Additional file 1: Fig. S1. of Ambient ozone and asthma hospital admissions in Texas: a time-series analysis

Histograms of pollen counts. A. Original data. B. Log-transformed data. Fig. S2 Histograms of aeroallergen counts. A. Original data. B. Log-transformed data. Table S1 Descriptive statistics of asthma HAs, ambient O3, pollen, and meteorological factors in Dallas, Houston, and Austin, Texas, from 2003 to 2011. Table S2 Associationsa between asthma HAs and ambient O3 concentrations in Dallas, Houston, and Austin, Texas, from 2003 to 2011. Table S3 Associationsa between asthma HAs and ambient O3 concentrations, with adjustment for pollen, in Dallas, Houston, and Austin, Texas, from 2003 to 2011. Table S4 Associations between asthma HAs and ambient O3 concentrations, with adjustment for pollen using alternative dataa for Dallas. Table S5 Associations between asthma HAs and ambient O3 concentrations, with adjustments for pollen and respiratory infection HAs, in Dallas, Houston, and Austin, Texas, from 2003 to 2011. Table S6 Results of asthma HAs per 10 ppb increase in O3 concentrations, with adjustment for aeroallergen, in Dallas and Houston, Texas, from 2003 to 2011. Table S7 Sensitivity analyses with different specifications of temperature and dew point . Table S8 Sensitivity analysesa with different specifications of temporal trend. Table S9 Sensitivity analysesa with O3 concentrations at lag −1 day. Table S10 Associationsa between acute appendicitis HAs and ambient O3 in Dallas, Houston, and Austin, Texas, from 2003 to 2011. (XLSX 95 kb)