Table 5.
Linear Regression for MPAI-4 and Existential Well-Being
| HRQOL subdomain | β | SE | t | p |
|---|---|---|---|---|
| Caregiver Specific Anxiety (TBI-CareQOL) | ||||
| MPAI-4 | .95 | .16 | 3.92 | <.001 |
| EWBS | .11 | .18 | .63 | .53 |
| MPAI-4 × EWBS | −.44 | .003 | −1.76 | .08 |
| Caregiver Strain (TBI-CareQOL) | ||||
| MPAI-4 | 1.28 | .16 | 5.57 | <.001 |
| EWBS | .29 | .18 | 1.85 | .07 |
| MPAI-4 × EWBS | −.88 | .003 | −3.71 | <.001 |
| Feeling Trapped (TBI-CareQOL) | ||||
| MPAI-4 | 1.09 | .13 | 5.34 | <.001 |
| EWBS | .15 | .14 | 1.09 | .28 |
| MPAI-4 × EWBS | −.62 | .003 | −2.96 | .003 |
| Feelings of Loss (TBI-CareQOL) | ||||
| MPAI-4 | .75 | .16 | 3.42 | <.001 |
| EWBS | − .21 | .17 | −1.4 | .16 |
| MPAI-4 × EWBS | −.31 | .003 | −1.41 | .16 |
| Anxiety (PROMIS) | ||||
| MPAI-4 | .74 | .18 | 2.91 | .004 |
| EWBS | − .06 | .20 | −.34 | .74 |
| MPAI-4 × EWBS | −.51 | .004 | −1.99 | <.001 |
| Depression (PROMIS) | ||||
| MPAI-4 | .73 | .16 | 3.07 | .002 |
| EWBS | −.11 | .17 | −.69 | .49 |
| MPAI-4 × EWBS | −.55 | .003 | −2.27 | .02 |
| Fatigue (PROMIS) | ||||
| MPAI-4 | .89 | .18 | 3.64 | <.001 |
| EWBS | .09 | .20 | .54 | .59 |
| MPAI-4 × EWBS | − .63 | .003 | −2.50 | .01 |
| Anger (PROMIS) | ||||
| MPAI-4 | .77 | .19 | 2.83 | .005 |
| EWBS | .00 | .21 | .02 | .99 |
| MPAI-4 × EWBS | − .60 | .004 | −2.16 | .03 |
| Ability to Participate in SRA (PROMIS)a | ||||
| MPAI-4 | −.79 | .17 | −3.42 | <.001 |
| EWBS | .05 | .19 | .29 | .77 |
| MPAI-4 × EWBS | .47 | .003 | 1.96 | .05 |
| Emotional Support (PROMIS)a | ||||
| MPAI-4 | .20 | .19 | .76 | .45 |
| EWBS | .63 | .21 | 3.39 | .001 |
| MPAI-4 × EWBS | −.49 | .004 | −1.79 | .07 |
| Satisfaction with SRA (PROMIS)a | ||||
| MPAI-4 | − .43 | .17 | −1.70 | .09 |
| EWBS | .29 | .19 | 1.65 | .10 |
| MPAI-4 × EWBS | .14 | .003 | .53 | .59 |
| Social Isolation (PROMIS) | ||||
| MPAI-4 | .84 | .18 | 3.64 | <.001 |
| EWBS | − .06 | .19 | − .40 | .69 |
| MPAI-4 × EWBS | −.56 | .003 | −2.41 | .02 |
| Burden (CAS)a | ||||
| MPAI-4 | −.97 | .20 | −4.80 | <.001 |
| EWBS | .02 | .22 | .13 | .90 |
| MPAI-4 × EWBS | .55 | .004 | 2.65 | .01 |
| Satisfaction (CAS)a | ||||
| MPAI-4 | −.34 | .12 | −1.22 | .22 |
| EWBS | .17 | .13 | .89 | .38 |
| MPAI-4 × EWBS | .38 | .002 | 1.31 | .19 |
| Ideology (CAS)a | ||||
| MPAI-4 | −.05 | .08 | −.18 | .86 |
| EWBS | −.09 | .09 | − .42 | .68 |
| MPAI-4 × EWBS | .22 | .002 | .72 | .47 |
| Mastery (CAS)a | ||||
| MPAI-4 | −.34 | .06 | −1.21 | .23 |
| EWBS | .23 | .06 | 1.18 | .24 |
| MPAI-4 × EWBS | .12 | .001 | .41 | .69 |
Note. Regressions are adjusted for military status of the person with traumatic brain injury (TBI), relationship to the person with TBI, caregiver gender, and caregiver race; TBI-CareQOL = Quality of Life in Caregivers of Persons with Traumatic Brain Injury; HRQOL = health-related quality of life; PROMIS = Patient-Reported Outcomes Measurement Information System; CAS = Caregiver Appraisal Scale; MPAI-4 = Mayo-Portland Adaptability Inventory (4th ed.); EWBS = Existential Well-Being subscale; SRA = Social Roles and Activities.
a
Higher scores indicate better HRQOL.