Table 2. Characteristics of Participating Primary Care Practices (n = 21)
CharacteristicPractices, n (%)
Electronic health record utilization17 (81)
Disease registry utilization20 (95)
Rural location9 (43)
Practice patient volume
    Small (<60 patient visits/day)7 (33)
    Medium (60–100 patient visits/day)8 (38)
    Large (>100 patient visits/day)6 (29)
Medicaid and Medicare population/payer mix
    >25% of patient population insured by Medicaid14 (67)
    >20% of patient population insured by Medicare7 (33)
Past participation in formal practice improvement17 (81)
On-site processes
    Phlebotomy14 (67)
    Preparation of blood samples before transport to the laboratory12 (57)
    Collection of stool samples20 (95)
    Collection of urine samples13 (62)
    Clinical Laboratory Improvement Amendment–waived laboratories13 (62)
    Licensed laboratory as part of practice5 (24)
Test result delivery method from external laboratoriesCommercial Laboratory “A”Commercial Laboratory “B”Hospital
    Fax10 (48%)8 (38%)8 (38%)
    Dedicated printer1 (5%)1 (5%)4 (19%)
    Directly downloaded to electronic heath record10 (48%)9 (43%)8 (38%)
    Other1 (5%)1 (5%)6 (29%)