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. Author manuscript; available in PMC: 2015 Jul 13.
Published in final edited form as: Fatigue. 2015 May 8;3(3):142–155. doi: 10.1080/21641846.2015.1039289

Table 2.

Summary of Fatigue and Depression-Related Variables

Variable CFS/ME (n = 95) Breast Cancer (n = 67) p
Fatigue
 Interference, M (SD) 7.03 (1.90) 2.62 (2.11) <.001
 Severity, M (SD) 6.83 (1.33) 4.65 (1.53) <.001
Depressive symptoms
 Depressed mood, M (SD) 7.62 (6.27) 3.42 (3.55) <.001
 Continuous, M (SD) 25.70 (12.55) 12.59 (9.27) <.001
 Clinically elevated, n (%) 72 (76%) 17 (25%) <.001

Note: M=Mean. SD=Standard Deviation. Fatigue Interference and Severity from Fatigue Symptom Inventory (FSI) subscales; Depressive symptoms from Center for Epidemiological Studies – Depression (CES-D) measure; Clinically elevated Depressive symptoms defined as a total score of ≥ 16. Group differences on continuous variables determined by independent-samples t-test. Group differences on dichotomous variables determined by Pearson Chi-Square test.