Table 3.
Associations of a Telephone Counseling Intervention with Secondary Outcome Measures at 12-Month Follow-up in Peripheral Arterial Disease Participants
| Exploratoryoutcomes
| ||||||||
|---|---|---|---|---|---|---|---|---|
| Outcome measures | Group | N | Baseline | 12-Month Follow-Up Value | Within Group Changes (95% Confidence Interval) | Between Group Changes Compared to the Attention ControlGroup† (95% Confidence Interval) | Pair-wise P value | P value |
| Percent of participants who increased their cholesterol-lowering medication at 12-month follow-up. | Usual Care | 122 | N/A | 32 (30.5%) | 32 (30.5%) | 2.071 (1.07, 3.99) | 0.03 | <0.001 |
| Attention Control | 120 | N/A | 18 (17.5%) | 18 (17.5%) | N/A | N/A | ||
| Intervention | 113 | N/A | 50 (53.8%) | 50 (53.8%) | 5.491 (2.86, 10.54) | <0.001 | ||
|
| ||||||||
| Percent who missed a cholesterol-lowering medication during the past week. | Usual Care | 92 | 16 (17.4%) | 16 (17.4%) | 0.0% (−10.1%,10.1%) | 1.481 (0.60, 3.64) | 0.398 | 0.698 |
| Attention Control | 78 | 9 (11.5%) | 9 (11.5%) | 0.0% (−10.0%,10.0%) | NA | NA | ||
| Intervention | 67 | 9 (13.4%) | 10 (14.9%) | 1.5% (−11.3%,14.3%) | 1.311 (0.49, 3.53) | 0.590 | ||
|
| ||||||||
| Percent of calories from saturated fat. | Usual Care | 110 | 12.0 (5.5) | 8.7 (6.3) | −3.4 (−4.7, −2.0) | −0.52 (−2.04, 1.01) | 0.506 | 0.777 |
| Attention Control | 110 | 10.7 (4.4) | 8.9 (5.7) | −1.8 (−3.1, −0.6) | NA | NA | ||
| Intervention | 95 | 11.2 (4.3) | 8.5 (5.4) | −2.6 (−3.9, −1.4) | −0.43 (−2.00, 1.14) | 0.591 | ||
|
| ||||||||
| Patient Activation Scale | Usual Care | 109 | 60.1 (13.9) | 61.2 (15.4) | 1.1 (−2.1, 4.2) | −.96 (−4.62, 2.70) | .60 | 0.014 |
| Attention Control | 110 | 61.0 (18.2) | 62.2 (17.5) | 1.2 (−2.3, 4.7) | NA | NA | ||
| Intervention | 93 | 63.5 (16.8) | 68.6 (18.4) | 5.1 (0.5, 9.6) | 4.44 (.62, 8.26) | .02 | ||
|
| ||||||||
| Perceived Efficacy in Patient-Physician Interactions (PEPPI) | Usual Care | 109 | 44.6 (8.1) | 45.5 (8.6) | 0.8 (−0.7, 2.3) | 1.92 (−.31, 4.15) | .09 | 0.021 |
| Attention Control | 110 | 42.1 (10.2) | 44.1 (9.7) | 2.0 (0.1, 3.8) | NA | NA | ||
| Intervention | 93 | 42.1 (11.5) | 46.6 (8.3) | 4.5 (2.9, 6.1) | 1.25 (−1.07, 3.58) | .29 | ||
|
| ||||||||
| Health Knowledge Score | Usual Care | 109 | 61.0 (18.8) | 66.5 (17.5) | 5.5 (3.0, 8.0) | 2.46 (−1.87, 6.81) | .26 | <0.001 |
| Attention Control | 111 | 56.8 (20.6) | 65.7 (17.3) | 8.9 (6.2, 11.7) | NA | NA | ||
| Intervention | 93 | 62.1 (17.2) | 76.5 (14.2) | 14.4 (11.4, 17.4) | 8.03 (3.50, 12.56) | .001 | ||
†
Indicates that analyses adjusted for baseline value.
1
Odds ratio.