From: Psychometric properties of fatigue severity scale in Chinese systemic lupus erythematosus patients
 | 9-item FSS | 7-item FSS | ||
---|---|---|---|---|
 | With depression (n = 89) | Without depression (n = 112) | With depression (n = 89) | Without depression (n = 112) |
Median | 4.80 | 3.35 | 4.43 | 2.57 |
Z |  | −5.56 |  | − 5.70 |
P value | Â | 0.000a | Â | 0.000a |