Table 3.
Change in HbA1c from baseline to 1-year follow-up by intervention completion.
| Baseline HbA1c group | Baseline HbA1c (%), mean (SD) | 1-year HbA1c (%) mean (SD) | HbA1c change (%), mean (SD) | P value | |
| Pooled (all participants) |
|
|
|
|
|
|
|
All participants (N=1000) | 7.78 (2.10) | 7.03 (2.04) | –0.76 (1.46) | <.001 |
|
|
Completers (N=528) | 7.40 (1.81) | 6.23 (1.19) | –1.17 (1.43) | <.001 |
|
|
Partial completers (N=144) | 7.00 (1.72) | 6.40 (1.44) | –0.60 (1.69) | <.001 |
|
|
Noncompleters (N=328) | 8.75 (2.33) | 8.59 (2.43) | –0.16 (1.13) | .01 |
| Elevated (HbA1c≥7.5%) |
|
|
|
|
|
|
|
All participants (n=447) | 9.58 (1.80) | 8.36 (2.22) | –1.22 (1.75) | <.001 |
|
|
Completers (N=191) | 9.23 (1.71) | 7.06 (1.35) | –2.16 (1.76) | <.001 |
|
|
Partial completers (N=47) | 8.88 (1.37) | 7.26 (1.67) | –1.62 (1.97) | <.001 |
|
|
Noncompleters (N=209) | 10.06 (1.84) | 9.79 (2.12) | –0.28 (1.06) | <.001 |
| Slightly elevated (HbA1c 6.5-7.4%) |
|
|
|
|
|
|
|
All participants (N=296) | 6.90 (0.28) | 6.22 (0.90) | –0.68 (0.89) | <.001 |
|
|
Completers (N=182) | 6.88 (0.27) | 6.01 (0.69) | –0.87 (0.68) | <.001 |
|
|
Partial completers (N=42) | 6.92 (0.31) | 6.23 (0.86) | –0.69 (0.87) | <.001 |
|
|
Noncompleters (N=72) | 6.93 (0.27) | 6.74 (1.18) | –0.19 (1.16) | .16 |
| Normal (HbA1c<6.5%) |
|
|
|
|
|
|
|
All participants (N=257) | 5.68 (0.68) | 5.65 (0.95) | –0.03 (1.06) | .64 |
|
|
Completers (N=155) | 5.77 (0.61) | 5.47 (0.75) | –0.30 (0.75) | <.001 |
|
|
Partial completers (N=55) | 5.45 (0.80) | 5.79 (1.22) | 0.33 (1.36) | .07 |
|
|
Noncompleters (N=47) | 5.66 (0.69) | 6.08 (1.07) | 0.42 (1.24) | .02 |