Table 4.
Psychological distress (POMS) at 14 months and mean differences between groups (95 CI%)
| Outcome variable | n | Mean range | Mean (95% CI) | Mean difference (95% CI) | p Value |
| Anger/hostility | 0–28 | ||||
| Control group | 223 | 2.03 (1.59 to 2.48) | |||
| Intervention group | 230 | 1.88 (1.43 to 2.33) | −0.15 (−0.79 to 0.48) | 0.64 | |
| Confusion/bewilderment | 0–20 | ||||
| Control group | 229 | 2.45 (2.04 to 2.86) | |||
| Intervention group | 231 | 2.11 (1.69 to 2.53) | −0.34 (−0.92 to 0.25) | 0.26 | |
| Depression/dejection | 0–32 | ||||
| Control group | 223 | 3.85 (3.20 to 4.51) | |||
| Intervention group | 229 | 3.26 (2.61 to 3.92) | −0.59 (−1.52 to 0.34) | 0.21 | |
| Fatigue/inertia | 0–20 | ||||
| Control group | 226 | 4.65 (4.08 to 5.22) | |||
| Intervention group | 234 | 4.14 (3.02 to 4.10) | −0.51 (−1.32 to 0.29) | 0.21 | |
| Tension/anxiety | 0–24 | ||||
| Control group | 226 | 3.82 (3.28 to 4.36) | |||
| Intervention group | 233 | 3.56 (3.02 to 4.10) | −0.26 (−1.02 to 0.50) | 0.50 | |
| Vigour/activity | 0–24 | ||||
| Control group | 218 | 10.28 (9.51 to 11.05) | |||
| Intervention group | 228 | 10.09 (9.31 to 10.86) | −0.20 (−1.29 to 0.89) | 0.72 | |
| Total mood disturbance | 0–124 | ||||
| Control group | 200 | 4.87 (2.29 to 7.45) | |||
| Intervention group | 210 | 4.19 (1.62 to 6.76) | −0.68 (−4.32 to 2.97) | 0.72 |
Mean values of each subscale depends on the number of items related to the individual subscale which varies from 5 to 8, each item ranging from 0 to 4. Total mood disturbance is calculated by summing up the scores on the five negative symptom subscales and subtracting the score on the one positively scored subscale, vigour/activity. A higher score indicates a higher degree of symptoms/feelings within the related subscale.
POMS, Profile of Mood States.