Table 4.

Characteristics Associated With Services Documented in OCHIN EHR Only vs in Medicaid Claims Only, or in Both Data Sets, in Study Population of OCHIN Diabetic Patients With a Medicaid Identification Number (N = 2,103), 2005–2007

Characteristic≥1 LDL Screen (n=1,836) AOR (95% CI)≥1 Influenza Vaccination (n=1,517) AOR (95% CI)≥1 Microalbumin Screen (n=1,517) AOR (95% CI)≥1 HbA1cScreen (n=2,025) AOR (95% CI)
AOR=adjusted odds ratio; CI=confidence interval; EHR = electronic health record; FPL = federal poverty level; LDL = low-density lipoprotein cholesterol. Data Sources: OCHIN EHR and Oregon Medicaid claims data.
Note : Service documented for a given service in at least 1 of the data sets: OCHIN EHR only (Figure 1, A) vs Medicaid claims (Figure 1, B+ab). Patients with no documented services in either EHR or claims database were excluded from analyses.
a Significant at P <.05.
Age (as of January 1, 2005), y
    19 to 351.001.001.001.00
    36 to 500.95 (0.63–1.44)1.06 (0.68–1.65)1.17 (0.76–1.80)1.22 (0.81–1.83)
    51 to 640.97 (0.65–1.44)1.12 (0.73–1.73)1.24 (0.81–1.89)1.18 (0.79–1.75)
    ≥655.54 (3.52–8.73)a4.10 (2.52–6.68)a12.89 (7.62–21.81)a6.61 (4.22–10.34)a
Sex
    Female1.001.001.001.00
    Male1.33 (1.08–1.65)a1.21 (0.97–1.52)1.38 (1.09–1.73)a1.28 (1.03–1.57)a
Primary language
    English1.001.001.001.00
    Spanish3.90 (1.86–8.17)a1.66 (0.84–3.27)4.24 (1.83–9.81)a2.50 (1.32–4.73)a
    Other0.91 (0.66–1.26)1.38 (0.97–1.95)0.53 (0.37–0.76)a1.00 (0.73–1.38)
    Unknown1.88 (1.00–3.53)4.74 (2.22–10.11)a1.52 (0.74–3.13)1.36 (0.72–2.55)
Household income, as percent of FPL
    ≥100%1.001.001.001.00
    0%–99%0.70 (0.53–0.92)a0.64 (0.48–0.86)a0.71 (0.52–0.97)a0.75 (0.57–0.98)a
    Unknown0.35 (0.15–0.79)a0.24 (0.10–0.57)a0.14 (0.04–0.43)a0.38 (0.18–0.81)a
Combined race/ethnicity
    White1.001.001.001.00
    Hispanic0.65 (0.32–1.32)1.36 (0.72–2.54)0.48 (0.22–1.07)0.98 (0.54–1.80)
    Other0.87 (0.66–1.16)0.74 (0.55–1.00)1.36 (1.02–1.82)a0.83 (0.63–1.11)
    Unknown0.79 (0.47–1.34)0.64 (0.36–1.15)1.02 (0.60–1.74)0.52 (0.29–0.94)a
Health insurance coverage (2005–2007)
    Full coverage1.001.001.001.00
    Not full coverage1.69 (1.33–2.14)a2.62 (2.04–3.36)a1.80 (1.40–2.32)a2.22 (1.77–2.80)a