What's New

Fibromyalgia


Health and Quality of Life Outcomes 2009, 7:12doi:10.1186/1477-7525-7-12

 

Research

 

Reliability of a 1-week recall period for the Medical Outcomes Study Sleep Scale
(MOS-SS) in patients with fibromyalgia

 

Alesia Sadosky (1) , Ellen Dukes (1) and Chris Evans (2)

 

  1. Pfizer Global Outcomes Research, 235 East 42nd Street, New York, NY 10017, USA
  2. Mapi Values, 15 Court Square, Suite 620, Boston, MA 02108, USA

 

The electronic version of this article is the complete one and can be found online at:
http://www.hqlo.com/content/7/1/12

 

Published: 10 February 2009

 

© 2009 Sadosky et al; licensee BioMed Central Ltd.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

 

Objective

To evaluate the reliability of a one-week versus a four-week recall period of the Medical Outcomes Study Sleep Scale (MOS-SS) in patients with fibromyalgia (FM).

Methods

The MOS-SS was administered by mail to patients with a confirmed diagnosis of FM and a current pain rating of > 2 (0–10 point numerical rating scale) recruited through newspapers, support groups, and the Internet. Reliability of MOS-SS subscale domains was evaluated using test-retest methodology separated by a 1–3 day interval for the 4-week recall period and a 7-day interval for the 1-week recall period. Patient Impression of Change was evaluated for sleep, and for patients with no change, the intraclass correlation coefficient (ICC) and the Pearson correlation coefficient was calculated for MOS-SS subscales.

Results

Of 129 patients enrolled, 91.3% were female, mean age was 49.4 ± 11.0 years; self-rated FM severity was moderate-to-severe in 88.1% of patients. MOS-SS subscale scores were similar for both recall periods with little variation between test-retest. The 9-item Sleep Problems Index scores ranged from 57.2 ± 14.5 to 61.9 ± 15.8 across all assessments and demonstrated high reliability which was similar for the 1-week (ICC 0.81) and 4-week (ICC 0.89) recall periods. For the other MOS-SS subscales, the 1-week recall period also showed good reliability, which was consistent for the ICC and Pearson correlation coefficients.

Conclusion

A 1-week recall period is adequately reliable for use of the MOS-SS in studies evaluating sleep disturbance in patients with FM.

 

Full Text article at : http://www.hqlo.com/content/7/1/12

 

Also available as PDF document

 

Disclaimer:

Information on this site is provided for educational purposes only and is not meant to substitute the advice provided by your own physician or other medical professionals.
Consult your own physician regarding the applicability of any information listed on this website with respect to your symptoms or medical condition

 

Disclaimer