Table 2.

Within- and Between-Group Differences in Total and Subdomains of Cancer-Related Fatigue^a.

MFSI (Mean ± SE)	YOCAS				Standard Survivorship Care				YOCAS Versus Standard Survivorship Care
	Pre-Intervention (n = 177)	Post-Intervention (n = 168)	Within-Group Difference	P	Pre-Intervention (n = 181)	Post-Intervention (n = 160)	Within-Group Difference	P	Between-Group Difference	P	Between-Group Effect Size (95% CI)
General	11.4 ± 0.5	8.6 ± 0.4	−2.7 ± 0.4	<0.01	11.1 ± 0.5	10.4 ± 0.5	−0.4 ± 0.4	0.31	−2.1 ± 0.5	<0.01	−0.34 (−0.50 to −0.18)
Physical	7.3 ± 0.4	4.9 ± 0.4	−2.3 ± 0.3	<0.01	7.6 ± 0.4	6.7 ± 0.4	−0.8 ± 0.3	0.10	−1.6 ± 0.4	<0.01	−0.28 (−0.42 to −0.15)
Emotional	7.0 ± 0.4	5.3 ± 0.4	−1.5 ± 0.3	<0.01	7.5 ± 0.4	6.6 ± 0.4	−0.7 ± 0.3	0.12	−1.0 ± 0.4	<0.01	−0.17 (−0.29 to −0.04)
Mental	8.2 ± 0.4	6.2 ± 0.4	−1.7 ± 0.3	<0.01	8.0 ± 0.4	7.2 ± 0.4	−0.8 ± 0.3	0.15	−0.9 ± 0.3	<0.01	−0.17 (−0.28 to −0.05)
Vigor	10.2 ± 0.4	11.6 ± 0.4	1.5 ± 0.3	<0.01	10.5 ± 0.4	10.6 ± 0.4	0.0 ± 0.3	0.78	1.3 ± 0.4	<0.01	0.27 (0.11 to 0.43)
Total MFSI	23.6 ± 1.6	13.4 ± 1.6	−9.5 ± 1.2	<0.01	23.8 ± 1.7	20.2 ± 1.6	−2.7 ± 1.0	0.13	−6.8 ± 1.4	<0.01	−0.31 (−0.44 to −0.18)

Abbreviations: YOCAS, Yoga for Cancer Survivors; MFSI, Multidimensional Fatigue Symptom Inventory; SE, standard error; CI, confidence interval.

^aEach MFSI subdomain score ranges from 0 to 24. The total MFSI score ranges from −24 to 96. Higher scores indicate worse fatigue.