Can subjects be categorized (eg. high and low fatigue) according to their score on the Fatigue Severity Scale?
The ranges given are means & SD. The average scores are from the literature. No one has really defined a cutoff for the FSS but the general rule is 2 SDs beyond the average is ‘pathological’, ie, indicative of high fatigue. Based on these figures, that would indicate that any score beyond 3.7 is indicative of high fatigue. Certainly the sleep disorders, OSA and fatigued shift workers are beyond that cutoff. Anything below 3.7 would fall into the ‘average’ group. I don’t know that we can categorize the scale into low, medium and high fatigue (we generally just use normal and high), since I really don’t have any data to base such a categorization on, and I’ve never seen this done in the literature. • April 25, 2006: What is the difference between FS (Fatigue Scale) and FSS (Fatigue Severity Scale)? The FS (Fatigue Scale) and FSS (Fatigue Severity Scale) are different scales that measure fatigue. They both tap into differing aspects of fatigue to help us better define this state. Here is
