Table 3—

Effect of baseline patient characteristics on change in A1C

N*Usual laboratoryUsual POCActive laboratoryActive POC
Baseline A1CChange in A1CBaseline A1CChange in A1CBaseline A1CChange in A1CBaseline A1CChange in A1C
n1,4911,3631,5011,366
Overall5,7218.8–1.38.9–1.38.9–1.58.8–1.5
Age
    <65 years4,2419.0–1.49.0–1.49.1–1.79.0–1.7
    ≥65 years1,4708.5–1.08.6–1.08.6–1.38.4–1.1
Race
    White4,0348.7–1.28.7–1.28.7–1.48.6–1.5
    Black9149.4–1.59.6–1.99.5–1.99.3–1.7
    Hispanic5879.2–1.59.1–1.49.3–1.79.2–1.8
    Other1729.1–1.18.9–1.19.7–1.99.1–1.2
Duration of diabetes
    <5 years1,6538.8–1.49.0–1.68.8–1.68.9–1.8
    ≥5 years4,0378.9–1.38.9–1.29.0–1.58.8–1.4
BMI
    <28 kg/m21,0969.0–1.59.0–1.49.2–1.89.0–1.7
    28 kg/m2 ≤ BMI <40 kg/m23,3228.8–1.38.9–1.38.9–1.58.8–1.5
    ≥40 kg/m21,1768.8–1.19.0–1.38.8–1.38.8–1.5
Baseline A1C
    25th percentile7.7–0.47.8–0.37.8–0.67.7–0.5
    50th percentile8.5–1.08.7–1.18.6–1.28.6–1.3
    75th percentile9.6–1.79.8–1.79.8–2.09.7–2.1
    90th percentile10.8–3.111–3.411.1–3.610.8–3.4
  • * N varies based on availability of data. P < 0.01 for all age, diabetes duration, and BMI subgroups in all study arms.