10.1371/journal.pone.0166614.g005 Tahir Taj Tahir Taj Emilie Stroh Emilie Stroh Daniel Oudin Åström Daniel Oudin Åström Kristina Jakobsson Kristina Jakobsson Anna Oudin Anna Oudin Adjusted odds ratio at PHCC level. Public Library of Science 2016 background air pollution levels asthma 2010. Nitrogen dioxide levels association 2 levels air pollution concentrations health care clinics visit CI air pollution monitoring stations Scania air pollution areas air pollution 2016-11-18 17:48:30 Figure https://plos.figshare.com/articles/figure/Adjusted_odds_ratio_at_PHCC_level_/4242728 <p>Adjusted odds ratio at PHCC level.</p>