Male	1.713 (-0.626 to 4.108)	1.973 (-1.581 to 5.656)	1.987 (-0.092 to 4.108)	1.215 (-0.825 to 3.297)
Female	0.486 (-2.410 to 3.468)	-1.249 (-5.536 to 3.232)	1.713 (-4.501 to 8.331)	-0.727 (-7.147 to 6.137)
0-5 years	0.226 (-1.662 to 2.150)	3.521 (0.806 to 6.309)*	2.926 (1.250 to 4.629)*	1.394 (-0.378 to 3.198)
6-14 years	1.669 (-0.135 to 3.506)	-0.606 (-3.688 to 2.574)	0.331 (-2.276 to 3.007)	0.973 (-1.884 to 3.913)