Child and parental characteristics TCM user (%) TCM nonuser (%) Chi-square
value Age Infant and toddler 286 (11.9) 2,114 (88.1) <0.001 Preschool 1,779 (22.2) 6,223 (77.8) School 1,600 (21.5) 5,831 (78.5) Adolescent 369 (16.4) 1,878 (83.6) Gender Girls 1,675 (19.3) 6,990 (80.7) 0.019 Boys 2,359 (20.7) 9,056 (79.3) Previous use of TCM Yes 1,952 (12.5) 13,683 (87.5) <0.001 No 2,082 (46.8) 2,363 (53.2) Previous hospitalization Yes 3,331 (19.7) 13,598 (80.3) 0.001 No 703 (22.3) 2,448 (77.7) Controller medication used Yes 2,662 (21.3) 9,836 (78.7) <0.001 No 1,372 (18.1) 6,210 (81.9) Oral/systematic corticosteroid used Yes 1,851 (20.9) 7,000 (79.1) 0.010 No 2,183 (19.4) 9,046 (80.6) Number of outpatient visits in one year <3 2,161 (18.6) 9,431 (81.4) <0.001 3 1,873 (22.1) 6,615 (77.9) Density of TCM and WM Low TCM and low WM 563 (19.6) 2,315 (80.4) 0.006 Low TCM and high WM 326 (19.0) 1,393 (81.0) High TCM and low WM 857 (18.7) 3,717 (81.3) High TCM and high WM 2,288 (21.0) 8,621 (79.0) Incident year 2005 841 (18.7) 3,648 (81.3) <0.001 2006 710 (18.7) 3,080 (81.3) 2007 806 (19.8) 3,269 (80.2) 2008 677 (21.7) 2,438 (78.3) 2009 616 (23.2) 2,041 (76.8) 2010 384 (19.7) 1,570 (80.4) Parent’s insurable wage/category <20000 NTD 1,099 (18.6) 4,802 (81.4) 0.002 20000~39999 NTD 1,418 (20.5) 5,505 (79.5) ≥40000 NTD 987 (21.6) 3,586 (78.4) Special group 530 (19.8) 2,153 (80.3) Provider characteristics Age 40 1,772 (19.5) 7,336 (80.5) 0.108 41~50 1,672 (20.7) 6,391 (79.3) 51 590 (20.3) 2,319 (79.7) Sex Female 691 (21.6) 2,515 (78.5) 0.024 Male 3,343 (19.8) 13,531 (80.2) Specialty Family medicine 271 (16.9) 1,329 (83.1) 0.008 Internal medicine 247 (19.8) 1,001 (80.2) Pediatrics 2798 (20.6) 10,815 (79.5) Other 718 (19.8) 2,901 (80.2) Ownership Private 3,694 (20.1) 14,729 (80.0) 0.649 Public 340 (20.5) 1,317 (79.5) Accreditation level Hospital 1,921 (20.8) 7,301 (79.2) 0.016 Clinic 2,113 (19.5) 8,745 (80.5)