Table 2

Outcomes for Patients With HbA1C Levels Measured at 6 Months

OutcomeHealth Coaching (n = 122) Usual Care (n = 114)
Baseline6 moChange %Baseline6 moChange %Difference in Change Between Arms, %P ValueAdjustedaDifferenceAdjustedP Valuea
Primary and secondary
  HbA1c, mean (SD), %10.05 (2.0)8.98 (2.0)−1.07 (2.8)9.85 (2.0)9.55 (2.3)−0.30 (3.1)−0.77.01−0.69.01
  HbA1c <7.5%, No. (%)5 (4.1)27 (22.0)17.97 (6.1)17 (14.9)8.89.1.11.04
  Decrease in HbA1c ≥1.0%, No. (%)NA60 (49.6)NANA34 (31.5)NA18.1.005.001
Additional markers
  LDL-C,b mean (SD), mg/dL94.8 (30.7)90.9 (27.8)−3.9 (41.4)96.7 (37.1)93.7 (37.4)−3.0 (52.7)–0.9.83–2.0.60
  SBP,c mean (SD), mm Hg142.8 (23.1)144.2 (20.1)1.4 (22.3)144.0 (23.2)139.7 (24.1)−4.3 (26.0)5.7.063.4.19
  BMI,c mean (SD), kg/m235.1 (8.3)35.0 (8.2)−0.1 (1.85)32.9 (8.8)32.8 (8.6)−0.1 (1.4)–0.0.97–0.1.65
  • BMI = body mass index; HbA1c, = glycated hemoglobin; LDL-C = low-density lipoprotein cholesterol; NA = not applicable ;; SBP = systolic blood pressure.

  • a Adjusted for baseline differences in age, marital status, work status, use of insulin, hypertension, and BMI.

  • b Health coaching, n = 107; usual care, n = 96.

  • c Health coaching, n = 128; usual care, n = 123.