Table 4. Health and Wellness Measures Over Time and Difference of Differences at 6 and 12 Months Between P2P and SCS, Inverse Probability Weighted Model With 448 Participants.
| Measure | Score (95% CI) | 6 mo | 12 mo | ||||
|---|---|---|---|---|---|---|---|
| Baseline | 6 mo | 12 mo | Change from baseline (95% CI) | Difference of differences (95% CI) | Change from baseline (95% CI) | Difference of differences (95% CI) | |
| Health status and quality of life | |||||||
| Mental health component | |||||||
| SCS | 50.4 (48.6 to 52.2) | 50.7 (48.9 to 52.5) | 51.3 (49.4 to 53.1) | 0.3 (−1.3 to 1.9) | 1.8 (−0.7 to 4.3) | 0.9 (−0.7 to 2.5) | 0.2 (−2.3 to 2.7) |
| P2P | 48.9 (47.0 to 50.7) | 50.9 (48.9 to 53.0) | 49.9 (47.9 to 52.0) | 2.1 (0.2 to 4.0) | 1.1 (−0.8 to 3.0) | ||
| Physical health component | |||||||
| SCS | 41.2 (39.5 to 43.0) | 40.4 (38.6 to 42.4) | 40.6 (38.8 to 42.4) | −0.9 (−2.3 to 0.5) | 1.0 (−1.2 to 3.3) | −0.6 (−2.1 to 0.8) | 1.7 (−0.6 to 3.9) |
| P2P | 35.3 (33.5 to 37.2) | 35.5 (33.5 to 37.5) | 36.4 (34.4 to 38.3) | 0.2 (−1.6 to 1.9) | 1.0 (−0.7 to 2.8) | ||
| Depressive symptomsa | |||||||
| SCS | 3.77 (3.53 to 4.02) | 3.21 (2.96 to 3.45) | 3.38 (3.12 to 3.64) | −0.57 (−0.80 to −0.33) | 0.24 (−0.14 to 0.62) | −0.39 (−0.65 to −0.14) | 0.04 (−0.35 to 0.44) |
| P2P | 3.86 (3.60 to 4.13) | 3.54 (3.26 to 3.81) | 3.51 (3.23 to 3.80) | −0.33 (−0.62 to −0.03) | −0.35 (−0.65 to −0.05) | ||
| Anxiety symptomsa | |||||||
| SCS | 1.61 (1.38 to 1.84) | 1.31 (1.08 to 1.55) | 1.31 (1.07 to 1.55) | −0.30 (−0.47 to −0.12) | 0.01 (−0.26 to 0.29) | −0.30 (−0.48 to −0.12) | 0.32 (0.04 to 0.61)b |
| P2P | 1.82 (1.57 to 2.06) | 1.54 (1.28 to 1.79) | 1.84 (1.58 to 2.10) | −0.28 (−0.50 to −0.07) | 0.02 (−0.20 to 0.24) | ||
| Lonelinessa | |||||||
| SCS | 1.56 (1.47 to 1.65) | 1.52 (1.43 to 1.61) | 1.55 (1.46 to 1.64) | −0.04 (−0.11 to 0.03) | 0.00 (−0.11 to 0.10) | −0.01 (−0.08 to 0.06) | 0.06 (−0.05 to 0.16) |
| P2P | 1.72 (1.63 to 1.81) | 1.68 (1.58 to 1.77) | 1.77 (1.67 to 1.86) | −0.04 (−0.12 to 0.04) | 0.05 (−0.03 to 0.13) | ||
| Self-efficacy | |||||||
| SCS | 3.43 (3.35 to 3.51) | 3.35 (3.27 to 3.43) | 3.29 (3.21 to 3.37) | −0.08 (−0.15 to −0.02) | 0.05 (−0.05 to 0.15) | −0.14 (−0.21 to −0.08) | 0.07 (−0.03 to 0.17) |
