just failed to reach significancep = 0.054
We found that PEF was also reduced only at high levels of O 3 during the weekdays ( p = 0.040) though it just failed to reach significance over the whole week ( p = 0.054).
We found that PEF was also reduced only at high levels of O 3 during the weekdays ( p = 0.040) though it just failed to reach significance over the whole week ( p = 0.054).