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. 2015 Jul 26;16:314. doi: 10.1186/s13063-015-0857-0

Table 5.

Results of the mixed model for repeated measures (MMRM) analysis of fatigue severity scale (FSS) score in the subgroups

Subgroup Baseline 5 weeks 13 weeks
Mean (SD) Mean (SD) P a LSMD (95 % CI)a Interactionb Mean (SD) P a LSMD (95 % CI)a Interactionb
CFS (n = 63) A 5.50 (0.94) 3.62 (1.22) 0.993 0.02 (−0.51, 0.56) 0.585c 3.43 (1.21) 0.924 −0.08 (−0.64, 0.48) 0.854c
B 5.06 (0.87) 3.75 (1.00) 0.768 −0.14 (−0.66, 0.38) 3.95 (1.05) 0.901 −0.09 (−0.64, 0.46)
C 4.74 (0.81) 4.39 (0.97) - - 4.44 (1.23) - -
ICF (n = 87) A 4.06 (1.14) 3.21 (0.99) 0.008 −0.68 (−1.20, −0.16) 3.27 (1.15) 0.078 −0.48 (−1.01, 0.04)
B 4.50 (1.16) 3.44 (1.21) 0.188 −0.37 (−0.89, 0.14) 3.16 (1.20) 0.235 −0.35 (−0.87, 0.17)
C 4.32 (1.47) 4.51 (1.29) - - 4.19 (1.25) - -

LSMD, least squares mean difference; CI, confidence interval; CFS, chronic fatigue syndrome; ICF, idiopathic chronic fatigue

a P value with 95 % CI, Dunnett’s adjustment. bSubgroup treatment effect interaction. c P value