Table 4.
Changes in scores on the Kidney Disease Quality of Life instrument through the study period among the groups (intention-to-treat analysis)
| Individual measures and comparisonsa | Slope estimateb (±standard error) | 95% confidence interval | p value |
|---|---|---|---|
| Effects of Kidney Disease (EKD) | |||
| FTF PM slope | 2.21±1.68 | −1.10, 5.52 | 0.19 |
| Online PM slope | 4.13±1.65 | 0.87, 7.40 | 0.01 |
| Textbook-only slope | −0.50±1.76 | −3.97, 2.97 | 0.77 |
| FTF PM slope versus online PM slope | −1.93±2.35 | −6.58, 2.72 | 0.41 |
| FTF PM slope versus textbook only | 2.71±2.42 | −2.08, 7.50 | 0.26 |
| Online PM slope versus textbook-only slope | 4.64±2.41 | −0.12, 9.40 | 0.06 |
| Burden of Kidney Disease (BKD) | |||
| FTF PM slope | 3.00±2.16 | −1.27, 7.27 | 0.17 |
| Online PM slope | 5.44±2.12 | 1.24, 9.63 | 0.01 |
| Textbook-only slope | −0.99±2.28 | −5.50, 3.53 | 0.67 |
| FTF PM slope versus online PM slope | −2.44±3.03 | −8.42, 3.54 | 0.42 |
| FTF PM slope versus textbook-only slope | 3.99±3.14 | −2.22, 10.19 | 0.21 |
| Online PM slope versus textbook-only slope | 6.43±3.12 | 0.27, 12.58 | 0.04 |
| Symptoms and Problems of Kidney Disease (SPKD) | |||
| FTF PM slope | 3.41±2.27 | −0.46, 6.36 | 0.13 |
| Online PM slope | 6.00±2.20 | 3.09, 8.91 | 0.006 |
| Textbook-only slope | −2.71±1.94 | −6.20, 0.78 | 0.16 |
| FTF PM slope versus online PM slope | −2.59±3.17 | −6.08, 0.90 | 0.42 |
| FTF PM slope versus textbook-only slope | 6.12±2.98 | 2.62, 9.38 | 0.04 |
| Online PM slope versus textbook-only slope | 8.71±2.94 | 5.35, 12.07 | 0.003 |
| SF-12 Physical Composite Summary Score | |||
| FTF PM slope | 0.64±0.80 | −0.94, 2.22 | 0.43 |
| Online PM slope | 2.50±0.79 | 0.95, 4.06 | 0.001 |
| Textbook-only slope | −0.70±0.84 | −2.36, 0.97 | 0.41 |
| FTF PM slope versus online PM slope | −1.86±1.12 | −4.08, 0.36 | 0.10 |
| FTF PM slope versus textbook-only slope | 1.34±1.16 | −0.96, 3.63 | 0.25 |
| Online PM slope versus textbook-only slope | 3.20±1.15 | 0.92, 5.48 | 0.01 |
| SF-12 Mental Composite Summary Score | |||
| FTF PM slope | 1.43±0.86 | −0.28, 3.13 | 0.10 |
| Online PM slope | 3.46±0.85 | 1.78, 5.13 | <0.001 |
| Textbook slope | 1.13±0.91 | −0.66, 2.92 | 0.21 |
| FTF PM slope versus online PM slope | −2.03±1.21 | −4.42, 0.36 | 0.10 |
| FTF PM slope versus textbook-only slope | 0.30±1.25 | −2.17, 2.77 | 0.81 |
| Online PM slope versus textbook-only slope | 2.32±1.24 | −0.13, 4.78 | 0.06 |
FTF, face-to-face; PM, peer mentoring; SF-12, Short-Form-12.
a
Adjusted for race, ethnicity, sex, age quartile, marital status, attended or completed college, employment status, and rural/urban location.
b
The slope estimates represent change in scores in standard points over 18 months.