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. 2017 Dec 6;15:237. doi: 10.1186/s12955-017-0807-5

Table 6.

Known-Groups Validity of Severity of Worst Tiredness Using CDAI Subgroups at Day 1

PRO/Study CDAI Category p-value
0.0 to ≤ 22.0
N, Mean (SD)
>22.0 to ≤ 76.0
N, Mean (SD)
Severity of Worst Tiredness Day 1
 RA-BEAM 36, 4.9 (2.6) 497, 5.9 (2.1) 0.007a
 RA-BUILD 26, 4.8 (2.1) 278, 6.1 (2.0) 0.016a

Abbreviations: SD = standard deviation; CDAI = Clinical Disease Activity Index

a p-value based on a comparison of mean values using ANOVA