. Author manuscript; available in PMC: 2016 Jan 31.

Published in final edited form as: Arthritis Care Res (Hoboken). 2015 Feb;67(2):288–296. doi: 10.1002/acr.22417

Table 4.

Fatigue Task Performance decrement in people with fibromyalgia (n=24) compared to healthy controls (n=33) Data for fatigue task performance during single and dual fatigue tasks with covariates of BMI and Depression (CESD). Data are mean (M)±S.E.M. and 95% confidence intervals (CI).

Percent Decrement:(Single Task - Dual Task)/Single Task		All Subjects	FM	HC	P Value FM vs. HC
Total Words	M	23.64 ± 2.60%	19.17± 4.77%	26.89 ± 2.78%	0.12
Total Words	CI	18.43 to 28.85%	9.29 to 29.05%	8.27 ± 23.53%	0.12
Total Transfer(s)	M	-7.92 ± 2.87%	-11.04 ± 4.90%	-5.65 ± 3.47%	0.47
Total Transfer(s)	CI	-13.68 to -2.16%	-12.72 to 2.52%	-12.72 to 1.42%	0.47

BMI=Body mass index, CESD=Center for Epidemiology – Depression, S.E.M. =standard error of measure, FM=fibromyalgia group, HC=healthy control group, CFT=Cognitive fatigue performance task, PFT=physical fatigue performance task, DFT=dual fatigue performance task

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p<0.01 Significant difference between fibromyalgia group and healthy control group