Table 4 Mean SPHERE-21 IRT and sum score for each scale, wave and sex group
| Â | Â | Mean (SD) | Mean Females (SD) | Mean Males (SD) | Sex difference p-value |
|---|---|---|---|---|---|
TA | |||||
 Anxiety-depression | IRT score | −0.39 (1.6) | −0.27 (1.6) | −0.56 (1.7) | 7.6E-4 |
Sum score | 4.6 (4.8) | 5.0 (4.9) | 4.2 (4.6) | 8.8E-4 | |
 Chronic fatigue | IRT score | −0.24 (1.5) | −0.19 (1.4) | −0.30 (1.5) | 0.087 |
Sum score | 3.9 (3.4) | 3.9 (3.4) | 3.8 (3.5) | 0.37 | |
TM | |||||
 Anxiety-depression | IRT score | −0.44 (1.7) | −0.25 (1.7) | −0.67 (1.6) | 2.5E-6 |
Sum score | 4.1 (4.5) | 4.7 (5.0) | 3.3 (3.7) | 9.3E-10 | |
 Chronic fatigue | IRT score | −0.22 (1.5) | −0.15 (1.5) | −0.31 (1.4) | 0.042 |
Sum score | 4.0 (3.4) | 4.2 (3.6) | 3.7 (3.2) | 0.018 | |
TW2 | |||||
 Anxiety-depression | IRT score | −0.47 (1.7) | −0.47 (1.7) | −0.46 (1.7) | 0.88 |
Sum score | 3.7 (4.3) | 3.7 (4.2) | 3.7 (4.4) | 0.96 | |
 Chronic fatigue | IRT score | −0.28 (1.5) | −0.38 (1.5) | −0.18 (1.5) | 0.031 |
Sum score | 3.6 (3.3) | 3.4 (3.3) | 3.8 (3.3) | 0.079 | |
TW1 | |||||
 Anxiety-depression | IRT score | −0.4 (1.6) | −0.48 (1.7) | −0.30 (1.6) | 0.026 |
Sum score | 4.1 (4.4) | 3.9 (4.3) | 4.4 (4.5) | 0.023 | |
 Chronic fatigue | IRT score | −0.33 (1.6) | −0.48 (1.6) | −0.18 (1.5) | 2.5E-6 |
Sum score | 3.5 (3.3) | 3.3 (3.3) | 3.8 (3.4) | 9.7E-5 | |