10.1371/journal.pone.0227733.t001 Siyu Dai Siyu Dai Kate Ching Ching Chan Kate Ching Ching Chan Demographic characteristics of the children and their ETS exposure condition (N = 1541). Public Library of Science 2020 AOR risk factors risk factors Background Environmental tobacco smoke Hong Kong Island tobacco control interventions Hong Kong Results 1541 children household ETS exposure guide health promotion planning tobacco smoke exposure prevalence CI pneumococcal carriage surveillance study New Territories West analysis 2020-01-14 18:29:12 Dataset https://plos.figshare.com/articles/dataset/Demographic_characteristics_of_the_children_and_their_ETS_exposure_condition_N_1541_/11606106 <p>Demographic characteristics of the children and their ETS exposure condition (N = 1541).</p>