Table 4.
Adjusted mixed-effects model of change in grief by study group from 3-month to 12-month interviews, with pairwise contrastsa
| Grief estimated marginal means (95% CI) |
F value | p | |
|---|---|---|---|
| Study groupb | 4.17 | .02 | |
| Timec | 17.56 | <.001 | |
| Study group-by-time interaction | 2.83 | .06 | |
| Control, 3-month | 90.10 (84.84, 95.37) | ||
| DVD-not watched, 3-month | 87.44 (80.89, 94.00) | ||
| DVD-watched, 3-month | 103.03 (96.16, 109.91) | ||
| Control, 12-month | 85.37 (80.10, 90.63) | ||
| DVD-not watched, 12-month | 83.92 (77.37, 90.47) | ||
| DVD-watched, 12-month | 89.70 (82.82, 96.58) | ||
|
| |||
| Pairwise Contrasts (Differences) | t value | ||
|
| |||
| Between-groups differences in grief at 3 months (95% CI) | |||
|
| |||
| DVD-not watched – control | −2.66 (−11.10, 5.79) | −0.63 | .53 |
| DVD-watched – control | 12.93 (4.27, 21.59) | 2.97 | .004 |
| DVD-watched – DVD-not watch | 15.59 (6.58, 24.60) | 3.44 | <.001 |
|
| |||
| Between-groups differences in grief at 12 months (95% CI) | |||
|
| |||
| DVD-not watched – control | −1.45 (−9.89, 7.00) | −.0.34 | .73 |
| DVD-watched – control | 4.33 (−4.33, 12.99) | 1.00 | .32 |
| DVD-watched – DVD-not watch | 5.78 (−3.23, 14.79) | 1.28 | .21 |
|
| |||
| Change in grief (12 month – 3 month) within each group (95% CI) | |||
|
| |||
| Control | −4.74 (−9.56, 0.09) | −1.95 | .05 |
| DVD-not watched | −3.52 (−9.67, 2.62) | −1.14 | .26 |
| DVD-watched | −13.33 (−19.97, −6.70) | −4.00 | <.001 |
Abbreviation: CI, confidence interval.
a
Model adjusted for parent’s age, baby’s age at death, spiritual/religious beliefs, social support, and elevated depressed mood at 3 months.
b
Control, DVD-not watched, DVD-watched.
c
3-month to 12-month interviews.