Fatigue, Tiredness, Lack of Energy, and Sleepiness in Multiple Sclerosis Patients Referred for Clinical Polysomnography

Figure 1

Frequencies of Likert responses for problematic sleepiness (a), fatigue (b), tiredness (c), and lack of energy (d) among MS patients (group 1) and matched controls (group 0). 1 = “never;” 2 = “seldom;” 3 = “occasionally;” 4 = “often;” and 5 = “almost always”.

(a)

(b)

(c)

(d)