| P2P | 3.26 (3.18 to 3.35) | 3.23 (3.15 to 3.32) | 3.19 (3.10 to 3.28) | −0.03 (−0.11 to 0.05) | −0.07 (−0.15 to 0.01) | ||
| Resilience | |||||||
| SCS | 3.58 (3.47 to 3.69) | 3.46 (3.35 to 3.58) | 3.63 (3.52 to 3.75) | −0.12 (−0.22 to −0.02) | 0.11 (−0.04 to 0.26) | 0.05 (−0.05 to 0.15) | −0.23 (−0.38 to −0.08)b |
| P2P | 3.46 (3.34 to 3.57) | 3.45 (3.32 to 3.57) | 3.28 (3.15 to 3.40) | −0.01 (−0.13 to 0.11) | −0.18 (−0.30 to −0.06) | ||
| Social supporta | |||||||
| SCS | 3.62 (3.47 to 3.76) | 3.55 (3.40 to 3.70) | 3.72 (3.57 to 3.87) | −0.07 (−0.17 to 0.04) | 0.08 (−0.10 to 0.25) | 0.10 (0.00 to 0.21) | −0.04 (−0.21 to 0.12) |
| P2P | 3.47 (3.32 to 3.62) | 3.48 (3.32 to 3.4) | 3.53 (3.37 to 3.69) | 0.01 (−0.12 to 0.14) | 0.06 (−0.07 to 0.19) | ||
| Self-reported disabilitya | |||||||
| Activities of daily living | |||||||
| SCS | 0.28 (0.17 to 0.39( | 0.28 (0.17 to 0.39) | 0.35 (0.24 to 0.46) | 0.00 (−0.09 to 0.09) | 0.04 (−0.10 to 0.19) | 0.07 (−0.02 to 0.17) | −0.05 (−0.20 to 0.09) |
| P2P | 0.47 (0.35 to 0.58) | 0.51 (0.39 to 0.63) | 0.48 (0.36 to 0.61) | 0.04 (−0.07 to 0.15) | 0.02 (−0.10 to 0.13) | ||
| Instrumental activities of daily living | |||||||
| SCS | 0.93 (0.68 to 1.19) | 1.29 (1.03 to 1.55) | 1.10 (0.83 to 1.37) | 0.36 (0.13 to 0.59) | 0.04 (−0.33 to 0.40) | 0.17 (−0.08 to 0.41) | 0.00 (−0.38 to 0.38) |
| P2P | 1.70 (1.43 to 1.97) | 2.02 (1.73 to 2.31) | 1.87 (1.68 to 2.16) | 0.32 (0.04 to 0.61) | 0.17 (−0.12 to 0.46) | ||
| Basic mobility and strength | |||||||
| SCS | 1.49 (1.35 to 1.62) | 1.24 (1.10 to 1.38) | 1.49 (1.34 to 1.69) | −0.24 (−0.35 to −0.13) | 0.08 (−0.10 to 0.25) | 0.00 (−0.12 to 0.12) | 0.05 (−0.14 to 0.23) |
| P2P | 1.87 (1.73 to 2.02) | 1.71 (1.55 to 1.86) | 1.92 (1.76 to 2.07) | −0.17 (−0.30 to −0.03) | 0.05 (−0.09 to 0.19) | ||
| Physical function | |||||||
| SCS | 2.43 (2.22 to 2.63) | 2.09 (1.88 to 2.29) | 2.27 (2.06 to 2.48) | −0.34 (−0.51 to −0.17) | 0.09 (−0.18 to 0.37) | −0.15 (−0.34 to 0.03) | 0.10 (−0.18 to 0.39) |
| P2P | 3.03 (2.81 to 3.24) | 2.78 (2.55 to 3.01) | 2.98 (2.75 to 3.21) | −0.25 (−0.46 to −0.03) | −0.05 (−0.27 to 0.17) | ||
Abbreviations: P2P, peer-to-peer; SCS, standard community services.
a
Smaller numbers indicate better health.
b
P < .05.