表 7.

O₃max1h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 O₃max1h by gender and age %

Variables	ER(95%CI)
	Spring	Summer	Autumn	Winter
* P < 0.05. ER, excess risk.
Male	0.382 (-1.478 to 2.277)	1.997 (0.197 to 3.829)*	4.877 (0.818 to 9.099)*	2.030 (1.794 to 6.004)*
Female	0.639 (-0.556 to 1.849)	1.752 (-0.647 to 4.209)	0.552 (-1.149 to 2.283)	0.762 (-0.767 to 2.315)
0-5 years	1.551 (-0.314 to 3.451)	3.351 (1.231 to 5.516)*	5.805 (0.686 to 11.185)*	2.162 (0.556 to 3.794)*
6-14 years	-0.250 (-2.683 to 2.244)	2.945 (-0.033 to 6.012)	0.939 (-0.578 to 2.480)	1.367 (-3.392 to6.361)