MOS Sleep Scale


The MOS Sleep Scale was originally developed in the Medical Outcomes Study (MOS). Intended to assess the extent of sleep problems, the MOS Sleep Scale measures six dimensions of sleep, including initiation, maintenance (e.g. staying asleep), quantity, adequacy, somnolence (e.g. drowsiness), and respiratory impairments (e.g. shortness of breath, snoring). Disturbed sleep has a major impact on quality of life and is often a common symptom of many other chronic conditions, such as chronic pain and mood disorders.

Starting in 2010, the MOS Sleep Scale is available with patient and aggregate reports and a single standardized scoring engine. Updated U.S.norms are also available using 2009 survey results.

QualityMetric distributes language translations of two versions of the MOS Sleep Scale:

Intended for adults 18 years of age and older, the forms are available in a static (paper/pencil) mode of administration, with a standard four-week recall period. Some language translations of the 12 question form are also offered with an acute one-week recall period.

The reliability and validity of the MOS Sleep Scale have been evaluated in a number of disease areas, including neuropathic pain, restless leg syndrome, overactive bladder, and rheumatoid arthritis. It has also been evaluated in the general U.S. population. A recent literature search yielded 80 citations in which the MOS Sleep Scale had been used, including 14 clinical trials.

An estimated 50 to 70 million Americans suffer from a chronic disorder of sleep and wakefulness.
The National Academies Press, 2006
Share | Print | Enlarge