Table 5.
Analyzes of Intervention Effects from Repeated Measures Models (Intent-to-Treat Analysis, N = 35).
| Outcome measure | Intervention vs control | Estimated least squares mean (SE) | Estimated T2-T1 difference (95% CI)* | Difference of estimated differences (95% CI) | P | Estimated T3-T1 difference (95% CI)* | Difference of estimated differences (95% CI) | P | ||
|---|---|---|---|---|---|---|---|---|---|---|
| T1 | T2 | T3 | ||||||||
| Self-efficacy for caregiving total | Intervention | 135.5 (6.3) | 142.2 (2.0) | 147.8 (7.0) | 6.7 (−5.9, 19.2) | 4.0 (−12.8, 20.9) | .63 | 12.2 (−0.3, 24.8) | 4.9 (−12.1, 21.9) | .56 |
| Control | 144.3 (6.1) | 146.9 (6.3) | 151.6 (6.4) | 2.6 (−9.5, 13.8) | 7.3 (−4.1, 18.8) | |||||
| Self-efficacy-managing medical information | Intervention | 22.4 (0.9) | 23.0 (1.0) | 23.9 (1.0) | 0.7 (−1.5, 2.9) | 0.3 (−2.7, 3.3) | .83 | 1.5 (−0.7, 3.7) | 0.6 (−2.4, 3.6) | .69 |
| Control | 22.0 (0.8) | 22.3 (.9) | 22.9 (0.9) | 0.3 (−1.6, 2.3) | .9 (−1.1, 2.9) | |||||
| Self-efficacy-caring for care-recipient | Intervention | 52.9 (1.9) | 53.3 (2.2) | 55.2 (2.2) | 0.4 (−3.8, 4.6) | 0.9 (−4.7, 6.5) | .76 | 2.3 (−1.9, 6.5) | 2.8 (−2.9, 8.4) | .33 |
| Control | 55.1 (1.9) | 54.6 (2.0) | 54.6 (2.0) | −0.5 (−4.2, 3.2) | −0.5 (−4.3, 3.3) | |||||
| Self-efficacy- caring for oneself | Intervention | 25.7 (2.2) | 28.9 (2.4) | 29.0 (2.4) | 3.2 (−1.3,7.6) | 0.4 (−5.6,6.5) | .89 | 3.3 (−1.2, 7.8) | −1.7 (−7.8, 4.3) | .57 |
| Control | 28.1 (2.1) | 30.8 (2.2) | 33.1 (2.3) | 2.7 (−1.3,6.7) | 5.0 (1.0, 9.1) | |||||
| Self-efficacy-managing difficult interactions/emotions | Intervention | 34.5 (2.3) | 37.1 (2.5) | 39.6 (2.5) | 2.6 (−1.7,6.9) | 2.4 (−3.4,8.2) | .40 | 5.1 (0.8, 9.4) | 3.1 (−2.8,8.9) | .29 |
| Control | 39.1 (2.2) | 39.3 (2.3) | 41.1 (2.3) | 0.2 (−3.7,4.0) | 2.0 (−1.9, 5.9) | |||||
| Self-efficacy for progressive muscle relaxation total | Intervention | 11.9 (1.3) | 15.7 (1.5) | 17.3 (1.5) | 3.8 (1.2, 6.4) | 5.4 (1.9, 8.9) | .0034 | 5.4 (2.8, 8.0) | 5.9 (2.3, 9.5) | .0016 |
| Control | 13.3 (1.3) | 11.8 (1.4) | 12.8 (1.4) | −1.6 (−3.9, 0.8) | −0.5 (−2.9,1.9) | |||||
| Center for Epidemiological Studies-Depression (CES-D) | Intervention | 19.7 (3.0) | 19.9 (3.3) | 17.2 (3.3) | 0.2 (−.5.3, 5.7) | 4.9 (−2.5,12.2) | .19 | −2.6 (−8.1,3.0) | 3.8 (−3.6, 11.3) | .31 |
| Control | 19.3 (2.9) | 14.6 (3.0) | 12.9 (3.1) | −4.7 (−9.5, 0.2) | −6.4 (−11.4, −1.4) | |||||
| PROMIS Emotional Distress Anxiety Short Form-8a | Intervention | 59.2 (2.3) | 56.3 (2.6) | 53.8 (2.6) | −2.9 (−8.1, 2.2) | 0.8 (−6.1,7.7) | .83 | −5.4 (−10.6, −0.3) | 0.6 (−6.4, 7.5) | .87 |
| Control | 60.0 (2.2) | 56.3 (2.3) | 54.0 (2.4) | −3.7 (−8.3,0.9) | −6.0 (−10.7, −1.3) | |||||
| Caregiver Quality of Life Index-Cancer (CqoL-Canc) total | Intervention | 87.6 (5.5) | 88.6 (5.9) | 92.8 (5.9) | 0.9 (−7.8, 9.6) | −1.7 (−13.4, 9.9) | .49 | 5.1 (−3.6, 13.8) | −4.4 (−16.2, 7.3) | .45 |
| Control | 87.3 (5.8) | 89.9 (5.4) | 96.8 (5.5) | 2.7 (−5.1, 10.4) | 9.6 (1.6, 17.5) | |||||
*
Estimated as difference of least squares means from mixed model containing time (T1,T2, T3, corresponding to pre-intervention, intervention conclusion, and 6-week post intervention conclusion weeks) and intervention condition and first-order time × intervention condition interaction terms.
Bolded numbers reflect significant findings.