Table 1.

MESA definitions of RLS, PLMS, and electro-clinical RLS

RLS	Designated as a case if “yes” indicated for each of the following questionnaire items:
	1. Do you ever experience a desire to move your legs because of discomfort or disagreeable sensations in your legs?
	2. Do you sometimes feel the need to move to relieve the discomfort, for example by walking, or by rubbing your legs?
	3. Are these symptoms worse when you are at rest, with at least temporary relief by activity?
	4. Are these symptoms worse later in the day or at night?
PLMS	>15 Periodic limb movements / hour of sleep.
Electro-clinical RLS	Having both RLS and PLMS conditions per MESA definitions.