Table 2.
Changes in Step-Counts, Depressive Symptoms, and other Proximal Endpoints
Baseline | 12-Months | P- value | ||||
---|---|---|---|---|---|---|
Usual Care | CBT | Usual Care | CBT | (Between Group Difference (95% CI) | ||
Step Counts | 3139 ± 2361 | 3226 ± 1860 | 3314 ± 2516 | 4499 ± 2612* | 1131 (535 to 1728) | .0002 |
Beck Depression Inventory(↓ better) | ||||||
Mean ± SD | 26.5 ± 9.9 | 26.7 ± 7.7 | 18.6 ± 10.7* | 14.2 ± 10.3* | −4.5 (−6.7 to −2.4) | <.0001 |
% < 14 | 0 | 0 | 39 | 58 | −2.1 (−3.4 to −.74) | .002 |
% > 29 | 34 | 32 | 18 | 10 | −4.9 (−9.7 to −.08) | .05 |
Coping Orientation(↑ better) | 64.7 ± 10.5 | 64.8 ± 10.3 | 77.2 ± 12.8* | 80.8 ± 12.3* | 3.2 (.71 to 5.7) | .012 |
Perceived Competence(↓ better) | ||||||
Overall | 19.1 ± 5.3 | 19.3 ± 5.1 | 20.0 ± 6.4 | 18.4 ± 5.6 | −1.6 (−2.9 to −.36) | .01 |
Physical Activity Subscale | 9.3 ± 3.1 | 9.6 ± 3.1 | 10.7 ± 4.0 | 9.3 ± 3.4 | −1.4 (−2.3 to −.6) | .0006 |
Dietary Subscale | 9.8 ± 3.4 | 9.7 ± 3.4 | 9.3 ± 3.5 | 9.1 ± 3.6 | −.17 (−.9 to .56) | .64 |
Medication Adherence(↑ better) | ||||||
Diabetes Medications | 8.5 ± 1.0 | 8.4 ± 0.7 | 8.6 ± 1.0 | 8.6 ± 1.0 | −.04 (−.24 to .16) | .7 |
Depression Medications | 8.7 ± 0.9 | 8.6 ± 1.1 | 8.9 ± 1.0 | 8.9 ± 1.0 | .05 (−.25 to .35) | .8 |
Beliefs About Medications | ||||||
Overall (↑greater net benefit) | 30.0 ± 6.7 | 30.1 ± 5.9 | 31.1 ± 6.1 | 30.8 ± 5.9 | −.36 (−1.6 to .87) | .6 |
Necessity (↓greater need) | 10.3 ± 4.1 | 10.7 ± 3.8 | 10.4 ± 3.9 | 10.7 ± 4.2 | −.004 (−.78 to .77) | 1.0 |
Concerns (↓ greater concern) | 19.7 ± 4.9 | 19.3 ± 4.6 | 20.7 ± 4.6 | 20.1 ± 5.1 | −.38 (−1.4 to .59) | .4 |
Notes: Asterisks indicate a significant (p<.05) within group change between baseline and follow-up.