Table 2.
Measure | Baseline (T1) |
1 Month (T2) |
4 Months (T3) |
10 Months (T4) |
Effect Size (d)* | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
EW |
NW |
EW |
NW |
EW |
NW |
EW |
NW |
||||||||||
Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | ||
MDASI | 1.52 | 1.53 | 1.48 | 1.59 | 1.22 | 1.51 | 1.62 | 1.52 | 1.31 | 1.48 | 1.40 | 1.44 | 1.09 | 1.42 | 1.64 | 1.64† | 0.40 |
BFI | 2.7 | 2.3 | 2.6 | 2.0 | 2.6 | 2.3 | 3.0 | 2.3 | 2.7 | 2.2 | 2.9 | 2.2 | 2.5 | 2.2 | 3.2 | 2.3‡ | 0.32 |
CES-D | 10.3 | 9.7 | 11.3 | 8.9 | 8.8 | 8.6 | 10.2 | 6.7 | 9.9 | 10.1 | 9.5 | 7.1 | 9.5 | 9.6 | 10.5 | 7.4 | 0.10 |
PSQI | 7.0 | 4.3 | 6.9 | 4.1 | 6.4 | 3.9 | 6.0 | 3.3 | 6.4 | 4.0 | 6.4 | 3.6 | 6.3 | 4.4 | 6.4 | 3.5 | 0.04 |
SF-36 MCS | 49.6 | 8.7 | 47.8 | 9.1 | 44.8 | 47.7 | 48.7 | 8.2 | 48.9 | 9.3 | 48.4 | 7.3 | 48.2 | 8.7 | 48.8 | 7.0 | 0.10 |
SF-36 PCS | 39.5 | 11.6 | 39.4 | 10.6 | 43.2 | 12.04 | 42.2 | 11.4 | 46.3 | 11.1 | 42.8 | 11.8 | 46.2 | 11.1 | 42.3 | 12.6‡§ | 0.44 |
IES | 17.8 | 15.1 | 19.6 | 15.0 | 11.3 | 13.7 | 15.9 | 14.0‖ | 12.0 | 12.9 | 13.4 | 14.4 | 12.7 | 14.7 | 13.8 | 14.3 | 0.03 |
Abbreviations: BFI, Brief Fatigue Inventory; CES-D, Center for Epidemiologic Studies Depression Scale; EW, emotional writing; IES, Impact of Events Scale; MCS, Mental Component Summary; MDASI, MD Anderson Symptom Inventory; NW, neutral writing; PCS, Physical Component Summary; PSQI, Pittsburgh Sleep Quality Index; SD, standard deviation; SF-36 Medical Outcomes Study Short Form-36.
Effect size, Cohen's d,60 for group differences at 10 months after the intervention (T4) using least square means adjusted for baseline levels, stage, age, sex, and education and baseline levels of IES and pooled SDs. Small effect, d = 0.2; medium effect, d = 0.5; and large effect, d = 0.8. Significant group differences for EW v NW are noted.
P < .01 from multilevel modeling analyses.
P < .05 from multilevel modeling analyses.
Clinically significant improvement from baseline.
P = .05 from multilevel modeling analyses.