Table 2.
Outcomes for intervention and waitlist controls in a quasi-experimental evaluation study of a language-concordant automated telephone self-management / health coaching diabetes intervention by a low-income government-sponsored health care plan (n=252)
| Outcome | Intervention (n=127) | Waitlist (n=125) | |||||
|---|---|---|---|---|---|---|---|
| Baseline | 6 Months | Baseline | 6 Months | ||||
| Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Difference* (95% CI) | Standardized Effect Size* | p-value | |
| Physical SF-12 | 46.1 (9.0) | 47.4 (8.8) | 46.5 (9.5) | 45.5 (10.1) | 2.0 (0.1,3.9) | 0.25 | 0.03 |
| Mental SF-12 | 48.7 (10.7) | 50.4 (11.1) | 49.9 (10.4) | 49.4 (11.0) | 1.4 (−0.9,3.6) | 0.14 | 0.23 |
| Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Difference* (95% CI) | Rate Ratio* (95% CI) | p-value | |
|---|---|---|---|---|---|---|---|
| Self-reported days in bed in prior month | 1.4 (4.5) | 1.0 (3.3) | 1.0 (3.2) | 1.6 (5.1) | −0.5 (−1.3, 0.13) | 0.6 (0.3, 1.4) | 0.25 |
| Proportion | Proportion | Proportion | Proportion | Odds Ratio* (95% CI) | p-value | ||
|---|---|---|---|---|---|---|---|
| Diabetes interference† | 6.3% | 3.9% | 8.9% | 8.8% | 0.5 (0.2, 1.4) | 0.18 |
| Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Difference* (95% CI) | Standardized Effect Size* | p-value | |
|---|---|---|---|---|---|---|---|
| Overall Diabetes Self-Care | 4.5 (1.0) | 5.1 (0.9) | 4.4 (1.0) | 4.8 (1.1) | 0.3 (0.1, 0.5) | 0.29 | <0.01 |
| Medication adherence | 6.5 0.8) | 6.7 (0.7) | 6.3 (1.5) | 6.5 (1.1) | 0.0 (−0.2, 0.2) | 0.01 | 0.87 |
| Self-efficacy | 76.7 (13.7) | 82.6 (12.6) | 73.5 (17.7) | 80.1 (16.0) | 1.1 (−2.1, 4.2) | 0.07 | 0.49 |
| Patient assessment of chronic illness care | 44.0 (23.9) | 55.5 (24.1) | 45.2 (23.0) | 54.9 (23.3) | 1.3 (−3.0, 5.6) | 0.07 | 0.54 |
| Interpersonal processes of care | 58.4 (11.7) | 56.5 (11.1) | 58.3 (11.3) | 54.5 (11.3) | 2.0 (−0.4, 4.4) | 0.17 | 0.11 |
| Hemoglobin A1c | 8.0 (1.7) | 7.5 (1.1) | 7.9 (1.5) | 7.7 (1.2) | −0.3 (−0.6, 0.1) | −0.22 | 0.13 |
| Systolic blood pressure | 129 (20.2) | 129 (16.9) | 128 (19.2) | 128 (16.2) | 0.6 (−3.8, 5.1) | 0.03 | 0.78 |
| Diastolic blood pressure | 74.1 (12.4) | 75.8 (11.6) | 76.0 (12.6) | 74.6 (9.9) | 2.1 (−0.6, 4.9) | 0.19 | 0.13 |
| Low-density lipoprotein | 121.0 (42.4) | 106.0 (33.0) | 98.9 (29.1) | 90.8 (25.4) | 11.0 (−6.5, 28.4) | 0.28 | 0.22 |
*
Regression adjusted for baseline values.
†
Proportion of participants choosing responses of “often” or “always.”