Table 2

Adjusted ORs of asthma and asthma severity documentation on the problem list (n=34 266)

Adjusted OR of asthma documented on problem list
OR (95% CI)
Adjusted OR of asthma severity documented on problem list
OR (95% CI)
Social Deprivation Index score*
 Quartile 1RefRef
 Quartile 21.01 (0.94 to 1.08)1.04 (0.96 to 1.13)
 Quartile 31.02 (0.95 to 1.09)1.01 (0.92 to 1.09)
 Quartile 41.00 (0.92 to 1.08)1.02 (0.93 to 1.12)
Race/ethnicity
 Non-Hispanic whiteRefRef
 Latino1.05 (0.97 to 1.12)1.00 (0.90 to 1.10)
 Non-Hispanic black1.32 (1.20 to 1.46)1.08 (0.97 to 1.21)
Age at first encounter (years)
 3–5RefRef
 6–101.32 (1.23 to 1.42)1.15 (1.05 to 1.25)
 11–131.19 (1.09 to 1.30)1.14 (1.01 to 1.29)
 14–170.99 (0.90 to 1.09)1.44 (1.19 to 1.75)
Sex
 FemaleRefRef
 Male1.16 (1.08 to 1.21)0.97 (0.92 to 1.02)
Insurance type
 Private insurance used at >1 clinic visitRefRef
 Never insured0.86 (0.73 to 1.01)1.62 (1.33 to 1.97)
 Public insurance used at >1 clinic visit1.05 (0.96 to 1.15)1.08 (0.96 to 1.22)
 Public and private insurance1.12 (0.99 to 1.27)0.88 (0.77 to 1.00)
Visits per year†
 <1RefRef
 1–21.18 (1.10 to 1.26)2.04 (1.80 to 2.30)
 3–41.41 (1.28 to 1.55)2.94 (2.57 to 3.37)
 ≥51.50 (1.34 to 1.67)417 (3.60 to 4.83)
BMI category
 Never overweight/obeseRefRef
 ≥1 visit with overweight/obese BMI1.19 (1.12 to 1.26)0.91 (0.84 to 0.98)
 Always overweight/obese1.14 (1.08 to 1.20)0.96 (0.90 to 1.02)
% federal poverty level
 Always ≥138RefRef
 Above and below 1381.13 (0.99 to 1.28)0.81 (0.70 to 0.93)
 Always <1381.10 (0.99 to 1.21)0.92 (0.82 to 1.03)
 Not documented1.00 (0.88 to 1.13)0.93 (0.80 to 1.08)
Neighbourhood change
 NoRefRef
 Yes1.04 (1.00 to 1.09)0.90 (0.85 to 0.95)
Smoking exposure
 Never exposedRefRef
 Ever exposed1.13 (1.05 to 1.21)0.98 (0.90 to 1.08)
 Unknown if exposed1.01 (0.93 to 1.10)0.90 (0.80 to 1.02)
  • *Quartile 1 of the Social Deprivation Index (SDI) score represents neighbourhoods with the least deprivation and quartile 4 represents neighbourhoods with the most deprivation. The SDI is a composite measure of deprivation from 10 variables in the following seven domains: income, education, employment, housing, household characteristics, transportation and demographics created by the Robert Graham Center using 2011–2015 American Community Survey 5-year estimates.

  • †Visits per year include all ambulatory visits.

  • BMI, body mass index.