Table 2.
Mean (95% CI)a of outcome measures from baseline to 6 months by condition group.
| Outcome measures | Control group, mean (95% CI) | Intervention group, mean (95% CI) | P b | Effect size Month 6c |
||
| Baseline (n=176) |
Month 6 (n=156) |
Baseline (n=176) |
Month 6 (n=147) |
|
|
|
| Fatigue (BFId) | 40.8 (38.9-42.8) | 40.7 (38.7-42.8) | 39.0 (37.0-40.9) | 36.4 (34.2-38.5) | .56 | .17 |
| Insomnia (WHIIRSe) | 9.6 (9.1-10.1) | 10.1 (9.6-10.7) | 9.6 (9.1-10.1) | 9.2 (8.7-9.8) | .03 | .20 |
| Depression (PHQf) | 7.7 (7.0-8.3) | 7.1 (6.4-7.7) | 6.5 (5.9-7.1) | 6.1 (5.4-6.7) | .69 | .19 |
| Fruit/vegetable intake, times/week | 22.7 (21.4-24.1) | 23.2 (21.7-24.7) | 24.3 (23.1-25.6) | 25.9 (24.6-27.3) | .24 | .21 |
| Strenuous or moderate aerobic exercise, min/week | 86.0 (72.3-99.7) | 96.2 (79.9-112) | 106 (91.1-120) | 137 (119-155) | .45 | .29 |
| Strenuous aerobic exercise, min/week | 29.0 (22.5-35.5) | 28.9 (21.8-36.0) | 32.0 (25.5-38.5) | 50.8 (40.7- 60.9) | .01 | .36 |
| Moderate aerobic exercise, min/week | 37.0 (30.9-43.2) | 45.3 (37.5-53.0) | 49.0 (42.2-55.7) | 54.1 (46.5- 61.7) | .49 | .10 |
| Mild aerobic exercise, min/week | 58.9 (51.5-66.2) | 65.0 (56.5-73.6) | 56.1 (48.9-63.3) | 74.1 (64.2-84.1) | .28 | .10 |
| Stretching min/week | 25.9 (21.3-30.4) | 24.7 (20.0-29.5) | 30.5 (25.1-35.8) | 45.7 (38.1-53.4) | .01 | .12 |
aAdjusted for age, race, sex, marital status, smoking status, education, years since diagnosis, site of cancer diagnosis, cancer stage. For outcomes of fatigue, insomnia, depression, and fruit/vegetable intake, means and 95% CIs were computed on the predicted values from the model. For outcomes of physical activity, means and 95% CIs were computed on the back-transformed predicted values (Y4-1), where Y represented the predicted values from the model.
bTreatment effect was assessed by the F test of the fixed 2-way interaction parameter for time and condition group.
cCalculated by taking the differences of the means at 6 months predicted from the model, including adjustment factors, divided by the standard deviation for the difference computed from the within and between subject variance components.
dBFI: Brief Fatigue Inventory
eWHIIRS: Women’s Health Initiative Insomnia Rating Scale
fPHQ: Patient Health Questionnaire