3.4 Asthma admission
The meta-analysis showed that during COVID-19 pandemic, the asthma
admissions were lower than that before COVID-19 pandemic(OR =0.32,
95%CI= [0.19,0.54], Z=4.35 P<0.0001)(Figure 3). Heterogeneity test
analysis suggested there was no
heterogeneit(I2=0%,P=0.45).