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. Author manuscript; available in PMC: 2012 Jul 1.
Published in final edited form as: Med Care. 2011 Jul;49(7):641–648. doi: 10.1097/MLR.0b013e318215d0c9

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.