Table 5 Comparisons of percent changes in PEF during and post-exposure in the transport hub and the park
Time points | Transport hub | Park | P value | ||
|---|---|---|---|---|---|
Mean | 95 % CI | Mean | 95 % CI | ||
During exposure 1 h | −4.51 | −5.66, −3.36 | −1.91 | −3.01, −0.81 | 0.03* |
During exposure 2 h | −5.29 | −6.44, −3.87 | −2.41 | −3.84, −0.98 | 0.02* |
Post-exposure 5 h | −2.42 | −4.17, −0.67 | −2.08 | −3.62, −0.54 | 0.08 |
Post-exposure 7 h | −1.63 | −3.59, 0.33 | −1.76 | −3.72, 0.20 | 0.32 |
Post-exposure 9 h | −3.02 | −5.03, −1.02 | −2.87 | −4.50, −1.24 | 0.24 |
Post-exposure 22 h | −3.23 | −5.23, −1.23 | −2.82 | −4.73, −0.91 | 0.36 |