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Characteristics of 2-steps 3-cluster analysis solution for 164 subjects with no medical or psychiatric exclusions. |
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| Characteristic |
Cluster 1 Most Severe (n = 30) |
Cluster 2 Intermediate (n = 67) |
Cluster 3 Least Severe (n = 67) |
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| SF-36 Scales (mean ± sd) |
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| Physical function |
49.5 ± 21.8 |
71.8 ± 20.1 |
91.0 ± 10.3 |
| Role physical |
12.5 ± 26.9 |
48.1 ± 36.0 |
92.5 ± 19.5 |
| Bodily pain |
39.5 ± 18.3 |
53.7 ± 16.5 |
79.4 ± 15.6 |
| General health |
45.4 ± 19.3 |
67.4 ± 13.8 |
85.3 ± 12.6 |
| Vitality |
14.3 ± 11.0 |
34.6 ± 15.8 |
69.6 ± 16.0 |
| Social function |
45.4 ± 24.0 |
67.9 ± 18.4 |
96.3 ± 8.7 |
| Role emotional |
47.8 ± 41.7 |
74.1 ± 35.2 |
96.0 ± 13.6 |
| Mental health |
61.5 ± 19.5 |
74.4 ± 13.5 |
86.9 ± 9.1 |
| MFI Scales (mean ± sd) |
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| General fatigue |
18.4 ± 1.4 |
15.1 ± 2.7 |
8.7 ± 3.2 |
| Physical fatigue |
15.4 ± 2.7 |
11.6 ± 2.8 |
6.7 ± 2.1 |
| Mental fatigue |
15.9 ± 3.5 |
10.3 ± 3.9 |
6.6 ± 2.7 |
| Reduced motivation |
13.4 ± 4.0 |
10.3 ± 3.0 |
6.2 ± 2.0 |
| Reduced activity |
15.8 ± 3.3 |
11.9 ± 3.5 |
5.9 ± 2.0 |
| Symptom Inventory (mean ± sd) |
52.2 ± 24.8 |
21.6 ± 12.6 |
7.0 ± 8.5 |
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All clusters were significantly different from the other clusters with respect to all scales | |||
Reeves et al. BMC Medicine 2005 3:19 doi:10.1186/1741-7015-3-19 |
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