PMID- 25656604
OWN - NLM
STAT- MEDLINE
DCOM- 20150713
LR  - 20220331
IS  - 1502-7732 (Electronic)
IS  - 0300-9742 (Linking)
VI  - 44
IP  - 3
DP  - 2015 May
TI  - Determination of the minimal clinically important difference for seven measures 
      of fatigue in Swedish patients with systemic lupus erythematosus.
PG  - 206-10
LID - 10.3109/03009742.2014.988173 [doi]
AB  - OBJECTIVE: To estimate the minimal clinically important difference (MCID) in 
      seven self-administered measures assessing fatigue in Swedish patients with 
      systemic lupus erythematosus (SLE). METHOD: The participants (n = 51, women 98%, 
      age 52.8 +/- 12.1 years, disease duration 18.7 +/- 13.6 years) met in groups of six 
      to nine persons. After completing seven fatigue questionnaires [the Fatigue 
      Severity Scale (FSS); the Multidimensional Assessment of Fatigue (MAF) scale; the 
      20-item Multidimensional Fatigue Inventory (MFI); the Chalder Fatigue Scale 
      (CFS); the Short Form-36 Vitality subscale (VT); the Functional Assessment of 
      Chronic Illness Therapy - Fatigue (FACIT-F) scale; and the Numeric Rating Scale 
      (NRS)], each respondent had a minimum of five face-to-face discussions, followed 
      by an individual comparative assessment of their own level of fatigue 
      (seven-grade scale). This method resulted in 260 contrasting assessments; MCIDs 
      were first calculated using the paired differences and then established by a 
      regression approach. Patients were asked to comment on their experience with the 
      questionnaires and whether they captured their fatigue adequately. RESULTS: The 
      paired approach (using 'little more fatigue' as an anchor for MCID during the 
      face-to-face comparative assessments) provided estimates of 4.6-17.0; the 
      regression approach provided estimates of 4.3-10.8. Estimates using the 
      regression approach were consistently lower than those using the paired model. 
      The MCID estimates were least favourable and fewer respondents supported the use 
      of the NRS compared to the other self-reported questionnaires. CONCLUSIONS: All 
      seven instruments detect MCIDs for fatigue in Swedish patients with SLE. However, 
      the single-question measure was not supported by the MCID estimates or by 
      comments from the respondents.
FAU - Pettersson, S
AU  - Pettersson S
AD  - Rheumatology Clinic, Karolinska University Hospital , Solna, Stockholm , Sweden.
FAU - Lundberg, I E
AU  - Lundberg IE
FAU - Liang, M H
AU  - Liang MH
FAU - Pouchot, J
AU  - Pouchot J
FAU - Henriksson, E Welin
AU  - Henriksson EW
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20150206
PL  - England
TA  - Scand J Rheumatol
JT  - Scandinavian journal of rheumatology
JID - 0321213
SB  - IM
MH  - Adult
MH  - Aged
MH  - Fatigue/*diagnosis/etiology
MH  - Female
MH  - Humans
MH  - Lupus Erythematosus, Systemic/complications/*diagnosis
MH  - Male
MH  - Middle Aged
MH  - Severity of Illness Index
MH  - Surveys and Questionnaires
MH  - Sweden
EDAT- 2015/02/07 06:00
MHDA- 2015/07/15 06:00
CRDT- 2015/02/07 06:00
PHST- 2015/02/07 06:00 [entrez]
PHST- 2015/02/07 06:00 [pubmed]
PHST- 2015/07/15 06:00 [medline]
AID - 10.3109/03009742.2014.988173 [doi]
PST - ppublish
SO  - Scand J Rheumatol. 2015 May;44(3):206-10. doi: 10.3109/03009742.2014.988173. Epub 
      2015 Feb 6.