Table 4

Areas of substantial improvement in the intervention group compared to baseline measures (where a concomitant improvement was not observed in the control group).

Area
Description
Percentage Improvement over baseline measure

Fatigue
Item of original Columbia Scale
26.9%
Concentration
Item of original Columbia Scale
36.8%
Daytime Alertness
Item of original Columbia Scale
28.1%
Feelings of Weakness
Item of original Columbia Scale
26.7%
Light-headedness
Item of original Columbia Scale
33.7%
Sleepiness
Item of original Columbia Scale
31.0%
Work Performance
Additional item (derived from WHO-HPQ)
19.4%
Alertness & oncentration
Additional item
22.9%
Vitality
Combined measure from SF-36
28.4%
Mental Health
Combined measure from SF-36
13.9%

Mills et al. Journal of Circadian Rhythms 2007 5:2   doi:10.1186/1740-3391-5-2